Title:
金属チタン又はチタンベース合金を連続生成するための方法及び装置
Document Type and Number:
Japanese Patent JP2010504431
Kind Code:
A
Abstract:
Metallic titanium is continuously produced in an electric-arc furnace under a vacuum by the metallothermic reduction of titanium tetrachloride by a reducing agent such as magnesium. The nanoparticles of titanium obtained from the reduction are simultaneously melted in a bath of molten titanium formed by the heat of an electric arc between a consumable titanium electrode and the molten titanium. A voltage applied across the electrode and the molten titanium is adjusted so that molten titanium is maintained in a cooled crystallizer during the entire process. The molten titanium solidifies on the top of a dummy bar that is drawn down as additional titanium is produced. Upon completion of each iterative reduction reaction, the vaporized reducing agent chloride is pumped out of the electric-arc furnace into a condenser using a vacuum pump. Then, additional reducing agent and titanium tetrachloride are added into the furnace, and the process is repeated.
Inventors:
Brambergs, Elvins
Application Number:
JP2009529136A
Publication Date:
February 12, 2010
Filing Date:
May 22, 2007
Export Citation:
Assignee:
Brambergs, Elvins
Baltic Titan Limited
Baltic Titan Limited
International Classes:
C22B34/12; C22B5/04; C22B9/04; C22B9/20; C22C1/02
Domestic Patent References:
| JPS314206B1 | ||||
| JPH0136733A | ||||
| JPS3928000B1 | ||||
| JPH0971827A | 1997-03-18 | |||
| JPS619529A | 1986-01-17 | |||
| JP2004263217A | 2004-09-24 | |||
| JPS34951B1 | ||||
| JPS5110803B1 | 1976-04-07 | |||
| JPH0121021A | ||||
| JPH10502418A | 1998-03-03 |
Foreign References:
| US3847596A | 1974-11-12 |
Attorney, Agent or Firm:
Seiji Ohno
Koji Morita
Reiko Tanaka
Yuko Matsuniya
Ken Kitano
Natsuki Ito
Koji Morita
Reiko Tanaka
Yuko Matsuniya
Ken Kitano
Natsuki Ito