Beneficiation of heavy minerals from bituminous sands...

Details Beneficiation of heavy minerals from bituminous sands... Beneficiation of heavy minerals from bituminous sands...

C - Chemistry, Metallurgy

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C10G 1/00 (2006.01) B03B 9/02 (2006.01) B07B 9/00 (2006.01) C10G 1/04 (2006.01) C22B 34/12 (2006.01) C22B 34/14 (2006.01)

Patent

CA 1088883

"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 may be advanced to high tension and magnetic separation steps known in conventional processing of heavy minerals, for further beneficiation.

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