MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Reduction of CaTiO3 in Molten CaCl2 - as Basic Understanding of Electrolysis
Ryosuke O. SuzukiHiromi NoguchiHiromasa HadaShungo NatsuiTatsuya Kikuchi
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2017 Volume 58 Issue 3 Pages 341-349

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Abstract

Electrochemical decomposition of CaTiO3 at the cathode was examined in a scheme of titanium metal production from natural deposit, Ilmenite (TiFeO3). Based on the possible precipitation of CaTiO3 from TiFeO3, the electrochemical decomposition of CaTiO3 is here examined using combination of the calciothermic reduction and the electrolysis of CaO in the same molten salt. Inhomogeneous reduction in the cathodic basket is related with buoyancy of Ca and insufficient dehydration. By optimizing the cooling conditions, CaO content in the molten salt, and dehydration method, an industrial level of 0.42 mass%O could be achieved as powder form.

Fig. 5 illustration of reaction model of deposited Ca and the oxide. (a) slim basket and (b) thick basket. Fullsize Image
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© 2016 The Japan Institute of Metals and Materials
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