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The formation behavior of CaTiO_3 during electro-deoxidization of ilmenite concentrate to prepare Fe–Ti alloy was investigated by experiments and simulation.The results indicate that the formation and decomposition of intermediate products,CaTiO_3,are inevitable steps during electro-deoxidization of ilmenite concentrate.CaTiO_3 can be generated through the hydrolyzation of molten salt and electrochemistry reaction during electrochemical process.The main reason for the generation of CaTiO_3 is the electrochemistry reaction between Ca~(2+) from molten salt and TiO_2 in the cathode.With the proceeding of the electro-deoxidization,CaTiO_3 is further electrolyzed to form titanium sub-oxide.The current efficiency can be improved when CaTiO_3 forms in the cathode by adding CaCO_3 during sintering process.
The formation behavior of CaTiO_3 during electro-deoxidization of ilmenite concentrate to prepare Fe-Ti alloy was investigated by experiments and simulation. The results indicate that the formation and decomposition of intermediate products, CaTiO_3, are inevitable steps during electro-deoxidization of ilmenite concentrate. CaTiO_3 can be generated through the hydrolyzation of molten salt and electrochemistry reaction during electrochemical process. The main reason for the generation of CaTiO_3 is the electrochemistry reaction between Ca ~ (2+) from molten salt and TiO_2 in the cathode. What the proceeding of the electro-deoxidization, CaTiO_3 is further electrolyzed to form titanium sub-oxide. current current can be improved when CaTiO_3 forms in the cathode by adding CaCO_3 during sintering process.