Reduction of CaTiO3 in molten CaCl2 - As basic understanding of electrolysis

Ryosuke O. Suzuki; Hiromi Noguchi; Hiromasa Hada; Shungo Natsui; Tatsuya Kikuchi

doi:10.2320/matertrans.MK201625

Reduction of CaTiO₃ in molten CaCl₂ - As basic understanding of electrolysis

Ryosuke O. Suzuki, Hiromi Noguchi, Hiromasa Hada, Shungo Natsui, Tatsuya Kikuchi

IMRAM - Division of Process and System Engineering

Hokkaido University

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

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.

Original language	English
Pages (from-to)	341-349
Number of pages	9
Journal	Materials Transactions
Volume	58
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.MK201625
Publication status	Published - 2017

Keywords

Calciothermic reduction
Calcium chloride
Molten salt electrolysis
Titanium production

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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.",

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T1 - Reduction of CaTiO3 in molten CaCl2 - As basic understanding of electrolysis

AU - Suzuki, Ryosuke O.

AU - Noguchi, Hiromi

AU - Hada, Hiromasa

AU - Natsui, Shungo

AU - Kikuchi, Tatsuya

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Calciothermic reduction

KW - Calcium chloride

KW - Molten salt electrolysis

KW - Titanium production

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Reduction of CaTiO₃ in molten CaCl₂ - As basic understanding of electrolysis

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Keywords

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