Triazolopyrimidine extractants

Details Triazolopyrimidine extractants Triazolopyrimidine extractants

1985-12-09

1987-06-23

Doll, John

Chemistry of inorganic compounds

Extracting, leaching, or dissolving

423 24, 423100, 423139, 423DIG14, 75101BE, 75117, 544224, 544225, 544251, 544263, 210681, 210685, 210688, B01D 1100

Patent

active

046751726

ABSTRACT:
Metal values, particularly copper values, are extracted from aqueous solutions containing halide or pseudohalide anion using 6,7 substituted triazolopyrimidine wherein the 6-substituent is a group --CO--OR1 where R1 is a hydrocarbyl group containing from 1 to 35 carbon atoms, preferably an alkyl group and wherein the 7-substituent (R2) is hydrogen or a hydrocarbyl group containing from 1 to 35 atoms wherein R1 and R2 taken together contain a total of from 5 to 35 saturated carbon atoms.

REFERENCES:
patent: 4007189 (1977-02-01), Sato et al.
patent: 4298734 (1981-11-01), Temple, Jr.
patent: 4401629 (1983-08-01), Hanock et al.
patent: 4404380 (1983-09-01), Temple, Jr.
patent: 4581220 (1986-04-01), Nelson et al.

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