METHOD OF PROCESSING SPENT VANADIUM CATALYST

FIELD: methods for processing spent vanadium catalyst by its roasting with production of concentrated vanadium-containing product. SUBSTANCE: roasting of catalyst is carried out at 900-1000 C with supply of flue gases to obtain in vanadium-containing product ration of V:S=1:(0.10-0.40) and VY2O5: Me...

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Hauptverfasser:	SEREGIN A.N, ELIZAROV I.A, RUDIN V.N, AZHIKINA JU.V
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:	FIELD: methods for processing spent vanadium catalyst by its roasting with production of concentrated vanadium-containing product. SUBSTANCE: roasting of catalyst is carried out at 900-1000 C with supply of flue gases to obtain in vanadium-containing product ration of V:S=1:(0.10-0.40) and VY2O5: MeMe2O = 1:(1.4-2.0), where MeMe2O is sum of oxides of alkali metals; separated sulfur-containing gases are directed to production of sulfuric acid. EFFECT: higher efficiency.