Method for leaching nickel-containing eluvial ore

The invention provides a method for leaching an nickel-containing eluvial ore, which comprises the following steps: mixing the nickel-containing eluvial ore with an acid to perform acid leaching so as to obtain nickel-containing eluvial ore leachate; adding a vitriol precipitating agent into the nic...

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Bibliographische Detailangaben
Hauptverfasser:	WANG DUODONG, WANG YAQIN, LI HAIYAN, ZHANG ZHULU, REN YIMIN, LIU JINSHAN, RONG SHIJIA, XIAO WANLIN, LU YEDA
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 provides a method for leaching an nickel-containing eluvial ore, which comprises the following steps: mixing the nickel-containing eluvial ore with an acid to perform acid leaching so as to obtain nickel-containing eluvial ore leachate; adding a vitriol precipitating agent into the nickel-containing eluvial ore leachate so as to precipitate iron dissolved in the nickel-containing eluvial ore leachate in a form of iron vitriol; adding an oxidant into the nickel-containing eluvial ore leachate after vitriol precipitation to transform a small amount of ferrous iron into ferric iron, and adding limestone to precipitate the ferric iron; and performing solid-liquid separation on the nickel-containing eluvial ore leachate subjected to precipitation so as to obtain leaching residue and a leachate containing a soluble nickel salt. The leaching method for the nickel-containing eluvial ore can precipitate the ferric iron from the nickel-containing eluvial ore through vitriol precipitating reaction and also