Ore flotation method
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United States of America Patent
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Jul 23, 1985
Issued Date -
N/A
app pub date -
Feb 13, 1984
filing date -
May 17, 1982
priority date (Note) -
Expired
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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.
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