Extraction process for the selective romoval of cobalt (ii)...

Details Extraction process for the selective romoval of cobalt (ii)... Extraction process for the selective romoval of cobalt (ii)...

C - Chemistry, Metallurgy

22

B

53/308

C22B 23/04 (1980.01)

Patent

CA 1179151

ABSTRACT OF THE DISCLOSURE Cobalt(II)-, nickel(II)-bearing aqueous solutions may be treated with an extractant comprising an organic-soluble phosphinic acid, or a salt thereof, to separate the cobalt(II) from the aqueous solution. Typical extraction techniques compatible with the instant process include liquid- liquid extraction employing either mixer settlers or columns, packed beds of supported extractants as in ion exchange, liquid membrane extraction and selective supported membrane extraction.

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