SORPTION OF COBALT ON ORGANIC AND INORGANIC INTERCALATED CLAYS

A Mexican moutmorillonite clay was intercalated on the one hand with a luminium or zirconium polyhydroxications, and on the other with two or ganic compounds. Radioactive cobalt was used to study the Co2+ sorptio n curves in the original and pillared clays. It was found that pillari ng in general does not favour the diffusion of cobalt between the laye rs specially the organic pillared clays. In equilibrium, the cobalt re tention reached the highest level, around 0.7 meq/g in the Zr pillared clay.