C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/305, 53/375,
C07D 235/20 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C07D 233/54 (2006.01) C07D 487/14 (2006.01) C22B 3/36 (2006.01)
Patent
CA 1335376
Metal values are extracted from aqueous solutions containing halide or pseudohalide anion using 1,1'- substituted 2,2'-biimidazole or bibenzimidazole compounds. Useful for the solvent extraction of zinc and copper from chloride leach solutions.
501959
Devonald David Phillip
Nelson Anthony John
Quan Peter Michael
Stewart David
Avecia Limited
Marks & Clerk
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