Depressants for froth flotation

Details Depressants for froth flotation Depressants for froth flotation

1985-07-19

1987-04-14

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 114

Patent

active

046576690

ABSTRACT:
The invention concerns the use of 5-hydroxy-3-thiazolidine-2-thiones of the structure I ##STR1## where R.sub.1 =(CHOH).sub.m, R.sub.2 =(CHOH).sub.n where (m+n)=0 to 6, and R.sub.3 is alkyl or hydroxy-alkyl as depressants in the flotation of mixtures of base metal minerals, particularly those containing molybdenum, copper, lead, zinc; and to flotation processes using these compounds.

REFERENCES:
patent: 4268380 (1981-05-01), Shaw
patent: 4329223 (1982-05-01), Ramordai et al.
patent: 4416770 (1983-11-01), Bresson

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