Title:
METHOD A ND APPARATUS FOR SMELTING TITANIUM METAL
Document Type and Number:
WIPO Patent Application WO/2003/038156
Kind Code:
A1
Abstract:
A method for smelting a titanium metal (Ti) wherein titanium oxide (TiO2) is subjected to thermal reduction to produce a titanium metal, characterized in that it comprises charging a mixed salt of calcium chloride (CaCl2) and calcium oxide (CaO) into a reaction vessel, heating the mixed salt to prepare a molten salt as a reaction region, electrolyzing the molten salt to thereby convert the reaction region to a strong reducing molten salt containing an 1−valent calcium ion (Ca&plus ) and&sol or calcium (Ca), supplying titanium oxide into the strong reducing molten salt, to reduce the titanium oxide by the 1−valent calcium ion (Ca&plus ) and&sol or calcium (Ca) and deoxidize the titanium metal having been formed by the reduction of the titanium oxide&semi and an apparatus for practicing the method. The method can be employed for producing a titanium metal suitable for various applications advantageously from a commercial view point.
Inventors:
ONO KATSUTOSHI (JP)
SUZUKI RYOSUKE (JP)
SUZUKI RYOSUKE (JP)
Application Number:
PCT/JP2002/010588
Publication Date:
May 08, 2003
Filing Date:
October 11, 2002
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
ONO KATSUTOSHI (JP)
SUZUKI RYOSUKE (JP)
ONO KATSUTOSHI (JP)
SUZUKI RYOSUKE (JP)
International Classes:
C22B5/04; C22B34/12; C25C3/28; C25C7/00; (IPC1-7): C25C3/28; C22B34/12
Foreign References:
| JPS322357B1 | 1957-04-18 | |||
| JPH0499829A | 1992-03-31 | |||
| JP2000345252A | 2000-12-12 |
Other References:
See also references of EP 1445350A4
Attorney, Agent or Firm:
Naruse, Katsuo (Central Shinbashi Bldg. 11-5, Nishi-shinbashi 2-chom, Minato-ku Tokyo, JP)
Download PDF: