Investigation reveals calcium effectively reduces titanium dioxide in a fused salt environment, suggesting improved methods for titanium production.
Reduction of titanium dioxide by calcium produced in hot cathode spot was investigated in fused salt (liq-CaCl2). In cathode in fused CaCl2 salt, titanium dioxide was simultaneously reducted by calcium produced by electrolysis of the same CaCl2 salt. TiO2 was changed successively as follows: TiO2→Ti2O3 and CaTiO3→Ti. CaO produced in this reduction reaction was impeding so-called anode effect successfully.
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Oki et al. (1968) studied this question.
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