Use of Porous no Metallic Minerals to Remove Heavy Metals, Precious Metals and Rare Earths, by Cationic Exchange

*Juan Hernandez-Avila, Edgar Omar Serrano-Mejía, Eleazar Salinas-Rodríguez, Eduardo Cerecedo-Sáenz, María Isabel Reyes-Valderrama, María del Pilar Gutiérrez-Amador and Ventura Rodríguez-Lugo*
