| Abstract |
| The molten salt electrolysis is applied to reduce titanium dioxide to titanium metal using calcium chloride as an electrolyte and the reaction mechanism of the reduction process is examined by analyzing the reaction products. The process conditions to obtain titanium metal for 900℃ correspond to 2.9~3.2 V and 24 hours. The reaction products for 2.9 V at 900℃ include irregular-shaped titanium oxides such as Ti4O7, Ti3O5 and Ti2O3 and polyhedral CaTiO3. Using these microstructure analysis, the sequential reaction mechanism for the electrochemical reduction of titanium dioxide to titanium is proposed. |
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| Key Words |
| titanium, titanium dioxide, molten salt electrolysis, calcium chloride, reaction mechanism |
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