Method for extracting vanadium from vanadium slag by calcified pellet roasting

The invention belongs to the technical field of vanadium extraction chemical industry, and discloses a method for extracting vanadium from vanadium slag by calcified pellet roasting. The method comprises the following steps: (1) mixing the vanadium slag with a calcifying additive; (2) spraying an ad...

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Bibliographische Detailangaben
Hauptverfasser:	WANG JUN, GUO JIKE, LI QIANWEN, GAO GUANJIN, FU ZIBI, YIN ZHAOQIAN
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 invention belongs to the technical field of vanadium extraction chemical industry, and discloses a method for extracting vanadium from vanadium slag by calcified pellet roasting. The method comprises the following steps: (1) mixing the vanadium slag with a calcifying additive; (2) spraying an adhesive water solution on the surface of the mixture in the step (1), and preparing pellets; and (3) roasting the pellets, crushing, dissolving the crushed pellets in water, and leaching. The method greatly enhances the vanadium leaching rate, avoids the bonding phenomenon in the vanadium slag high-temperature roasting process, and does not need to add vanadium extraction residues. Thus, the method is simple and easy in technique, has the advantages of wide application range and low cost, and has very high social benefit and economic benefit.