Improved recovery of platinum group metals and gold by...

Details Improved recovery of platinum group metals and gold by... Improved recovery of platinum group metals and gold by...

B - Operations, Transporting

03

D

B03D 1/014 (2006.01) B03D 1/012 (2006.01) B03D 1/02 (2006.01)

Patent

CA 2080285

Collector compositions for use in froth flotation processes for the beneficiation of gold, silver and platinum group values from base metal ores are disclosed. The collector compositions comprise at least one dithiophosphate compound of the formula: (see figure I) and at least one allylalkylthionocarbamate of the formula: (see figure II) wherein each R is, individually, a C2-C8 alkyl radical. The use of the collector combination provides excellent selective recovery of the gold, silver and platinum group metal values into froth flotation processes conducted under neutral to alkaline conditions.

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