Removal of apatite gangue

B - Operations – Transporting – 03 – D

Patent

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361/17, 361/26

B03D 1/008 (2006.01) B03D 1/02 (2006.01)

Patent

CA 1287414

6530-436 ABSTRACT OF THE INVENTION A beneficiation reagent is provided which is the half-ester reaction product of a short-chain dicarboxylic acid source, such as maleic anhydride, and a saturated, aliphatic, monohydric alcohol containing from eight to thirteen carbon atoms, preferably ten carbon atoms. This reagent is added neat to a water-slurry of iron ore concentrate in an amount of from about 0.1 to about 0.7 pounds/ton.

536847

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