Calcium reduction of TiS2 in CaCl2 melt

N. Suzuki; M. Tanaka; H. Noguchi; S. Natsui; T. Kikuchi; R. O. Suzuki

doi:10.2320/matertrans.MK201613

Calcium reduction of TiS₂ in CaCl₂ melt

N. Suzuki, M. Tanaka, H. Noguchi, S. Natsui, T. Kikuchi, R. O. Suzuki

Division of Process and System Engineering

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

7 Citations (Scopus)

Abstract

In this study, we reduce TiS2 to Ti via both calciothermic reduction and electrolysis in a CaCl₂ melt. Upon calcium reduction at 1133 K in CaCl₂ melt, the concentration of sulfur decreases to 0.03 mass% S when an amount greater than twice the stoichiometric calcium amount is added. Upon electrolysis reduction at 1173 K in CaCl₂-CaS melt, the concentration of sulfur initially decreases significantly to 0.01 mass% S when a sufficiently large amount of electric charge is supplied. Our results indicate that it is possible to achieve sulfur removal via both calciothermic reduction and electrochemical reaction.

Original language	English
Pages (from-to)	367-370
Number of pages	4
Journal	Materials Transactions
Volume	58
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.MK201613
Publication status	Published - 2017

Keywords

Calciothermic reduction
Molten salt electrolysis
Titanium disulfide

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Calcium reduction of TiS2 in CaCl2 melt",

abstract = "In this study, we reduce TiS2 to Ti via both calciothermic reduction and electrolysis in a CaCl2 melt. Upon calcium reduction at 1133 K in CaCl2 melt, the concentration of sulfur decreases to 0.03 mass% S when an amount greater than twice the stoichiometric calcium amount is added. Upon electrolysis reduction at 1173 K in CaCl2-CaS melt, the concentration of sulfur initially decreases significantly to 0.01 mass% S when a sufficiently large amount of electric charge is supplied. Our results indicate that it is possible to achieve sulfur removal via both calciothermic reduction and electrochemical reaction.",

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T1 - Calcium reduction of TiS2 in CaCl2 melt

AU - Suzuki, N.

AU - Tanaka, M.

AU - Noguchi, H.

AU - Natsui, S.

AU - Kikuchi, T.

AU - Suzuki, R. O.

PY - 2017

Y1 - 2017

N2 - In this study, we reduce TiS2 to Ti via both calciothermic reduction and electrolysis in a CaCl2 melt. Upon calcium reduction at 1133 K in CaCl2 melt, the concentration of sulfur decreases to 0.03 mass% S when an amount greater than twice the stoichiometric calcium amount is added. Upon electrolysis reduction at 1173 K in CaCl2-CaS melt, the concentration of sulfur initially decreases significantly to 0.01 mass% S when a sufficiently large amount of electric charge is supplied. Our results indicate that it is possible to achieve sulfur removal via both calciothermic reduction and electrochemical reaction.

AB - In this study, we reduce TiS2 to Ti via both calciothermic reduction and electrolysis in a CaCl2 melt. Upon calcium reduction at 1133 K in CaCl2 melt, the concentration of sulfur decreases to 0.03 mass% S when an amount greater than twice the stoichiometric calcium amount is added. Upon electrolysis reduction at 1173 K in CaCl2-CaS melt, the concentration of sulfur initially decreases significantly to 0.01 mass% S when a sufficiently large amount of electric charge is supplied. Our results indicate that it is possible to achieve sulfur removal via both calciothermic reduction and electrochemical reaction.

KW - Calciothermic reduction

KW - Molten salt electrolysis

KW - Titanium disulfide

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