Polycarboxylic acid derivatives and uses

Details Polycarboxylic acid derivatives and uses Polycarboxylic acid derivatives and uses

1983-03-30

1984-11-13

Lieberman, Paul

Compositions

Physical separation agents

Froth-flotation or differential adherence

260455B, C09K 300, C22B 100, C22B 300

Patent

active

044824807

ABSTRACT:
Mercapto polycarboxylic acids, especially the trithiocarbonate derivatives thereof and alkali metal salts, are employed as treating agents in mineral recovery operations.

REFERENCES:
patent: 1833740 (1931-11-01), Derby et al.
patent: 2449984 (1948-09-01), Gibbs
patent: 3464899 (1969-09-01), Chessin et al.
patent: 3796645 (1974-03-01), Fujita et al.
patent: 4329223 (1982-05-01), Ramadorai et al.
patent: 4425230 (1984-01-01), Andress et al.
30891 U.S. Ser. No. 387,393, filed 6-11-82, now abandoned.
31287 U.S. Ser. No. 489,846, filed 5-6-83, Bresson et al.
31075 U.S. Ser. No. 436,883, filed 10-26-82, Parlman et al.

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