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US 4,822,483 AGranted
Collector compositions for the froth flotation of mineral values
AssigneeThe Dow Chemical Company
InventorsRichard R. Klimpel, Robert D. Hansen
Life of this patent
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Abstract
A collector composition for use in froth flotation processes comprises two collectors. One of the collectors is preferably an N-(hydrocarbyl)-alpha, omega-alkanediamine, an (omega-aminoalkyl) hydrocarbon amide or mixture thereof. The second collector is a thiocarbonate, a thionocarbamate, a thiophosphate, thiocarbinilide, thiophosphinate, mercaptan, xanthogen formate, xanthic ester or mixture thereof. The collector composition floats a broad range of metal-containing minerals.
Claims25
A composition comprising
- (a) a compound corresponding to the formula:
- [R.sup.1 --X--R--.sub.n Q]
- R.sup.1 --X--R--.sub.n N(R.sup.2).sub.2
- wherein --R--.sub.n is ##STR14## each R' and R" is independently hydrogen, methyl or ethyl;
- y+p+m=n;
- n is an integer from 1 to 6;
- y and m are independently 0 or 1;
- and y+m=0 or 1;
- p is an integer from 1 to 6 and each moiety can occur in random sequence;
- R.sup.1 is a C.sub.1-22 hydrocarbyl or a C.sub.1-22 substituted hydrocarbyl;
- each R.sup.2 is independently hydrogen, a C.sub.1-22 hydrocarbyl or C.sub.1-22 substituted hydrocarbyl;
- and --X-- is ##STR15## R.sup.3 is hydrogen, a C.sub.1-22 hydrocarbyl or a C.sub.1-22 substituted hydrocarbyl;
- and
- (b) a thiol compound selected from the group consisting of a thiocarbonate, thionocarbamate, thiocarbanilide, thiophosphate, thiophosphinates, mercaptan, xanthogen formate, a xanthic ester and mixtures thereof.
11 more elements
Dependencies are inferred from the claim text.