Mixtures of alkyl xanthogen formates and dialkyl thionocarbamate

Details Mixtures of alkyl xanthogen formates and dialkyl thionocarbamate Mixtures of alkyl xanthogen formates and dialkyl thionocarbamate

1986-03-04

1988-03-08

Jiles, Henry R.

Compositions

Physical separation agents

Froth-flotation or differential adherence

558234, 558244, C09K 300, C07C15502, C07C16100

Patent

active

047298430

ABSTRACT:
The present invention provides a new collector for use in the froth flotation of metal values from their ores. The collector comprises a synergistic mixture of alkyl xanthogen alkyl formates and dialkyl thionocarbamates, and yields metal recoveries superior to that achieved with either collector alone. According to the present invention the novel collector for use in froth flotation comprises a mixture of alkyl xanthogen alkyl formates having the general formula: ##STR1## wherein R is a branched or straight chain alkyl substituent having 1 to 6 carbon atoms, and R' is selected from the class consisting of ethyl and methyl; and
dialkyl thionocarbamates having the general formula: ##STR2## wherein Y is a branched or straight chain alkyl substituent having 1 to 6 carbon atoms, and Y' is selected from the class consisting of ethyl and methyl.

REFERENCES:
patent: 3907854 (1975-09-01), Bolth et al.
patent: 4454051 (1984-06-01), Crozier

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