Method for extracting vanadium pentoxide from Stone-like coal vanadium ore and special device for the same

• Main Authors: LU ZHENGJUN, JIANG XIANGMIN, WANG SHENGTONG, FU JINGLONG
• Format: Patent
• Language: Chinese; English
• Published: 23.03.2011
• Subjects: 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

The present invention relates to a process for extracting vanadic anhydride from a stone coal and its special-purpose equipments. By utilizing ebullated bed conversion type acid dip extraction vanadium abstraction process, the present invention improves extraction yield of vanadium and quality of vanadic anhydride, and at the same time, actively controls three wastes, effectively promotes cyclingand reutilization of three wastes and reaction by-products, is characterized by its high product quality, low primary materials consumption, low energy consumption, high yield, environmental protection, economy and omni-process automation and the like, and possesses pronounced economic benefit and social benefit compared with the existing vanadium extraction technic.