Silica depressant in froth flotation of sulfide ores

Details Silica depressant in froth flotation of sulfide ores Silica depressant in froth flotation of sulfide ores

B - Operations, Transporting

03

D

361/3

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

Patent

CA 1278109

COMINCO LTD. SILICA DEPRESSANT IN FROTH FLOTATION OF SULFIDE ORES ABSTRACT Certain water dissipatable polyester materials containing ether groups and metal sulfonate groups are useful as depressants for siliceous gangue in the froth flotation separation of zinc sulfide concentrates from complex ores containing, minerals of other metals such as lead and iron, as well as various silicon compounds. The polyester materials are effective in amounts ranging from about 0.03 to about 1.5 kg/tonne of ore feed. Zinc rougher concentrates when conditioned with the depressant yields zinc cleaner concentrates containing less than about 1.5% silica without the need for extensive regrinding of the rougher concentrate. Particularly useful polyester material is prepared from an acid component of from about 80 to 85 mole % isophthalic acid with the remainder comprising mainly 5-sodiosulfoisophthalic acid, and a diol component of from about 50 to 60 mole % diethylene glycol with the remainder comprising mainly 1.4- cyclohexanedimethanol.

534466

Affiliated with

Also associated with

Rating

Silica depressant in froth flotation of sulfide ores does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silica depressant in froth flotation of sulfide ores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silica depressant in froth flotation of sulfide ores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1276962