Comprehensive Utilization of Red Mud

*Recovery and Utilization of Metallurgical Solid Waste*

coal based direct reduction of ore fines. In: International Conference on Pre- Reduced Pellets and Europe, Milan, Italy. The International Metals Reclamation Company. September

[33] Gao G, Li JX, Long HM, Wang P, Wei RF. Experimental study on improving strength of dust and sludge carbon-containing pellets after drying. Journal of Anhui University of Technology(Natural Science). 2011;**28**:319-324 (in Chinese)

[34] Tsukerman T, Duchesne C, Hodouin D. On the drying rates of individual iron oxide pellets. International Journal of Mineral Processing. 2007;**83**:99-115

[35] Feng JX, Yang SH. Experiment research into hot air cross-flow drying on carbon-containing pellets. Industrial Heating. 2007;**36**(1):27-30 (in Chinese)

(Science). 2011;**16**(3):312-315

[37] Umadevi T, Prachethan Kumar P, Kumar P, Lobo NF, Ranjan M. Investigation of factors affecting pellet strength in straight grate induration machine. Ironmaking and Steelmaking. 2008;**35**(5):321-326

[36] Feng JX, Liang KL, Zhang C, Xu JH, Zhang YM, Yang JB. Development and application of thermal mathematical model of iron ore pellet bed in grate. Journal of Shanghai Jiaotong University

23-24, 1996

**82**

**85**

**Chapter 6**

**Abstract**

Furnace

*Andrey Dmitriev*

blast furnace smelting

**1. Introduction**

The Comprehensive Utilisation

of Red Mud Utilisation in Blast

State-of-the-art formation of red mud during industrial processing of bauxite in the Sverdlovsk region (Russian Federation) is presented. Red mud chemical composition is presented, and an analysis of existing ways in which they are utilised is executed. In the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, red mud is utilised by introducing it into the charge for the production of iron ore sinter and pellets following the use of sinter and pellets in the blast furnace charge. Metallurgical properties of sinter and pellets (reducibility, strength, softening and melting temperatures) with different contents of red mud in iron ore raw materials are also presented, including the technology of red mud usage in ferrous metallurgy carried out through industrial and laboratorial tests. Additionally, the main technical and economic indicators of blast furnace smelting (productivity, coke consumption, chemical composition of pig iron and slag, etc.) are presented. The possibility and

expediency of utilisation of red mud in a blast furnace are shown.

400 hectares with more than 40 million tonnes of mud.

tonnes of dangerous waste are formed every year.

**Keywords:** red mud, agglomerate, pellets, metallurgical characteristics,

Red mud is one of the mass wastes of the aluminium industry. The exit of red mud fluctuates, depending on the structure and properties of processed bauxite raw materials, within 0.8–1.2 kg per tonne of aluminium. In the world, more than 50 million tonnes of red mud are dumped in dumps or reservoirs each year.

In 60 years of operation of the aluminous shop of the Ural Aluminium Plant, three mud storage facilities have been constructed using more than 500 hectares of area with over 63 million tonnes of red mud. A similar picture is seen with the Bogoslovsk Aluminium Plant: mud storage facilities occupy a space of more than

Currently, about 600 million tonnes of red mud are saved in Russia, and this quantity increases annually by 5–8 million tonnes. In the Sverdlovsk region, mud storage facilities managing more than 137 million tonnes are necessary, and 3 million

Negative environmental impact has proven the urgency of the problem of red mud usage. Moreover, there are useful components within the contents of red mud at the industrial level that increase prospects of its utilisation. However, the

## **Chapter 6**

## The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace

*Andrey Dmitriev*

## **Abstract**

State-of-the-art formation of red mud during industrial processing of bauxite in the Sverdlovsk region (Russian Federation) is presented. Red mud chemical composition is presented, and an analysis of existing ways in which they are utilised is executed. In the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, red mud is utilised by introducing it into the charge for the production of iron ore sinter and pellets following the use of sinter and pellets in the blast furnace charge. Metallurgical properties of sinter and pellets (reducibility, strength, softening and melting temperatures) with different contents of red mud in iron ore raw materials are also presented, including the technology of red mud usage in ferrous metallurgy carried out through industrial and laboratorial tests. Additionally, the main technical and economic indicators of blast furnace smelting (productivity, coke consumption, chemical composition of pig iron and slag, etc.) are presented. The possibility and expediency of utilisation of red mud in a blast furnace are shown.

**Keywords:** red mud, agglomerate, pellets, metallurgical characteristics, blast furnace smelting

### **1. Introduction**

Red mud is one of the mass wastes of the aluminium industry. The exit of red mud fluctuates, depending on the structure and properties of processed bauxite raw materials, within 0.8–1.2 kg per tonne of aluminium. In the world, more than 50 million tonnes of red mud are dumped in dumps or reservoirs each year.

In 60 years of operation of the aluminous shop of the Ural Aluminium Plant, three mud storage facilities have been constructed using more than 500 hectares of area with over 63 million tonnes of red mud. A similar picture is seen with the Bogoslovsk Aluminium Plant: mud storage facilities occupy a space of more than 400 hectares with more than 40 million tonnes of mud.

Currently, about 600 million tonnes of red mud are saved in Russia, and this quantity increases annually by 5–8 million tonnes. In the Sverdlovsk region, mud storage facilities managing more than 137 million tonnes are necessary, and 3 million tonnes of dangerous waste are formed every year.

Negative environmental impact has proven the urgency of the problem of red mud usage. Moreover, there are useful components within the contents of red mud at the industrial level that increase prospects of its utilisation. However, the

existence and influence of other red mud components that may variously impact technological processes in the blast furnace, structure and properties of products from blast furnace smelting still require detailed study.

### **2. State of the art**

In works [1, 2] the technological expediency of using red mud as a ferriferous additive in blast furnace smelting has been shown. However, excepting the iron generally provided in the form of Fe2O3, which contains 15–20% А12O3, the ratio of CaO/SiO2 is close to one, which contains to 4–5% of MgO. Existence of such a quantity and a combination of slag-forming components allows red mud to be used as an additive to correct properties of final slags on physical and chemical properties.

In work [3] it is noted that the iron oxide accounts for about 50 wt% in the red mud; therefore, it is logical to consider the possibilities of red mud usage in burden structure for receiving blast furnace agglomerates. However, it is also necessary to consider that this material considerably concedes to processed iron ores according to the content of iron. Its application undoubtedly reduces productivity of blast furnaces and increases coke consumption. The specified minus is blocked by pluses from essential increases in the durability of the agglomerate. Red mud is found to prevent polymorphism of two-calcium silicate in the structure of the agglomerate. It also leads to the elimination of internal tension destroying the agglomerate. A reduction of the fraction of 0–5 mm per 1% promotes a gain of productivity of the blast furnace per 1% with the same economy of consumption as the expensive blast furnace coke. The binding properties of red mud are also revealed. The burden pelletising and its gas permeability improve. Productivity of sintering machines raises by 5–10% without capital expenditure. If the guantity of small fraction in the agglomerate is reduced by 3–5%, and reduction in the content of iron averages about 0.5%, the summary of technological efficiency in blast furnace production has a gain of 1.2–2.5% on production of cast iron and 1.5–1.8% on economy of blast furnace coke. In addition, the red mud input in the structure burden agglomerate will form a hardened aluminoferrite ligament of agglomerate and pellets. The exit of 0–0.5 mm during the heating and reduction of the agglomerate and pellets in blast furnaces is reduced by 20–40%. Therefore, iron losses with dust taken out from blast furnaces decrease and productivity grows.

In work [4] a negative factor of the ecology of the Russian blast furnace production is noted: the environmental harm from large dust output caused by low mechanical strength and durability in the reduction of blast furnace agglomerates and pellets. This shortcoming can be eliminated through the initial burden of the waste of aluminous production—red mud. Still, it can be hampered by the negative consequences of a reduction in the content of iron in blast furnace burdens. Calculations prove that the negative effect is compensated for by a reduction in the number of small-sized fractions in blast furnace burdens. Domestic agglomerates have been chosen for an assessment of the influence of additive red mud on the increase in productivity and reduction of coke consumption: Bakal with minimum 43.8%, Kachkanar with maximum 60.0% iron content and the Magnitogorsk agglomerate with an average iron content of 53.10%. Calculations establish an introduction in agglomerate burdens of 2% red mud (with mass percentages: 30.0–50.0 Fe2О3, 12.0–15.0 Al2О3, 4.0–7.0 SiO2, 5.0–8.0 CaO, 4.0–5.0 ТiO2, 2.0–4.0 Na2O, 2–3 others, 8–10 losses on calcination), taking into account the reduction of the content of a trifle that allows an increase in the productivity of blast furnaces in the range of 0.67–3.67%, with economy of 0.23–1.73% coke. What's more, inputting red mud in the structure of the blast furnace burden allows additional technological effects at

**87**

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

tion, roasting pellets were exposed to phase and chemical analysis.

Work [6] performs the development of technology for the Ural Aluminium Plant's red mud enrichment by receiving an iron concentrate of FeO = 45–50%. The structure of red mud minerals was defined when studying a polished section under a microscope using the programme "the Mineral-7". The Ural Aluminium Plant red mud enrichment methods are mainly the magnetic and gravitational methods, as well as the physical and chemical methods; a product attrition in the rotor-pulsating device with participation of processes of cavitation from surface processing by hexametaphosphate for a flocculus dispersion has been chosen. It is revealed that the general mineral content of iron in studied tests of the Ural Aluminium Plant makes 53 and 15% from chamosite with an iron content making 18%. In the structure of red mud, there is a significant amount of amorphous formations (flocculus) in which grains of iron-bearing minerals are included. The study of material structure has revealed the following directions for red mud enrichment: attrition; use of dispergators and rotor-pulsating units for flocculus disaggregation of initial red mud; high-gradient magnetic separation for separation of haematite, chamosite and goethite; and gravitational enrichment on a concentration table for operational

The results of research on properties of the monomineral fractions allocated from red mud are given in work [7]. The main fractions of red mud are haematite, chamosite and calcite. These fractions have been received by enrichment methods. At monomineral fractions the material structure and physical characteristics (signs), such as a specific magnetic susceptibility and true density, have been defined, and the factor of visibility between separate fractions on each of the physical signs is calculated. The maximum values of factors of visibility 3.75 and 2.3 on a specific magnetic susceptibility have been received, respectively, between haematite and calcite and haematite and chamosite. It has allowed the prediction of the first operations of the technological scheme of enrichment and the main and recleaning high-gradient magnetic separation with an induction of a magnetic field of 1.4–1.5 Tesla, which have been received when studying the dependence of specific magnetic moments of monomineral fractions from the set induction of a field. Further operations of the scheme (gravitational) have been predicted on the basis of the analysis of fraction visibility factors and checked with the use of a concentration table and Knelson separator. The results of research studies issue the optimum technological scheme of red mud enrichment as receiving an iron concentrate with a 50% general

Work [8] shows that the additive-enriched red mud in quantities of 4% in the high-basicity agglomerate burden of Kachkanarsky Mining and Processing

the expense of education protective scar in a high-temperature zone of blast furnace

Work [5] notes a thermal agglomeration of ores and concentrates on the removal of harmful impurities of sulphur and phosphorus. It is useful that red mud is used for the improvement of the quality of iron ore agglomerates and pellets. In this work, it is established that in the agglomeration of red mud in aluminous production, it is possible to delete not less than 45% of alkalis and 65% of sulphur from the mud at an optimum consumption of solid fuel; additionally, by the oxidation-reduction roasting of pellets from red mud, it is possible to reduce the content of alkali, sulphur and phosphorus, respectively, by 58–60%, 31–38% and 10–15%. Sintering and roasting are carried out in semi-factory bowls with a 420 mm diameter, while the oxidising roasting of pellets from red mud is carried out at 1000–1200°C and reduction roasting at 1100–1200°C. Coke is used as a reducing agent at a coarseness of <1 mm, which was loaded into a crucible together with pellets in a mass ratio of 1:1 that provided protection of pellets against oxidation. After oxidising and reduc-

lining with the raised content in blast furnace slag of hard titanium dioxide.

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

development of magnetic products.

iron content and a 15% output.

#### *The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace DOI: http://dx.doi.org/10.5772/intechopen.80087*

*Recovery and Utilization of Metallurgical Solid Waste*

**2. State of the art**

from blast furnace smelting still require detailed study.

from blast furnaces decrease and productivity grows.

In work [4] a negative factor of the ecology of the Russian blast furnace production is noted: the environmental harm from large dust output caused by low mechanical strength and durability in the reduction of blast furnace agglomerates and pellets. This shortcoming can be eliminated through the initial burden of the waste of aluminous production—red mud. Still, it can be hampered by the negative consequences of a reduction in the content of iron in blast furnace burdens. Calculations prove that the negative effect is compensated for by a reduction in the number of small-sized fractions in blast furnace burdens. Domestic agglomerates have been chosen for an assessment of the influence of additive red mud on the increase in productivity and reduction of coke consumption: Bakal with minimum 43.8%, Kachkanar with maximum 60.0% iron content and the Magnitogorsk agglomerate with an average iron content of 53.10%. Calculations establish an introduction in agglomerate burdens of 2% red mud (with mass percentages: 30.0–50.0 Fe2О3, 12.0–15.0 Al2О3, 4.0–7.0 SiO2, 5.0–8.0 CaO, 4.0–5.0 ТiO2, 2.0–4.0 Na2O, 2–3 others, 8–10 losses on calcination), taking into account the reduction of the content of a trifle that allows an increase in the productivity of blast furnaces in the range of 0.67–3.67%, with economy of 0.23–1.73% coke. What's more, inputting red mud in the structure of the blast furnace burden allows additional technological effects at

existence and influence of other red mud components that may variously impact technological processes in the blast furnace, structure and properties of products

In works [1, 2] the technological expediency of using red mud as a ferriferous additive in blast furnace smelting has been shown. However, excepting the iron generally provided in the form of Fe2O3, which contains 15–20% А12O3, the ratio of CaO/SiO2 is close to one, which contains to 4–5% of MgO. Existence of such a quantity and a combination of slag-forming components allows red mud to be used as an additive to correct properties of final slags on physical and chemical properties. In work [3] it is noted that the iron oxide accounts for about 50 wt% in the red mud; therefore, it is logical to consider the possibilities of red mud usage in burden structure for receiving blast furnace agglomerates. However, it is also necessary to consider that this material considerably concedes to processed iron ores according to the content of iron. Its application undoubtedly reduces productivity of blast furnaces and increases coke consumption. The specified minus is blocked by pluses from essential increases in the durability of the agglomerate. Red mud is found to prevent polymorphism of two-calcium silicate in the structure of the agglomerate. It also leads to the elimination of internal tension destroying the agglomerate. A reduction of the fraction of 0–5 mm per 1% promotes a gain of productivity of the blast furnace per 1% with the same economy of consumption as the expensive blast furnace coke. The binding properties of red mud are also revealed. The burden pelletising and its gas permeability improve. Productivity of sintering machines raises by 5–10% without capital expenditure. If the guantity of small fraction in the agglomerate is reduced by 3–5%, and reduction in the content of iron averages about 0.5%, the summary of technological efficiency in blast furnace production has a gain of 1.2–2.5% on production of cast iron and 1.5–1.8% on economy of blast furnace coke. In addition, the red mud input in the structure burden agglomerate will form a hardened aluminoferrite ligament of agglomerate and pellets. The exit of 0–0.5 mm during the heating and reduction of the agglomerate and pellets in blast furnaces is reduced by 20–40%. Therefore, iron losses with dust taken out

**86**

the expense of education protective scar in a high-temperature zone of blast furnace lining with the raised content in blast furnace slag of hard titanium dioxide.

Work [5] notes a thermal agglomeration of ores and concentrates on the removal of harmful impurities of sulphur and phosphorus. It is useful that red mud is used for the improvement of the quality of iron ore agglomerates and pellets. In this work, it is established that in the agglomeration of red mud in aluminous production, it is possible to delete not less than 45% of alkalis and 65% of sulphur from the mud at an optimum consumption of solid fuel; additionally, by the oxidation-reduction roasting of pellets from red mud, it is possible to reduce the content of alkali, sulphur and phosphorus, respectively, by 58–60%, 31–38% and 10–15%. Sintering and roasting are carried out in semi-factory bowls with a 420 mm diameter, while the oxidising roasting of pellets from red mud is carried out at 1000–1200°C and reduction roasting at 1100–1200°C. Coke is used as a reducing agent at a coarseness of <1 mm, which was loaded into a crucible together with pellets in a mass ratio of 1:1 that provided protection of pellets against oxidation. After oxidising and reduction, roasting pellets were exposed to phase and chemical analysis.

Work [6] performs the development of technology for the Ural Aluminium Plant's red mud enrichment by receiving an iron concentrate of FeO = 45–50%. The structure of red mud minerals was defined when studying a polished section under a microscope using the programme "the Mineral-7". The Ural Aluminium Plant red mud enrichment methods are mainly the magnetic and gravitational methods, as well as the physical and chemical methods; a product attrition in the rotor-pulsating device with participation of processes of cavitation from surface processing by hexametaphosphate for a flocculus dispersion has been chosen. It is revealed that the general mineral content of iron in studied tests of the Ural Aluminium Plant makes 53 and 15% from chamosite with an iron content making 18%. In the structure of red mud, there is a significant amount of amorphous formations (flocculus) in which grains of iron-bearing minerals are included. The study of material structure has revealed the following directions for red mud enrichment: attrition; use of dispergators and rotor-pulsating units for flocculus disaggregation of initial red mud; high-gradient magnetic separation for separation of haematite, chamosite and goethite; and gravitational enrichment on a concentration table for operational development of magnetic products.

The results of research on properties of the monomineral fractions allocated from red mud are given in work [7]. The main fractions of red mud are haematite, chamosite and calcite. These fractions have been received by enrichment methods. At monomineral fractions the material structure and physical characteristics (signs), such as a specific magnetic susceptibility and true density, have been defined, and the factor of visibility between separate fractions on each of the physical signs is calculated. The maximum values of factors of visibility 3.75 and 2.3 on a specific magnetic susceptibility have been received, respectively, between haematite and calcite and haematite and chamosite. It has allowed the prediction of the first operations of the technological scheme of enrichment and the main and recleaning high-gradient magnetic separation with an induction of a magnetic field of 1.4–1.5 Tesla, which have been received when studying the dependence of specific magnetic moments of monomineral fractions from the set induction of a field. Further operations of the scheme (gravitational) have been predicted on the basis of the analysis of fraction visibility factors and checked with the use of a concentration table and Knelson separator. The results of research studies issue the optimum technological scheme of red mud enrichment as receiving an iron concentrate with a 50% general iron content and a 15% output.

Work [8] shows that the additive-enriched red mud in quantities of 4% in the high-basicity agglomerate burden of Kachkanarsky Mining and Processing Integrated Works leads to growth in the quality of the agglomerate and slightly influences indicators of blast furnace smelting; this means that enriching red mud additives in agglomerative production with subsequent blast furnace repartition is a perspective technology for their utilisation. As a positive influence of red mud additives to agglomerates, the increase in the content of MgO in the final slags with 9.1 to 11.2–11.5% is noted as a slight improvement to the negative influence of mud on properties of slags. The increase of magnesia in the final slags, especially when processing high-fluxed agglomerates, leads to increased stability in their phase structure, particularly regarding areas on the border of melilite and spinel slags displaced towards pure spinel, i.e. in areas of more stable temperatures in the beginning of crystallisation. Influence of the specified factor has allowed properties of slag to be saved at the required level—despite an increase in the content of alumina in slag—and has weakened influence of red mud on its properties.

Work [9] studies the structure, thermal characteristics and composition of red mud in the current production of the Ural Aluminium Plant with the help of spectral methods (a mass fraction on solids: 46.7% Fe2О3, 12.8% Al2О3, 14.5% SiO2, 10.85% СаО, 4.7% ТiO2, 4.7% Na2O, 1.125% others). X-ray analysis is carried out on a diffractometer by X'Pert PRO (PANanalitical, the Netherlands) in monochromatic CuKa radiation. For the purpose of specification of the search for iron atoms in different minerals, samples of red mud have been investigated by a method of Mössbauer spectroscopy. In work MS-1104Em, a spectrometer with a source of Co57 in a rhodium matrix was used. The isomerous shift was relatively defined α-Fe. For high-quality determination of the sizes of mineral phases and distribution of elements in them, the samples of red mud have been studied on the electron microscope JXA-8100 (JEOL, Japan) with a power dispersive system, INCA Energy 400. Extant research of red mud structures shows that from the point of view of iron ore materials, the material represents a difficult system of dispersed and ultradispersed crystals of haematite surrounded by ferriferous phases in the form of a crystal phase of chamosite and amorphous iron-silica-alumina phases. Enrichment of such material through traditional means is represented as difficult to realise.

Work [10] establishes the basis of studying red mud structures in the current production of the Ural Aluminium Plant subject to reduction roasting and attempts to define the expediency of magnetic separation of roasting production on the basis of the results of complex research. For this purpose, briquetted samples of red mud in the current production of the Ural Aluminium Plant are subjected to roasting in a weak reduction environment (a gas mix CO2 (95%) and Н2 (5%)) and the reduction environment (Н2 (100%)) at 810°C. The completed research study on red mud structure after heat treatment in reduction environments and analysis of similar research has shown that achieving effective magnetic separation will only be possible under conditions that develop physical and chemical impacts on the growth of crystals in the magnetic phases, which form during reduction roasting within the range of 800–1000°C.

The existence of alkalis in red mud represents danger for the technological process of agglomeration, especially for blast furnace smelting technology as it has harmful effects on the flameproof lining of the blast furnace.

In 2011, experts from the United Company RUSAL, together with scientists from "Uralpromenergoproyekt", Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences, Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences and the Moscow Institute of Steel and Alloys, have carried out a number of research projects on red mud and its properties with

**89**

**Table 2.**

Iron ore concentrate

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

the aim of creating technology for its complex processing, including projects on dealkalisation, dehydration, enrichment and extraction of rare earth metals. Results of research studies are based on the creation of trial experimental industrial plants for red mud processing by calculating the productivity of 200,000 tonnes of mud in

**No. Fe FeO CaO MgO SiO2 TiO2 Al2O3 MnO P2O5 SO3 R2O LC\*** Mud 1 28.36 5.88 21.32 0.63 9.24 4.14 12.35 0.30 0.60 0.90 0.76 10.30 Mud 2 27.80 5.79 20.9 0.8 9.85 4.06 11.9 0.35 0.31 0.36 — 11.00

The chemical composition of red mud in the current production of the Ural Aluminium Plant is given in **Table 1** (Mud 1), and alkaline-free red mud is listed

Sintering was carried out on the agglomerative cap of a 320 mm diameter, established in the JSC Uralmekhanobr laboratory. The structure of alkaline-free red

The structure of agglomerative burden for the agglomerative factory of JSC Kachkanarsky Mining and Processing Integrated Works is given in **Table 2** (LC—

of 3 m according to GOST 25471-82, granulometric composition of the received agglomerate was defined, an output of suitable, drum-type durability and an abradability in accordance with GOST 15137-77. Agglomerate sampling for all types of tests was carried out in accordance with GOST 26136-84. The metallurgical properties of agglomerate, reducibility and a durability indicator at reduction were defined in accordance with GOST 19575-84. Results of tests are given in **Tables 3** and **4**.

**Material Weight fraction (%)**

*Chemical composition of components of agglomerative burden.*

After carrying out sintering-ready agglomerate three times, dumped from a height

For production pellets, Kachkanarsky Mining and Processing Integrated Works concentrates are bentonite and red mud. The chemical composition of materials is shown in **Table 5** (LC—losses on calcination). The content of particles of class in concentrate makes less than 0.071 mm—90 and 100% in bentonite and red mud.

Limestone — — 1.39 53.2 0.32 0.71 — — — 42.4 Coke — — — — — — — 0.54 83.8 83.8 Ash of coke 6.13 1.08 48.0 8.02 1.96 24.4 0.32 1.34 — —

**Fe FeO SiO2 CaO MgO Al2O3 P S C LC**

62.1 28.1 3.6 1.06 2.06 2.44 <0.01 0.025 — 2.33

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

a year at the Ural Aluminium Plant.

after the above-stated plant (Mud 2).

mud is given in **Table 2**.

*\*LC—Losses on calcination.*

*Chemical composition of red mud (%).*

**Table 1.**

losses on calcination).

**3. Laboratory studies and industrial tests**


#### **Table 1.**

*Recovery and Utilization of Metallurgical Solid Waste*

Integrated Works leads to growth in the quality of the agglomerate and slightly influences indicators of blast furnace smelting; this means that enriching red mud additives in agglomerative production with subsequent blast furnace repartition is a perspective technology for their utilisation. As a positive influence of red mud additives to agglomerates, the increase in the content of MgO in the final slags with 9.1 to 11.2–11.5% is noted as a slight improvement to the negative influence of mud on properties of slags. The increase of magnesia in the final slags, especially when processing high-fluxed agglomerates, leads to increased stability in their phase structure, particularly regarding areas on the border of melilite and spinel slags displaced towards pure spinel, i.e. in areas of more stable temperatures in the beginning of crystallisation. Influence of the specified factor has allowed properties of slag to be saved at the required level—despite an increase in the content of alumina

in slag—and has weakened influence of red mud on its properties.

Work [9] studies the structure, thermal characteristics and composition of red mud in the current production of the Ural Aluminium Plant with the help of spectral methods (a mass fraction on solids: 46.7% Fe2О3, 12.8% Al2О3, 14.5% SiO2, 10.85% СаО, 4.7% ТiO2, 4.7% Na2O, 1.125% others). X-ray analysis is carried out on a diffractometer by X'Pert PRO (PANanalitical, the Netherlands) in monochromatic CuKa radiation. For the purpose of specification of the search for iron atoms in different minerals, samples of red mud have been investigated by a method of Mössbauer spectroscopy. In work MS-1104Em, a spectrometer with a source of Co57 in a rhodium matrix was used. The isomerous shift was relatively defined α-Fe. For high-quality determination of the sizes of mineral phases and distribution of elements in them, the samples of red mud have been studied on the electron microscope JXA-8100 (JEOL, Japan) with a power dispersive system, INCA Energy 400. Extant research of red mud structures shows that from the point of view of iron ore materials, the material represents a difficult system of dispersed and ultradispersed crystals of haematite surrounded by ferriferous phases in the form of a crystal phase of chamosite and amorphous iron-silica-alumina phases. Enrichment of such material through traditional means is represented as difficult

Work [10] establishes the basis of studying red mud structures in the current production of the Ural Aluminium Plant subject to reduction roasting and attempts to define the expediency of magnetic separation of roasting production on the basis of the results of complex research. For this purpose, briquetted samples of red mud in the current production of the Ural Aluminium Plant are subjected to roasting in a weak reduction environment (a gas mix CO2 (95%) and Н2 (5%)) and the reduction environment (Н2 (100%)) at 810°C. The completed research study on red mud structure after heat treatment in reduction environments and analysis of similar research has shown that achieving effective magnetic separation will only be possible under conditions that develop physical and chemical impacts on the growth of crystals in the magnetic phases, which form during reduction roasting within the

The existence of alkalis in red mud represents danger for the technological process of agglomeration, especially for blast furnace smelting technology as it has

In 2011, experts from the United Company RUSAL, together with scientists from "Uralpromenergoproyekt", Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences, Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences and the Moscow Institute of Steel and Alloys, have carried out a number of research projects on red mud and its properties with

harmful effects on the flameproof lining of the blast furnace.

**88**

to realise.

range of 800–1000°C.

*Chemical composition of red mud (%).*

the aim of creating technology for its complex processing, including projects on dealkalisation, dehydration, enrichment and extraction of rare earth metals. Results of research studies are based on the creation of trial experimental industrial plants for red mud processing by calculating the productivity of 200,000 tonnes of mud in a year at the Ural Aluminium Plant.

The chemical composition of red mud in the current production of the Ural Aluminium Plant is given in **Table 1** (Mud 1), and alkaline-free red mud is listed after the above-stated plant (Mud 2).

### **3. Laboratory studies and industrial tests**

Sintering was carried out on the agglomerative cap of a 320 mm diameter, established in the JSC Uralmekhanobr laboratory. The structure of alkaline-free red mud is given in **Table 2**.

The structure of agglomerative burden for the agglomerative factory of JSC Kachkanarsky Mining and Processing Integrated Works is given in **Table 2** (LC losses on calcination).

After carrying out sintering-ready agglomerate three times, dumped from a height of 3 m according to GOST 25471-82, granulometric composition of the received agglomerate was defined, an output of suitable, drum-type durability and an abradability in accordance with GOST 15137-77. Agglomerate sampling for all types of tests was carried out in accordance with GOST 26136-84. The metallurgical properties of agglomerate, reducibility and a durability indicator at reduction were defined in accordance with GOST 19575-84. Results of tests are given in **Tables 3** and **4**.

For production pellets, Kachkanarsky Mining and Processing Integrated Works concentrates are bentonite and red mud. The chemical composition of materials is shown in **Table 5** (LC—losses on calcination). The content of particles of class in concentrate makes less than 0.071 mm—90 and 100% in bentonite and red mud.


#### **Table 2.**

*Chemical composition of components of agglomerative burden.*

#### *Recovery and Utilization of Metallurgical Solid Waste*


**Table 3.**

*Results of tests on agglomerate sintering with additives of red mud (%).*


#### **Table 4.**

*Metallurgical properties of iron ore agglomerate when using red mud.*


#### **Table 5.**

*Chemical composition of burden components for receiving pellets with different contents of red mud (%).*

Heat treatment of dry pellets was carried out in the vertical tubular furnace with height of isothermal zone (100–120 mm). Characteristics of the crude and burned pellets are shown in **Tables 6**–**8** (1—pellets with 0.7% of bentonite, 2—pellets with 0.7% of bentonite and 2% red mud, 3—pellets with 0.7% of bentonite and 4 mass % red mud, and 4—pellets with 0.7 mass % of bentonite and 6 mass % red mud).

Trial tests of production of agglomerate were carried out in the conditions of JSC Kachkanarsky Mining and Processing Integrated Works. Results are shown in **Table 9**.

Trial tests of production of pellets were carried out in the conditions of JSC Kachkanarsky Mining and Processing Integrated Works GOK. Results are shown in **Tables 10**–**12** (1—0.22% of binding, 1% red mud; 2—0.22% of binder, 2% red mud; 3—binder 0.44%, 4—1% red mud without binder, 5—2% red mud without binder, and 6—0.44% binder).

**91**

**Table 7.**

*characteristics and chemical composition.*

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

**Binding additives Properties of pellets**

**Pressure (kg/ pellet)**

 0.7 — 6.87 1.15 4.0 1.0 2.81 0.7 2.0 7.0 1.25 4.2 1.0 2.06 0.7 4.0 6.85 1.15 4.5 1.0 1.84 0.7 6.0 7.0 1.36 4.5 1.0 1.72 — 2.0 6.34 1.13 2.9 0 0.57 — 6.0 6.9 1.31 3.6 1.0 1.0 0.35 6.0 7.0 1.32 3.9 1.0 1.55 1.0 6.0 7.0 1.88 7.4 1.0 3.45

*Strengthening characteristics of nonfluxed pellets with different contents of binding additives in the form of* 

**No. Heat treatment conditions Durability of** 

**Time lag at 1050°C (minutes)**

**(%) Part of** 

Middle 3 1270 3 317 2.92 Bottom — 1230 1 260 1.64 Average — — — 301 2.91

Middle 3 1270 3 365 2.83 Bottom — 1230 1 330 1.89 Average — — — 343 2.78

Middle 3 1270 3 376 2.2 Bottom — 1230 1 308 1.53 Average — — — 328 2.52

Middle 3 1270 3 303 1.93 Bottom — 1230 1 306 1.22 Average — — — 309 2.15

1 Top 5 1300 6 325 4.17

2 Top 5 1300 6 334 3.62

3 Top 5 1300 6 300 3.85

4 Top 5 1300 6 317 3.3

*Heat treatment conditions on air of nonfluxed pellets with additives of red mud, their strengthening* 

**Roast t (°C) τ (minutes)**

**(%)**

**Damp pellets Pressure** 

**Dropping (1 m, times)**

**burned pellets (kg/pellet)**

**Moisture pellet)**

**Dropping (3 m, times)**

**(kg/dry** 

**FeO** 

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

**Red mud (%)**

**Bentonite (%)**

**No. of test**

**Table 6.**

*bentonite and red mud.*

**layer**

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace DOI: http://dx.doi.org/10.5772/intechopen.80087*


#### **Table 6.**

*Recovery and Utilization of Metallurgical Solid Waste*

*Results of tests on agglomerate sintering with additives of red mud (%).*

*Metallurgical properties of iron ore agglomerate when using red mud.*

**GOST 15137-77 GOST** 

**Abradability (−0.5 mm, %)**

3 Specific capacity (t/(m2

**Durability (+5 mm, %)**

**Table 3.**

**Table 4.**

**Content of red mud (%)**

**No. Indicator/red mud (%) 0 1 2 3** 1 Durability (%) 68.73 72.93 67.07 67.73 2 Abrasiveness (%) 7.13 6.07 11.00 8.27

4 Output of suitable (%) 76.83 71.32 64.08 69.68

 68.7 7.1 65.2 36.5 1153–1266 72.9 6.1 73.7 27.4 1178–1334 67.1 11.0 69.6 31.5 1169–1313 67.7 8.27 69.0 32.1 1168–1309

**Material/element Fe FeO Fe2O3 SiO2 CaO MgO** Kachkanarsky concentrate 61.9 28.3 57.0 3.93 1.10 2.68 Bentonite 3.6 1.3 3.7 58.5 2.43 2.86 Red mud 27.7 5.79 33.14 7.24 19.9 0.74

Material/element Al2O3 TiO2 S LC ∑ Kachkanarsky concentrate 2.19 2.75 — 1.0 98.95 Bentonite 18.3 — — 5.0 92.09 Red mud 12.8 — 0.36 11.1 91.07

*Chemical composition of burden components for receiving pellets with different contents of red mud (%).*

**17212-84**

**Reducibility (%)**

hour)) 1.13 1.07 0.65 0.86

**GOST 19575-84**

**Durability by Linder**

**GOST 26517-85**

**Temperature range (°C)**

Heat treatment of dry pellets was carried out in the vertical tubular furnace with height of isothermal zone (100–120 mm). Characteristics of the crude and burned pellets are shown in **Tables 6**–**8** (1—pellets with 0.7% of bentonite, 2—pellets with 0.7% of bentonite and 2% red mud, 3—pellets with 0.7% of bentonite and 4 mass % red mud, and 4—pellets with 0.7 mass % of bentonite and 6 mass % red mud). Trial tests of production of agglomerate were carried out in the conditions of JSC Kachkanarsky Mining and Processing Integrated Works. Results are shown in

Trial tests of production of pellets were carried out in the conditions of JSC Kachkanarsky Mining and Processing Integrated Works GOK. Results are shown in **Tables 10**–**12** (1—0.22% of binding, 1% red mud; 2—0.22% of binder, 2% red mud; 3—binder 0.44%, 4—1% red mud without binder, 5—2% red mud without binder,

**90**

**Table 9**.

**Table 5.**

and 6—0.44% binder).

*Strengthening characteristics of nonfluxed pellets with different contents of binding additives in the form of bentonite and red mud.*


#### **Table 7.**

*Heat treatment conditions on air of nonfluxed pellets with additives of red mud, their strengthening characteristics and chemical composition.*


#### **Table 8.**

*Metallurgical properties of iron ore pellets when using alkaline-free red mud.*


**93**

**Table 12.**

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

**(basicity 2.1)**

TiO2 2.53 2.53 2.65 2.69 S 0.013 0.016 0.023 0.016

**Concentrate Binder Burden**

**Swelling ability (times)**

**Damp Dry +20 +15 +12 +10 +8 −8**

**More 5.0 mm Less 0.5 mm**

**Dissemination (%)**

**Moisture (%) Plasticity (times) Durability (kg/pellet) Granulometric structure (%)**

 8.0 5.1 1.23 3.84 13.5 40.8 21.8 18.5 4.2 1.2 8.85 5.8 1.46 4.0 4.2 39.1 46.0 8.8 1.6 0.3 8.85 9.1 1.3 5.0 1.5 30.2 47.6 15.9 3.2 1.6 9.35 13.8 1.06 1.37 0.0 12.6 19.7 24.9 36.1 6.7 9.55 4.3 0.7 1.54 1.9 10.3 20.8 32.0 29.0 6.0 8.8 6.8 1.12 3.31 1.3 35.0 45.0 12.5 5.0 1.2

**Compressive strength (kg/pellet) Laboratory mill FeO, %**

 231.4 96.2 2.5 2.7 245.2 97.0 2.7 2.5 211.0 98.5 1.4 2.0 251.7 96.0 3.0 2.3 257.6 97.5 2.5 2.1 255.0 97.0 2.0 3.3

 9.3 95.4 4.1 93.2 7.6 9.15 95.5 9.3 95.4 4.1 93.2 7.6 9.45 95.5 9.3 95.4 — — — — — 8.95 94.2 — — — 9.0 93.6 8.95 94.2 — — — 8.95 93.4 — — — — — — —

**Fe 54.0% (basicity 1.9)**

> **Moisture (%)**

**Fe 54.0% (basicity 1.8)**

**Dissemination (%)**

**Experience condition/burden Base Fe 53.3%** 

**No. Burden materials**

**No. Quality of damp pellets**

**No. Burned pellets**

**Moisture (%)**

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

**Dissemination (%)**

*The industrial test results of burden materials.*

*Test results of agglomerate production.*

**Moisture (%)**

**Table 9.**

**Table 10.**

**Table 11.**

*The industrial test results of pellets.*

*The industrial test results of burned pellets.*

#### *The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace DOI: http://dx.doi.org/10.5772/intechopen.80087*


#### **Table 9.**

*Test results of agglomerate production.*


#### **Table 10.**

*The industrial test results of burden materials.*


#### **Table 11.**

*The industrial test results of pellets.*


#### **Table 12.**

*The industrial test results of burned pellets.*

**92**

*Recovery and Utilization of Metallurgical Solid Waste*

**Red mud (%)**

**Bentonite (%)**

Mechanical durability

Granulometric structure (%):

Content in agglomerate (%)

**Table 8.**

**No. Binding additives Properties of pellets**

**Pressure (kg/pellet)**

 0.7 — 6.70 1.15 4.0 1.0 2.26 301 0.7 2.0 6.75 1.15 4.2 1.0 2.06 343 0.7 4.0 6.73 1.10 4.5 1.0 1.74 328 0.7 6.0 6.70 1.10 4.6 1.0 1.72 309

**(%)**

*Metallurgical properties of iron ore pellets when using alkaline-free red mud.*

**Experience condition/burden Base Fe 53.3%** 

**Damp pellets Pressure** 

**Dropping (1 m, times)**

> **Fe 54.0% (basicity 1.9)**

**Moisture pellet)**

**Dropping (3 m, times)**

**(basicity 2.1)**

Concentrate (kg) 15.0 15.0 15.00 15.00 Red mud (kg) — 1.10 1.15 1.25 Red mud (%) — 7.00 7.70 8.30 Limestone (kg) 2.85 2.86 2.48 2.29 Fuel (kg) 1.00 1.00 1.00 1.00 Backstock (kg) 6.00 6.00 6.00 6.00 Water (l) 2.40 2.40 2.4 2.15 Height of layer (mm) 280 280 280 280 Moisture after pelletisation (%) 7.80 7.6 8.4 7.50 Moisture after heating (%) 7.00 7.1 8.0 7.0 Burden temperature (°С) 80.0 81.0 81.0 81.0 Pelletisation degree (%) 52.8 43.4 59.6 55.8

+5 mm (%) 56.8 49.9 58.8 59.8 −0.5 mm (%) 5.2 9.1 6.6 8.0

+40 mm 1.0 2.6 3.5 4.2 +25 mm 8.0 4.2 10 12.6 +10 mm 36.1 24.2 33.5 40 +5 mm 26.7 24.9 24.9 15.0 −5 mm 28.2 44.1 28.1 28.2 C (burden) (%) 4.49 4.66 3.89 3.72 Fe (agglomerate) (%) 53.9 53.3 53.9 54.0 FеО (agglomerate) (%) 9.1 8.17 10.68 9.29 Basicity (shares of units) 2.01 2.06 1.98 1.78

C 0.11 0.22 0.36 0.11 V2O5 0.51 0.48 0.47 0.49 MgO 2.94 2.73 2.48 2.68 Al2O3 2.38 2.64 3.43 3.10

**(kg/dry pellet)**

**Pressure (kg/roasting** 

**Fe 54.0% (basicity 1.8)**

## **4. Calculated research**

According to the received properties of experimental agglomerates in carrying out laboratory research with an introduction in burden of blast furnace, 1 and 3% of red mud have been calculated. Results of comparative calculations by means of mathematical models [11] are shown in **Table 13** [12].

The analysis of results shows that positive improvement in durability of the agglomerate when using red mud is practically levelled by a decrease in the general content of iron in the burden. To save the content of iron at the level of its base values in the burden of blast furnace smelting, it is possible to use several options: a decrease in basicity of the high-basicity agglomerate, along with a simultaneous raise in the relation of CaO/SiO2 in Staflux, the addition of a new iron-containing component in the agglomerative burden (scale), and the replacement of part of the bentonite in mud in the production of pellets.


**95**

**5. Conclusion**

**Table 13.**

ing as a bentonite substitute (pellets).

Laboratory tests, calculations, research, and industrial tests have confirmed the possibility of red mud utilisation as a ferriferous additive (agglomerate) and bind-

*Calculated indicators of blast furnace smelting of agglomerate with additives of red mud.*

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

**measure**

Extent of use H2 Shares of units 0.464 0.457 0.460

Si % 0.10 0.10 0.10 Ti % 0.15 0.15 0.5 Mn % 0.327 0.329 0.346 Cr % 0.105 0.106 0.112 V % 0.407 0.415 0.436 S % 0.025 0.018 0.021 C % 4.666 4.666 4.666 P % 0.051 0.052 0.054 Fe % 94.17 94.16 94.11 Temperature of metal °C 1450 1450 1450 Slag exit kg/t pig iron 347.0 359.0 373.0

CaO % 34.20 34.82 33.34 MgO % 9.34 9.58 9.77 SiO2 % 27.97 25.27 25.84 Al2O3 % 15.83 16.79 17.34 TiO2 % 10.38 11.32 11.07 MnO % 0.41 0.41 0.43 Cr2O3 % 0.05 0.05 0.06 V2O5 % 0.25 0.23 0.26 S % 0.80 0.77 0.76 R2O % 0.57 0.54 0.91 FeO % 0.61 0.61 0.60 CaO/SiO2 1.22 1.38 1.29

**Base Red mud** 

C 2006 2005 2012

**(1%)**

**Red mud (3%)**

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

**Indices Unit of** 

Theoretical temperature of burning °

Composition of pig iron:

Composition of slag


#### *The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace DOI: http://dx.doi.org/10.5772/intechopen.80087*

#### **Table 13.**

*Recovery and Utilization of Metallurgical Solid Waste*

mathematical models [11] are shown in **Table 13** [12].

bentonite in mud in the production of pellets.

**Indices Unit of** 

Consumption of natural gas m3

Temperature °

Consumption m3

Temperature °

exit m3

According to the received properties of experimental agglomerates in carrying out laboratory research with an introduction in burden of blast furnace, 1 and 3% of red mud have been calculated. Results of comparative calculations by means of

The analysis of results shows that positive improvement in durability of the agglomerate when using red mud is practically levelled by a decrease in the general content of iron in the burden. To save the content of iron at the level of its base values in the burden of blast furnace smelting, it is possible to use several options: a decrease in basicity of the high-basicity agglomerate, along with a simultaneous raise in the relation of CaO/SiO2 in Staflux, the addition of a new iron-containing component in the agglomerative burden (scale), and the replacement of part of the

**measure**

Useful volume of furnace m3 2200 2200 2200 Productivity t/day 6241 6235 6141 General consumption of ore kg/t pig iron 1712.9 1728.8 1742.2 Pellets kg/t pig iron 907.8 916.3 923.4 Agglomerate, red mud (0%) kg/t pig iron 650.9 0.0 0.0 Agglomerate, red mud (1%) kg/t pig iron 0.0 657.0 0.0 Agglomerate, red mud (3%) kg/t pig iron 0.0 0.0 662.0 Staflux kg/t pig iron 154.2 155.6 156.8 Coke kg/t pig iron 396.6 394.5 397.9 Dust exit kg/t pig iron 39.1 39.4 39.7

Moisture g/m3 8 8 8 Oxygen % 28.7 28.7 28.7

CO % 23.6 23.1 23.1 CO2 % 21.9 22.4 22.3 H2 % 9.6 9.5 9.5 N2 % 44.9 45.1 45.2 Extent of use CO Shares of units 0.493 0.481 0.480

**Base Red mud** 

/t pig iron 125.2 125.2 125.2

C 1206 1206 1206

/t pig iron 925.0 924.7 936.7

C 173.9 176.7 189.5

/t pig iron 1474.5 1469.1 1483.7

**(1%)**

**Red mud (3%)**

**4. Calculated research**

**94**

Blast:

Top gas:

*Calculated indicators of blast furnace smelting of agglomerate with additives of red mud.*

## **5. Conclusion**

Laboratory tests, calculations, research, and industrial tests have confirmed the possibility of red mud utilisation as a ferriferous additive (agglomerate) and binding as a bentonite substitute (pellets).

## **Acknowledgements**

This research study was supported by the State Task of Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, the Project No. 0396-2015-0081.

## **Conflict of interest**

The author declares no conflict of interest.

## **Thanks**

The author expresses gratitude to Leopold Leontyev, Galina Gazaleeva, Evgeniy Bratygin, Dmitriy Volkov and Yuriy Chesnokov.

## **Author details**

Andrey Dmitriev Institute of Metallurgy of Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia

Address all correspondence to: andrey.dmitriev@mail.ru

© 2018 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**97**

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace*

The Bulletin Ferrous Metallurgy.

[9] Podgorodetzkij G, Gorbunov V, Korovushkin V, Panov А. Red mud of ural aluminium works flow-line production structure study. Ferrous Metallurgy. 2012;**52**(2):24-29. (In Russ.). DOI: 10.17073/0368-0797-2012-3-24-29

[10] Podgorodetzkij G, Gorbunov V, Korovushkin V, Panov А. Red mud of ural aluminium works flow-line production structure study after thermal treatment in reduction gaseous atmosphere. Ferrous Metallurgy. 2012;**55**(5):8-14. (In Russ.). DOI: 10.17073/0368-0797-2012-5-8-14

[11] Chentsov A, Chesnokov Y, Shavrin S. Balance Logic-Statistical Model of Blast Furnace Process. Yekaterinburg: Russian Academy of

[12] Yu C, Leontyev L, Sheshukov O, Dmitriev A, Vitkina G, Marshuk L. Pyrometallurgical processing of waste of aluminum production. Bulletin of Magnitogorsk state technical university named after G.I. Nosov.

Sciences; 2003. 164 p

2013;**3**(43):19-22

2013;**1**:30-34

*DOI: http://dx.doi.org/10.5772/intechopen.80087*

[1] Utkov V. Prospects of development of ways of processing red mud in the USSR and abroad. Moscow: Tsvetmetinformatsiya; 1981. 31 p

[2] Shmorgunenko N, Korneyev V.

[3] Trushko V, Utkov V, Bazhin V. Urgency and Possibilities of Complete Processing of Red Mud of Aluminous Productions. Notes of Mining Institute. 2017;**227**:547-553. DOI: 10.25515/

[4] Trushko V, Utkov V, Sivushov A. Reducing the environmental impact of blast furnaces by means of red mud from alumina production. Steel in Translation. 2017;**48**(8):576-578. DOI:

[5] Utkov V, Leontyev L, Yakovlev M. Reduction of the content of alkalis, sulfur and phosphorus at thermal okuskovaniye red shlama. Steel.

[6] Gazaleeva G, Orlov S, Sopina N,

Vishnyakov S, Klimentenok G, Petrov S, Kotov O. Influence of material structure of red mud on technological indicators of their enrichment. In: Proceedings of the Fourth International Congress Nonferrous metals-2012. Krasnoyarsk; 2012.

[7] Gazaleeva G, Mushketov A, Sopina N, Vlasov I, Uporov S. Selection of the scheme of enrichment of red mud. Non-Ferrous

Dmitrieva E, Kalugin Y. Use enriched red mud by production of high-fluxed agglomerate for the purpose of their further processing in blast furnaces.

[8] Bratygin E, Gazaleeva G,

Mushketov A, Anashkin V,

10.3103/S0967091217080149

1982. Moscow. 129 p

PMI.2017.5.547

2013;**2**:12-13

pp. 128-130

Metals. **7**:46-50

Complex processing and use of moldboard mud of aluminous production. Metallurgy.

**References**

*The Comprehensive Utilisation of Red Mud Utilisation in Blast Furnace DOI: http://dx.doi.org/10.5772/intechopen.80087*

## **References**

*Recovery and Utilization of Metallurgical Solid Waste*

The author declares no conflict of interest.

Bratygin, Dmitriy Volkov and Yuriy Chesnokov.

This research study was supported by the State Task of Institute of Metallurgy

The author expresses gratitude to Leopold Leontyev, Galina Gazaleeva, Evgeniy

of the Ural Branch of the Russian Academy of Sciences, the Project No.

**Acknowledgements**

0396-2015-0081.

**Thanks**

**Conflict of interest**

**96**

**Author details**

Andrey Dmitriev

Ekaterinburg, Russia

provided the original work is properly cited.

© 2018 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

Institute of Metallurgy of Ural Branch of Russian Academy of Sciences,

Address all correspondence to: andrey.dmitriev@mail.ru

[1] Utkov V. Prospects of development of ways of processing red mud in the USSR and abroad. Moscow: Tsvetmetinformatsiya; 1981. 31 p

[2] Shmorgunenko N, Korneyev V. Complex processing and use of moldboard mud of aluminous production. Metallurgy. 1982. Moscow. 129 p

[3] Trushko V, Utkov V, Bazhin V. Urgency and Possibilities of Complete Processing of Red Mud of Aluminous Productions. Notes of Mining Institute. 2017;**227**:547-553. DOI: 10.25515/ PMI.2017.5.547

[4] Trushko V, Utkov V, Sivushov A. Reducing the environmental impact of blast furnaces by means of red mud from alumina production. Steel in Translation. 2017;**48**(8):576-578. DOI: 10.3103/S0967091217080149

[5] Utkov V, Leontyev L, Yakovlev M. Reduction of the content of alkalis, sulfur and phosphorus at thermal okuskovaniye red shlama. Steel. 2013;**2**:12-13

[6] Gazaleeva G, Orlov S, Sopina N, Mushketov A, Anashkin V, Vishnyakov S, Klimentenok G, Petrov S, Kotov O. Influence of material structure of red mud on technological indicators of their enrichment. In: Proceedings of the Fourth International Congress Nonferrous metals-2012. Krasnoyarsk; 2012. pp. 128-130

[7] Gazaleeva G, Mushketov A, Sopina N, Vlasov I, Uporov S. Selection of the scheme of enrichment of red mud. Non-Ferrous Metals. **7**:46-50

[8] Bratygin E, Gazaleeva G, Dmitrieva E, Kalugin Y. Use enriched red mud by production of high-fluxed agglomerate for the purpose of their further processing in blast furnaces.

The Bulletin Ferrous Metallurgy. 2013;**1**:30-34

[9] Podgorodetzkij G, Gorbunov V, Korovushkin V, Panov А. Red mud of ural aluminium works flow-line production structure study. Ferrous Metallurgy. 2012;**52**(2):24-29. (In Russ.). DOI: 10.17073/0368-0797-2012-3-24-29

[10] Podgorodetzkij G, Gorbunov V, Korovushkin V, Panov А. Red mud of ural aluminium works flow-line production structure study after thermal treatment in reduction gaseous atmosphere. Ferrous Metallurgy. 2012;**55**(5):8-14. (In Russ.). DOI: 10.17073/0368-0797-2012-5-8-14

[11] Chentsov A, Chesnokov Y, Shavrin S. Balance Logic-Statistical Model of Blast Furnace Process. Yekaterinburg: Russian Academy of Sciences; 2003. 164 p

[12] Yu C, Leontyev L, Sheshukov O, Dmitriev A, Vitkina G, Marshuk L. Pyrometallurgical processing of waste of aluminum production. Bulletin of Magnitogorsk state technical university named after G.I. Nosov. 2013;**3**(43):19-22

## *Edited by Yingyi Zhang*

At present, a lot of metallurgical solid wastes have not been timely and effectively recycled, resulting in serious problems of environmental pollution and waste of resources. As a result, large-scale comprehensive utilization technologies have been initiated, including slag dry granulation technology, steel slag cement technology, slag wool technology, slag waste heat recovery technology, etc. The comprehensive utilization of metallurgical solid waste has attracted worldwide attention. It is an effective way to improve the utilization efficiency of resources and the added value of products by using scientific metallurgical solid waste recycling methods. This book intends to provide the reader with a comprehensive overview of metallurgical solid wastes comprehensive utilization technology. The comprehensive utilization methods of four representative metallurgical solid wastes are emphatically described, such as blast furnace slag, steel slag, tailings and metallurgical dust.

Published in London, UK © 2019 IntechOpen © Bogomil Mihaylov / Unsplash

Recovery and Utilization of Metallurgical Solid Waste

Recovery and Utilization of

Metallurgical Solid Waste

*Edited by Yingyi Zhang*