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

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

Research output: Contribution to journalArticle

10 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 languageEnglish
Pages (from-to)341-349
Number of pages9
JournalMaterials Transactions
Volume58
Issue number3
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Keywords

  • Calciothermic reduction
  • Calcium chloride
  • Molten salt electrolysis
  • Titanium production

ASJC Scopus subject areas

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

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