Thelma B. Pavón Silva, Eduardo Campos, María Teresa Olguín
Se aplica el proceso de intercambio iónico con una zeolita natural obtenida en Taxco, Guerrero, México, para la remoción de Zn, Cd y Ni de soluciones acuosas. Para este proceso, el mineral se homoionizó con cloruro de sodio y posteriormente se puso en contacto con soluciones 0.01 N de sales de nitratos de Zn, Cd y Ni, durante 8 días.
The process which involves ionic exchange was applied with the use of a Mexican zeolitic mineral (Taxco-Guerrero) to remove Zn, Cd, and Ni from an aqueous solutions. Mineral zeoliticsamples in their sodium form were put in contact with Zn(NO3)2,Cd(NO3)2 and Ni(NO3)2 solutions of 0.01 N for 8 days. After the process of ionic exchange, the metallic elements were determined by Electron Microscopy (EDAX). In previous work, the mineral composition was indentified as a mixuture of clinoptilolite and heulandite of the Mexican zeolitic material. Palabras clave: zeolita, clinoptilolita, metales pesados
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