Method for producing a metal from its halide
AssigneeToho Titanium Co., Ltd.
InventorsShigenori Okudaira, Takefumi Irie, Hiroshi Uchida, Eiichi Fukasawa, Kazuhiko Kobayashi, Masanori Yamaguchi
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AssigneeToho Titanium Co., Ltd.
InventorsShigenori Okudaira, Takefumi Irie, Hiroshi Uchida, Eiichi Fukasawa, Kazuhiko Kobayashi, Masanori Yamaguchi
Estimating the term…
A method for producing metal by the reduction of a metal halide by a reducing metal agent capable of continuously producing homogeneous metal of high purity. In the method, particles of the same metal as the metal to be produced are charged into a reaction vessel and the metal halide and the reducing metal agent both in vapor form, are ejected upwards into the reaction vessel from its lower portion to form a fluidized bed of the metal particles in the vessel. The reducing reaction between the two vapors takes place on the surface of the metal particles at a temperature below the melting point of the metal product and at a pressure below a vapor pressure of each of the reducing metal agent and the metal halide at that temperature, resulting in depositing and growing the metal product on the surface of the particles.
A method for producing a metal by the reduction of its metal halide using a reducing metal agent, characterized by the steps of:
A method as claimed in any preceding claim characterized in that the metal halide is titanium chloride, zirconium chloride, silicon chloride, tantalum chloride or niobium chloride.
A method as claimed in any preceding claim characterized in that the reducing metal agent is magnesium or sodium.
A method as claimed in any preceding claim characterized in that the reaction is carried out at a temperature of 1100.degree. C. and a pressure of 20-50 Torr.
Dependencies are inferred from the claim text.