Phase desliming and concentration of potash ores

Claim 1

IN A METHOD OF PREPARING SYLVINITE ORE HAVING HALITE AND SYLVITE COMPONENTS AND CLAY SLIMES CONTAMINANTS FOR ORE DRESSING TREATMENTS, THE STEPS OF FORMING A SLURRY OF THE SYLVINITE ORE CHARGE IN A BRINE CARRIER WHICH IS A SATURATED NACL-KCL SOLUTION, SUBJECTING THE SLURRY TO A SCRUBBING ACTION FOR LIBERATING THE SLIMES, INTRODUCING A SURFACE ACTIVE REAGENT INTO SAID SLURRY PASSING FROM SAID SCRUBBING ACTION IN A QUANTITY WHICH RENDERS THE CLAY HYDROPHOBIC AND OLEOPHILIC WITHOUT RENDERING THE SYLVITE OLEOPHILIC, AT A NEXT STAGE INTRODUCING AN OIL CARRIER INTO THE BRINE CONTAINING THE CLAY SO TREATED AND AGITATING THE RESULTING OIL AND BRINE MIXTURE, SAID OIL BEING INTRODUCED IN A QUANTITY SUFFICIENT TO FORM AN UPPER PHASE OF OIL AND CLAY AND A LOWER PHASE OF ORE AND BRINE, ALLOWING THE OIL AND CLAY IN THE BRINE TO SEPARATE INTO AN UPPER PHASE OF OIL AND CLAY AND A LOWER PHASE OF ORE AND BRINE, AND