| Abstract Scope |
Fe-V alloy is widely used in metallurgical industry because of its excellent mechanical properties, and molten salt electro-deoxidation as a green, short process preparation process, can be simple and efficient preparation of simple substances and alloys. In this study, Fe3O4 and V2O5 were used as raw materials. In the temperature range of 500~1000 ℃, the thermodynamic analysis of Fe-V alloy prepared by molten salt electro-deoxidation process was carried out to clarify the reaction process. The results show that Fe3O4 and V2O5 are reduced step by step to produce Fe and V. With the progressive reduction of V2O5, the removed oxygen ions will affect the remaining V2O5 that is not completely reduced, and react with Ca2+ in molten salt to produce CaV2O6. Therefore, the reduction process of vanadium goes through CaV2O6/V2O5→VO2→V2O3. The subsequent process is Fe3O4→FeO→Fe, and the final process is V2O3→VO→V, finally forming Fe-V alloy. |