PROCESS FOR RECOVERING CARNALLITE AND SYLVITE BY ELECTROSTATIC SEPARATION FROM CARNALLITE-CONTAINING CRUDE SALTS

摘要

A description is given of a three-stage electrostatic separation processconsisting of a rock salt separation stage (a), a potash/kieserite separationstage (b) and a secondary potash separation stage (c), wherein the residualfraction from the secondary potash separation (c) is returned to thepotash/kieserite separation stage (b) and thus a substantial improvement in theoverall separation result is achieved.