Process for the beneficiation of sulfide minerals

Details Process for the beneficiation of sulfide minerals Process for the beneficiation of sulfide minerals

2006-03-14

2006-03-14

Lithgow, Thomas M. (Department: 1724)

Classifying, separating, and assorting solids

Fluid suspension

Liquid

Reexamination Certificate

active

07011216

ABSTRACT:
Froth flotation processes, useful for beneficiating base metal mineral values from metal sulfide ore, utilize a collector comprising an N-butoxycarbonyl-O-alkylthionocarbamate selected from the group consisting of N-butoxycarbonyl-O-methylthionocarbamate, N-butoxycarbonyl-O-ethylthionocarbamate, N-butoxycarbonyl-O-propylthiononocarbamate, N-butoxycarbonyl-O-butylthionocarbamate, N-butoxycarbonyl-O-pentylthionocarbamate, and N-butoxycarbonyl-O-hexylthionocarbamate.

REFERENCES:
patent: 4584097 (1986-04-01), Fu et al.
patent: 6732867 (2004-05-01), Magliocco et al.
patent: 6820746 (2004-11-01), Magliocco et al.

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