Direct Preparation of Aluminum-Vanadium Intermediate Alloy Through Electrolysis in Na3AlF6-K3AlF6-AlF3-NaVO3 Molten Salts

The preparation of aluminum-vanadium (Al-V) intermediate alloys through the electrolysis of NaVO3NaVO in the Na3AlF6-K3AlF6-AlF3 molten saltMolten salt system using liquid aluminum as cathode is a novel process. In the present study, the forms of the Al-V intermetallic compounds and the contents of vanadiumVanadium in the intermediate alloys were investigated at different current densitiesCurrent density. The results showed that the cathode product contained aluminum matrix and Al10V at a current densityCurrent density of 0.6 A/cm2. As the current densityCurrent density increased to 0.7 A/cm2, the Al3V phase started to form while the vanadiumVanadium content was still very low in the cathode product. At 0.8 A/cm2, the vanadiumVanadium content in the cathode alloy product reached 7.83 wt.% with a current efficiency of 34.54%. However, no significant change in the vanadiumVanadium content was noticed at current densitiesCurrent density of 0.9 and 1.0 A/cm2.