Ore flotation method

Details Ore flotation method Ore flotation method

1984-02-13

1985-07-23

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 114

Patent

active

045307580

ABSTRACT:
The method of recovering copper from a copper-bearing ore which comprises froth flotation of the ore in alkaline circuit and in the presence of a phosphorodithio compound of the formula ##STR1## wherein X is hydrogen, alkali metal, or the ammonium radical and R is alkyl-substituted phenyl of from 6 to 14 carbon atoms having from 1 to 3 alkyl substituents and from 1 to 6 carbon atoms in each alkyl substituent. Sodium O,O-bis(isopropylphenyl) phosphorodithioate and O,O-bis(isopropylphenyl) phosphorodithoic acid are illustrative. The method is particularly useful with sulfide minerals, especially with copper sulfides and molybdenum sulfides.

REFERENCES:
patent: 1868192 (1932-07-01), Buchanan
patent: 1997280 (1935-04-01), Christmann et al.
patent: 2206284 (1940-07-01), Jayne
patent: 2620068 (1952-12-01), Allen et al.
patent: 3570772 (1971-03-01), Booth et al.
patent: 3925218 (1975-12-01), Zipperian et al.

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