Method for directly leaching zinc and recovering gallium, germanium and indium from zinc sulfide concentrate

The invention discloses a method for directly leaching zinc and recovering gallium, germanium and indium from zinc sulfide concentrate. The method comprises the following steps of: grinding the zinc sulfide concentrate, directly leaching the zinc sulfide concentrate at a low temperature under a low...

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Bibliographische Detailangaben
Hauptverfasser:	HE XINGMIN, LI XIAXIANG, LIU YEPING, XU YI, PAN CHENXIANG, ZUO XIAOHONG, DENG MENGLI, LIN YUAN, CAI JIANGSONG, ZHANG DENGKAI, WANG LIJUAN, YU GANG
Format:	Patent
Sprache:	chi ; eng
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:	The invention discloses a method for directly leaching zinc and recovering gallium, germanium and indium from zinc sulfide concentrate. The method comprises the following steps of: grinding the zinc sulfide concentrate, directly leaching the zinc sulfide concentrate at a low temperature under a low pressure by adopting low acid, leaching the leached slag at a high temperature under a high pressure by adopting high acid, neutralizing and displacing the leachate, conveying the filter residue to a gallium, germanium and indium recovery system, removing iron from the filtrate, purifying, performing electro-deposition, and smelting to produce zinc ingots. By the method, the zinc can be directly leached from the zinc sulfide concentrate, and dissipated metals such as gallium, germanium and indium are comprehensively recovered when the zinc is recovered.