Cobalt recovery method

Details Cobalt recovery method Cobalt recovery method

1989-05-01

1990-03-13

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556149, C07F 1506

Patent

active

049084623

ABSTRACT:
A cobalt recovery method wherein cobalt ions are selectively shifted into an extraction agent mainly composed of either 2-ethyl hexylphosphonate mono-2-ethyl hexylester or di-2 ethyl hexylphosphate in order to extract and separate the cobalt from a solution containing cobalt salts. The method further has a step of stripping the cobalt into an aqueous solution of oxalic acid by bringing the extraction agent containing the cobalt into contact with the aqueous solution of oxalic acid after separation from nickel ion, sodium salt, calcium salt, etc. Cobalt oxalate which does not contain any other salt is then recovered.

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