B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
361/24
B03D 1/12 (2006.01) B03D 1/012 (2006.01)
Patent
CA 1270076
ABSTRACT This invention concerns a froth flotation process for selectively recovering nonferrous metal containing sulfide minerals or sulfidized metal con- taining oxide minerals from ores. More particularly, this invention concerns a process for recovering metal containing sulfide minerals or sulfidized metal con- taining oxide minerals from an ore which comprises subjecting the ore, in the form of an aqueous pulp, to a froth flotation process in the presence of a flota- ting amount of a flotation collector wherein the col- lector has a hydrocarbon containing one or more mono- sulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbon atoms, the total carbon content of the hydro- carbon portion of the collector is such that the collec- tor has sufficient hydrophobic character to cause the metal containing sulfide mineral or sulfidized metal containing oxide mineral particles to be driven to the air/bubble interface, under conditions such that the metal containing sulfide mineral or sulfidized metal containing oxide mineral is recovered in the froth. 33,740-F
501884
Hansen Robert D.
Klimpel Richard R.
Strojny Edwin J.
Smart & Biggar
The Dow Chemical Company
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