B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
361/15
B03D 1/02 (2006.01) B03B 7/00 (2006.01) B03D 1/002 (2006.01) B03D 1/004 (2006.01)
Patent
CA 1085519
"PROCESS FOR THE CONCENTRATION OF MINERAL BY FLOTATION PROCESS" ABSTRACT OF THE DISCLOSURE It is possible to concentrate the mineral wolframite by the flotation process. In this process, the ore is ground without using steel as a grinding medium. When steel is used as a grinding medium, the grade of the wolframite flotation concen- trate is much lower. The ground ore is then aerated or condi- tioned vigorously with 2.00 lbs/ton of hydrofluosilisic acid or hydrofluoric acid or lactic acid more or less for a certain time period, followed by further aeration or conditioning with a tung- sten flotation collector HoeF 1415 (a phosphoric acid based col- lector), R-765 or an emulsified fatty acid or the like. The aeration process aids the flotation of the coarser tungsten and decreases the consumption of the collector. The wolframite rougher concentrate is then upgraded by using hydrofluosilisic acid or hydrofluoric acid in successive cleaning stages. Des- liming the ground pulp prior to the addition of any reagents may enhance this flotation procedure.
295483
Goup Minier Sullivan Ltee/sullivan Mining Group Ltd.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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