Method for treating zinc sulfate leach liquor

The invention discloses a method for treating zinc sulfate leach liquor, which comprises the steps of: A) filling tail gas coming from an autoclave into the zinc sulfate leach liquor coming from the autoclave for oxidizing Fe2+ in the zinc sulfate leach liquor to be Fe3+, then carrying out solid-liq...

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Bibliographische Detailangaben
Hauptverfasser:	XIONG CONGFAN, WANG JIKUN, ZHU SHAOJU, BI HONGLIN, YU JIYONG, BI HONGXING
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 treating zinc sulfate leach liquor, which comprises the steps of: A) filling tail gas coming from an autoclave into the zinc sulfate leach liquor coming from the autoclave for oxidizing Fe2+ in the zinc sulfate leach liquor to be Fe3+, then carrying out solid-liquid separation on the zinc sulfate leach liquor, and obtaining iron hydroxide precipitation and iron-removal middle supernatant; B) supplying the iron-removal middle supernatant into a purification device, and heating the iron-removal middle supernatant to be the first preset temperature by the tail gas coming from the autoclave; and C) purifying the iron-removal middle supernatant. The method for treating the zinc sulfate leach liquor has the advantages of being low in energy consumption, low in cost, convenient to implement and the like.