Electro-Reduction of Ilmenite to FexTi Alloys in Molten CaCl2

Xing Li Zou; Xiong Gang Lu; Wei Xiao; Shan Lin Gu; Bin Shen

doi:10.4028/www.scientific.net/AMM.548-549.172

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 548-549Electro-Reduction of Ilmenite to FexTi Alloys in...

Electro-Reduction of Ilmenite to Fe_xTi Alloys in Molten CaCl₂

Abstract:

This paper reports the preparation of Fe_xTi alloys from natural ilmenite by electro-reduction in molten CaCl₂. The electro-reduction experiment was carried out at 1000 °C and potential of 3.8 V, and an inert solid oxide oxygen-ion-conducting membrane (SOM) anode system was used to control the electrochemical experiment. The phase composition and morphology of the final product were investigated. The reaction mechanism involved in the electro-reduction process is discussed based on our experimental results and thermodynamic analysis. It is suggested that Fe_xTi alloys powder with different Fe contents (Fe_xTi, 0 ≤ x ≤ 2) and particle sizes can be obtained by controlling electrolysis conditions strictly. The result implies that the SOM process is a promising green method for the preparation of ferrotitanium alloys direct from natural ilmenite.

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Applied Mechanics and Materials (Volumes 548-549)

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172-176

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https://doi.org/10.4028/www.scientific.net/AMM.548-549.172

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Online since:

April 2014

Authors:

Xing Li Zou*, Xiong Gang Lu, Wei Xiao, Shan Lin Gu, Bin Shen

Keywords:

Electrolysis, Electro-Reduction, Molten Salt, Oxide, Titanium Alloy

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