Recovery of petalite from ores containing feldspar minerals

Details Recovery of petalite from ores containing feldspar minerals Recovery of petalite from ores containing feldspar minerals

B - Operations, Transporting

03

D

B03D 1/02 (2006.01) B03D 1/002 (2006.01) B03D 1/01 (2006.01)

Patent

CA 2313666

A method for recovering petalite from a mixture comprising petalite and feldspar minerals comprises the steps of forming an aqueous slurry of the mixture and adding to the slurry a depressant selected from the group consisting of alkaline earth metal chlorides, alkali metal chlorides, and mixtures thereof. Next, a collector comprising a quaternary ammonium salt is added to the slurry. The slurry is then subjected to a froth flotation process and petalite that is substantially free of feldspar minerals is selectively recovered from the flotation process.

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