METODO PARA LA SEPARCION DE NIQUEL-COBALTO

A method is provided for separating nickel and cobalt from a cobalt-nickel precipitate, the cobalt being in the cobaltic state. The method comprises dissolving the precipitate in an ammonium sulfate solution containing NH3, acidifying the solution to a pH of about 1.5 to 3.0 and then cooling the sol...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CVETKO B. NIKOLIC
Format:	Patent
Sprache:	spa
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method is provided for separating nickel and cobalt from a cobalt-nickel precipitate, the cobalt being in the cobaltic state. The method comprises dissolving the precipitate in an ammonium sulfate solution containing NH3, acidifying the solution to a pH of about 1.5 to 3.0 and then cooling the solution to produce a nickel-ammonium sulfate precipitate highly enriched in nickel. The precipitate is separated from the solution and the solution passed through an ion exchange column selective to the removal of nickel, the solution remaining containing said cobalt substantially free of nickel, the cobalt solution being then sent to cobalt recovery.