Leaching-out method for extracting vanadium from vanadium-containg ore calcines and its application in stone-coal calcination-direct vanadium-extracting process

The present invention discloses a leaching process for extracting vanadium from calciners of ore containing vanadium and its application in bone coal blank calcination-direct leaching vanadium-extracting process. It is mainly characterized by that the broken bone coal is calcined in vertical kiln, u...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENXIAN LUO, JIANKAI ZHAN, DONGKAI ZHAN
Format:	Patent
Sprache:	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 present invention discloses a leaching process for extracting vanadium from calciners of ore containing vanadium and its application in bone coal blank calcination-direct leaching vanadium-extracting process. It is mainly characterized by that the broken bone coal is calcined in vertical kiln, under the condition of 800-1100 deg.C oxidated and decarbonized, then the calciners are pulverized into granules, and these granules are respectively placed into two groups of corrosion resistant pools, one group is static-soaked by adding acid, and another group is static-soaked by adding alkali, then two diffusion liquors are mixed, and neutralized to pH 6-9, then the flocculating agent is added to make purification and remove impurity. Said invention can eliminate pollution due to chlorine, simplify technological process, reduce production cost and raise vanadium recovery.