Method for producing titanium alloy
AssigneeToho Titanium Co., Ltd.
InventorsShigenori Okudaira, Takefumi Irie, Hiroshi Uchida, Eiichi Fukasawa, Kazuhiko Kobayashi, Masanori Yamaguchi
Life of this patent
Estimating the term…
Abstract
A method for producing titanium alloy by the reduction of titanium tetrachloride and alloy components with a reducing metal agent, capable of continuously producing titanium alloy on an industrial scale. The temperature and pressure of the reaction zone for the reduction are kept above a melting point of the titanium alloy and above the vapor pressure of the reducing metal agent at that temperature respectively, so that the reducing metal agent and its chloride may be kept in a molten state but without boiling.
Claims12
A method for producing a titanium alloy comprising titanium and at least one other alloy component metal, in which titanium tetrachloride is reduced using a reducing metal agent, comprising the steps of:
- maintaining a reaction zone in a reaction vessel at a temperature above the melting point of the titanium alloy to be produced and at above the vapour pressure of the reducing metal agent at that temperature;
- supplying the titanium tetrachloride, the reducing metal agent and the alloy component metals in metal form or in compound form to the reaction zone for reaction to produce the titanium alloy product and a chloride by-product of the reducing metal agent;
- separating the product and by-product from each other in the molten state;
- collecting the titanium alloy product at the bottom of the vessel;
- and continuously drawing out the titanium alloy product from the reaction vessel.
Dependencies are inferred from the claim text.