Method for back extraction of indium from organic solvent phase

Details Method for back extraction of indium from organic solvent phase Method for back extraction of indium from organic solvent phase

C - Chemistry, Metallurgy

22

B

53/167

C22B 58/00 (2006.01) C01G 15/00 (2006.01) C22B 3/38 (2006.01)

Patent

CA 1193443

ABSTRACT OF THE DISCLOSURE A method for back-extracting indium from an indium-con- taining organic solvent phase based on an alkyl phosphonic acid monoalkyl ester is characterized in that an aqueous solution containing hydrochloric acid and a chloride of a metal less noble than indium is employed as the extractant. The chloride is that of an alkali metal or alkaline earth metal.

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