Depressants for froth flotation

Details Depressants for froth flotation Depressants for froth flotation

C - Chemistry, Metallurgy

07

D

361/24, 260/310.

C07D 277/42 (2006.01) B03D 1/012 (2006.01) C22B 15/00 (2006.01) C22B 34/34 (2006.01)

Patent

CA 1189863

ABSTRACT OF DISCLOSURE The invention concerns the use of 5-hydroxy-3- thiazolidine-2-thiones of the structure I Image I where R1 = (CHOH)m, R2 = (CHOH)n where (m+n) = 0 to 6, and R3 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.

430704

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