B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
361/24
B03D 1/012 (2006.01) B03D 1/014 (2006.01)
Patent
CA 1299777
ABSTRACT A froth flotation promotor and/or collector for the recovery of metals from the platinum-group which comprises one or more compounds from the group of compounds including trithiocarbonates or phosphates; alkyl derivatives thereof having 2 to 16 carbon atoms; and the ammonium or alkali me tal salts of any of these compounds. The sodium salt of isopropyl trithiocarbonate was found to be particularly use- ful as promotor and/or collector. A method of utilizing these compounds in a froth flotation process for the recov- ery of platinum-group metals is also disclosed. A further feature of the invention is a froth flota- tion collector for the recovery of a metal valuable compris- ing a combination of at least two different compounds of which one is a mono alkyl TTC in which the alkyl group can be linear or branched and can have 2 to 16 carbon atoms, and/or the ammonium and/or alkali metal salts of any of these compounds, and the other compound is at least one com- pound of the group of compounds including a TTC; DTC; DTP; mercaptan (except where the metal valuable is a PGM); the alkyl derivatives of any of these compounds in which the al- kyl group can be linear or branched and can have 2 to 16 carbon atoms; MBT (except where the metal valuable is copper or iron); the ammonium and/or alkali metal salt of any of the aforesaid compounds.
540395
Davidtz John C.
Klein Elias M.
Slabbert Wickus
Davidtz John C.
Klein Elias M.
Montan Chemicals (proprietary) Limited
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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