Method of beneficiating phosphate ores

Details Method of beneficiating phosphate ores Method of beneficiating phosphate ores

B - Operations, Transporting

02

C

53/368

B02C 23/18 (2006.01) B03B 7/00 (2006.01) B03D 1/02 (2006.01)

Patent

CA 1113259

ABSTRACT A method is disclosed for beneficiating a phos- phate ore matrix containing apatite, siliceous gangue, and an alkaline earth metal carbonate mineral impurity which includes the steps of washing and sizing the ore, subjecting it to a gravity separation, a conventional "double float" flotation, and a phosphate-carbonate flotation separation to provide a phosphate ore concen- trate having a high BPL content and a relatively low concentration of alkaline earth metal carbonate mineral impurity.

321782

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