Title:
METHOD FOR PRODUCING VALVE METAL POWDER OR LOWER OXIDE POWDER
Document Type and Number:
WIPO Patent Application WO/2005/077572
Kind Code:
A1
Abstract:
A method for producing a valve metal powder or lower oxide powder is characterized in that a hydroxide of a valve metal is reduced using a reducing agent. Alternatively, a method for producing a valve metal powder or lower oxide powder is characterized in that a solid reducing agent is added to a hydroxide of a valve metal which has been heated to 900-1100&ring C or a mixture of such a hydroxide of the valve metal and a part of the solid reducing agent.
Inventors:
FUKUMOTO YUJI (JP)
Application Number:
PCT/JP2005/002227
Publication Date:
August 25, 2005
Filing Date:
February 15, 2005
Export Citation:
Assignee:
CABOT SUPERMETALS K K (JP)
FUKUMOTO YUJI (JP)
FUKUMOTO YUJI (JP)
International Classes:
B22F9/20; C22B5/12; C22B34/24; (IPC1-7): B22F9/20
Foreign References:
| JPS5938306A | 1984-03-02 | |||
| JPS6210229A | 1987-01-19 | |||
| JPS5316347A | 1978-02-15 | |||
| JPS52107211A | 1977-09-08 | |||
| JPH10504603A | 1998-05-06 |
Attorney, Agent or Firm:
Shiga, Masatake (Yaesu Chuo-k, Tokyo 53, JP)
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