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US 4,439,314 AGranted
Flotation reagents
AssigneePhillips Petroleum Company
InventorsRobert M. Parlman, Clarence R. Bresson
Life of this patent
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Abstract
A blend of certain xanthates with mercaptan/glycol combinations produce collector compositions which yield improved results in ore flotation.
Claims7
A composition useful in the collection of metal-containing substances via the froth flotation of ores containing then which comprises:
- (a) sodium isopropylxanthate,
- (b) n-dodecylmercaptan, and
- (c) at least one dispersant containing a polyalkylene glycol conforming to the general formula
- HO--(R.sup.2 --O).sub.x --R.sup.3
- where R.sup.2 is a branched or straight chain alkylene radical of about 3 to about 5 carbon atoms with the proviso that at least 2 carbon atoms separate the oxygen atoms, R.sup.3 is hydrogen, methyl, or ethyl, and x is an integer from about 6 to about 17.
2 more elements
Dependencies are inferred from the claim text.