Method for extracting germanium concentrate from germanium-containing reverse extraction alkaline liquor

The invention relates to the technical field of wet metallurgy and in particular relates to a method for extracting germanium concentrate from germanium-containing reverse extraction alkaline liquor. An acid solution containing Zn is taken as a settling agent used for hydrolyzing and precipitating g...

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Bibliographische Detailangaben
Hauptverfasser:	LI SHIPING, NI CHANGKAI, ZHOU DAIJIANG
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 relates to the technical field of wet metallurgy and in particular relates to a method for extracting germanium concentrate from germanium-containing reverse extraction alkaline liquor. An acid solution containing Zn is taken as a settling agent used for hydrolyzing and precipitating germanium in the germanium-containing reverse extraction alkaline liquor, after hydrolysis is completed, filtering is carried out for obtaining hydrolysis slag and hydrolysate, then the hydrolysis slag is washed twice, and then the washed hydrolysis slag is calcined and dried in a calcining furnace at the temperature of 500-600 DEG C for 3-5 hours, so that germanium concentrate with germanium content more than or equal to 7% is obtained; separating difficulty in the traditional technology is reduced, and meanwhile the filtering difficulty caused by massive slag liquid is also avoided, so that the grade of the germanium concentrate is improved.