Study on impact factors of electric current efficiency for electrolysis reduction of TiO_2 to titanium in molten

The impact factors on electric current efficiency for electrolysis reduction of TiO_2 to titanium in molten were studied in this paper.When the press is under 101Pa,the electrolysis temperature is 850℃,the distance of electrodes is 5cm,the current density of cathode is 1.05 A.cm~(-2)and the current density of anode is 0.8 A.cm~(-2), the results showed the spongy titanium oxidation can be avoid,the current loss can be reduced,the current efficiency can be improved by electrolysis in CaCl_2 molten.Using the mixed molten such as CaCl_2+A,electrolysis temperature and resistance can be reduced greatly,the current efficiency can be improved greatly.The current efficiency can be improved by measures such as selecting the proper press,molten,distance of electrodes,current density of cathode and anode,keeping electrolytic cell shape regularly,and using the more pure molten and TiO_2 material etc.