Recovery of indium by solvent extraction using...

C - Chemistry – Metallurgy – 22 – B

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C22B 3/38 (2006.01) C22B 58/00 (2006.01)

Patent

CA 2077601

TITLE OF THE INVENTION RECOVERY OF INDIUM BY SOLVENT EXTRACTION USING TRIALKYLPHOSPHINE OXIDES ABSTRACT OF THE INVENTION This invention relates to a process for the recovery of indium from aqueous acid solutions. More particularly, it concerns the use of a combination of a dialkyl phosphoric acid and a mixture of trialkyl phosphine oxides to extract indium from acidic sulphate leach liquors.

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