Ore dressing process

Details Ore dressing process Ore dressing process

B - Operations, Transporting

03

D

361/17

B03D 1/02 (2006.01) B03D 1/016 (2006.01)

Patent

CA 1108780

ABSTRACT OF THE DISCLOSURE A froth flotation ore dressing process comprising forming a pulp of a phosphate-bearing ore; adding to the pulp a gangue depressant material comprising a guar gum ether of the formula R-O-G wherein R is an acyclic hydrocarbon radical containing up to 6 carbon atoms or a cyclic hydrocarbon radical, O is oxygen, and G is the remainder of the guar moeity, of which one or more hydro- gen atoms of the 9 hydroxyl groups thereof have been substituted by the radical R; and thereafter subjecting the pulp to froth flotation to obtain a superior grade of phosphate than obtained in the absence of the guar gum ether.

317400

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