PROCESS FOR DEWATERING MINERAL TAILINGS BY THE TREATMENT OF THESE TAILINGS WITH A SOLUTION COMPRISING AT LEAST ONE POLYMER AND AT LEAST ONE SALT

摘要

The present invention relates to a process of dewatering a suspension comprising particulate solids dispersed in an aqueous liquid, said particulate solids comprises clay and mineral parti- cles of size below 50 µm, which process comprises the steps of, (a) Addition of at least one polymer and of at least one salt solution to the suspension; and (b) Dewatering the polymer treated suspension of step (a).