Beneficiation of heavy minerals from bituminous sands residues by dry screening

Abstract From the Canadian patent

BENEFICIATION OF HEAVY MINERALS FROM, BITUMINOUS SANDS RESIDUES BY DRY SCREENING" ABSTRACT OF THE DISCLOSURE, The titanium and zirconium-based minerals present in the first stage centrifuge tailings from the hot water process for extraction of bitumen from bituminous sands, may be concentrated by a dry screening process. The tailings are burned off to provide a dry essentially carbon-, free, mineral mixture. By screening the mixture into three streams of different particle size range silica and clays may, be rejected as coarse and fine materials respectively while, titanium and zirconium minerals may be concentrated in the intermediate stream. The titanium and zirconium concentrate stream …