High-speed titanium production by magnesiothermic reduction of titanium trichloride

Osamu Takeda, Toru H. Okabe

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The possibility of a high-speed and (semi-)continuous titanium production process by the magnesiothermic reduction of titanium subchloride - titanium dichloride (TiCl 2) and/or titanium trichloride (TiCl 3) - is discussed. When the TiCl 3 feed material and magnesium reductant charged into a titanium reaction container were heated at a rate of 0.056 K/s (3.3 K/min) in an argon atmosphere, the temperature of the container rapidly increased above 973 K, and the magnesiothermic reduction of TiCl 3 proceeded at a high speed. After the reduction, the reaction product magnesium chloride (MgCl 2) and the excess magnesium were removed by leaching or vacuum distillation. An efficient separation process of MgCl 2 from titanium metal by a combination of draining and vacuum distillation was also investigated. Under a suitable condition, titanium with 99.5% purity was efficiently obtained. The titanium reaction container showed no signs of damage, thus proving its suitability for the magnesiothermic reduction of TiCl 3.

Original languageEnglish
Pages (from-to)1145-1154
Number of pages10
JournalMaterials Transactions
Issue number4
Publication statusPublished - 2006 Apr


  • High-speed process
  • Magnesiothermic reduction
  • Subhalide reduction process
  • Titanium
  • Titanium trichloride


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