A chemically modified mica composite formed by heating a trioctahedral mica in an aqueous solution of sodium chloride having a concentration of at least 1 mole/liter at a temperature greater than 180 degrees Centigrade for at least 20 hours, thereby replacing exchangeable ions in the mica with sodium....http://www.google.fr/patents/US6114269?utm_source=gb-gplus-shareBrevet US6114269 - Process for preparing chemically modified micas for removal of cesium salts from aqueous solution
Process for preparing chemically modified micas for removal of cesium salts ...