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Primary Examiner: Vertiz, Oscar R.
Assistant Examiner: Hearn, Brian E.
Attorney: Brooks Haidt Haffner & Delahunty

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Title: Method of separating cobalt (II) and nickel (II) by extraction

Abstract: A method of separating cobalt (II) and nickel (II) by extraction with an organic extraction solution from an aqueous solution containing these metal ions is disclosed, in which a water soluble magnesium compound is added to the aqueous solution prior to the extraction and after the extraction the extraction agent is regenerated to recover the cobalt.

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Inventors: Leimala, Raimo Juhani (Harjavalta, SF)

Application Number: 467096
Filing Date: 1974-05-06
Publication_date: 1976-01-13
Assignee: Outokumpu Oy (Outokumpu, SF)
Primary Class(es): 423/139
Other Classes:
US Patent Ref:

3399055	Aug, 1968	Ritcey et al.	75/119.
3666446	May, 1972	Cook et al.	75/101.

Other Refs: 915,468

Jan, 1963	UK

Other References: Tremillon, Bull. Soc. Chim., France 1958, pp. 502-511, as abstracted in Chem. Abstracts Vol. 52, No. 14280e,f.