METHOD OF REFINING SULFATE ZINC SOLUTIONS TO REMOVE IMPURITIES

FIELD: nonferrous metallurgy. ^ SUBSTANCE: method comprises two-step refining, which involves first feeding into incoming solution of exhausted electrolyte antimony-containing additive and second-step cement sediment separated from refined solution and simultaneously zinc powder including 0.1-0.5% l...

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Bibliographische Detailangaben
Hauptverfasser:	ZATONSKIJ A.V, KOZLOV P.A, KAZANBAEV L.A, SHIPITSYN I.V, KOLESNIKOV A.V, BOLDYREV V.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: nonferrous metallurgy. ^ SUBSTANCE: method comprises two-step refining, which involves first feeding into incoming solution of exhausted electrolyte antimony-containing additive and second-step cement sediment separated from refined solution and simultaneously zinc powder including 0.1-0.5% lead and having particle size above 63 mcm. Antimony-containing additive is antimony trioxide used in amount selected from condition that ratio of antimony to summary content of cobalt and nickel in incoming solution is (1-2):1. ^ EFFECT: improved quality of refined solution when solutions with content of cobalt 5-7 mg/l and higher are processed. ^ 2 cl, 1 tbl