Methods of reducing precipitation from acid solutions

Details Methods of reducing precipitation from acid solutions Methods of reducing precipitation from acid solutions

1992-06-08

1993-11-23

Geist, Gary

Compositions

Leather or fur treating

252 8553, 166307, E21B 4327

Patent

active

052641414

ABSTRACT:
Methods and compositions for reducing the precipitation of metal sulfides from acid solutions are provided. The methods basically comprise reducing the precipitation of metal sulfide compounds from an aqueous acid solution when the solution dissolves sulfide and metal ions by combining at least one oxime with the acid solution in an amount whereby the oxime preferentially reacts with sulfide ions in the solution and thereby prevents the sulfide ions from reacting with metal ions therein.

REFERENCES:
patent: 3854959 (1974-12-01), Costain et al.
patent: 3876371 (1975-04-01), Costain et al.
patent: 4633949 (1987-01-01), Crowe
patent: 4888121 (1989-12-01), Dill et al.

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