Research Progress in Direct Reduction of TiO₂ to Titanium

A series of direct reduction process of TiO₂ to Ti was introduced based on the calciothermic reduction of TiO₂ power in molten CaCl₂ salt during electrolysis,which include FFC process developed by Cambridge University,OS process developed by Ono and Suzuki,metal thermal reduction process of TiO₂ developed by Park researchers combined the electronically mediated reaction (EMR) and molten salt electrolysis (MSE),and the preform reduction process (PRP) put forward by Okabe.The development in China of the direct reduction of titanium dioxide to titanium was introduced and the technical keys were discussed.It's concluded that the Cambridge's FFC process has the potential to replace the conventional Kroll process.