Process for smelting ferro-vanadium through electro-aluminothermic method

The invention provides a process for producing ferro-vanadium through an electro-aluminothermic method. The process comprises the following steps of: mixing 1 part by weight of lime, 5 to 6 parts by weight of aluminum and 7.5 to 8.0 parts by weight of V2O3; adding ferrum according to the specificati...

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Bibliographische Detailangaben
Hauptverfasser: XIANG LI, CHEN YONG, CHEN LIAN, JIANG LONGKUI, SUN ZHAOHUI, GE WENSUN, WANG YONGGANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a process for producing ferro-vanadium through an electro-aluminothermic method. The process comprises the following steps of: mixing 1 part by weight of lime, 5 to 6 parts by weight of aluminum and 7.5 to 8.0 parts by weight of V2O3; adding ferrum according to the specification of a ferro-vanadium product, and adding 5kg to 10kg of borax and 6kg to 12kg of fluorite to each ton of ferro-vanadium to form a mixed material; performing arc strike ignition on an electric arc furnace; adding the mixed material for reduction smelting, wherein the temperature of the reduction smelting is controlled at 1,700 to 1,900 DEG C; after the reaction is completed, adding a refined material for refining; after the refining is completed, performing cooling to obtain a slag cake and a ferro-vanadium alloy cake; performing separation to obtain the ferro-vanadium alloy product. By virtue of the process, the melting point of ferro-vanadium smelting slag can be reduced, the possibility of mixing ferrum in the