Triazolopyrimidine extractants

Details Triazolopyrimidine extractants Triazolopyrimidine extractants

C - Chemistry, Metallurgy

07

D

53/375, 260/242.

C07D 487/04 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 11/00 (2006.01) C01G 51/00 (2006.01) C22B 3/36 (2006.01)

Patent

CA 1257260

ABSTRACT TRIAZOLOPYRIMIDINE EXTRACTANTS 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 or from 5 to 35 saturated carbon atoms.

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