Claims
- 1. In a process of using a sulphur-containing material as a collector in the flotation of a mineral selected from the group consisting of galena, chalcopyrite and blende, the improvement which comprises employing as the collector a dithioic acid of the formula
- RCS.sub.2 H
- in which R is alkyl or alkenyl, linear or branched, of 4 to 20 carbon atoms which does not contain sulphur, or the sodium, potassium or ammonium salts thereof.
- 2. The process of claim 1 in which R contains 6 to 18 carbon atoms.
- 3. The process of claim 1 in which the dithioic acid is selected from the group consisting of dithiomyristic, dithiopalmitic, dithiooleic acid and the sodium, potassium or ammonium salts thereof.
- 4. The process of claim 1 wherein the dithioacid is dithiopentanoic acid or the sodium, potassium or ammonium salt thereof.
- 5. The process of claim 1 in which the dithioic acid is dithiocapoic acid or the sodium, potassium or ammonium salt thereof.
- 6. The process of claim 1 wherein the dithioacid is dithiolauric acid or the sodium, potassium or ammonium salt thereof.
Priority Claims (1)
Number |
Date |
Country |
Kind |
81 07629 |
Apr 1981 |
FRX |
|
Parent Case Info
This is a division of Ser. No. 368,037, filed on Apr. 13, 1982, now U.S. Pat. No. 4,455,262.
US Referenced Citations (5)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2337199 |
Sep 1977 |
FRX |
2458319 |
Feb 1981 |
FRX |
275915 |
Oct 1970 |
SUX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
368037 |
Apr 1982 |
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