METHOD FOR PRODUCING VALVE METAL - CABOT SUPERMETALS K K

Title:

METHOD FOR PRODUCING VALVE METAL

Document Type and Number:

WIPO Patent Application WO/2005/077573

Kind Code:

A1

Abstract:

A method for producing a valve metal powder is characterized in that a solid reducing agent is added to an oxide of a valve metal which has been heated to 900-1100&ring C or a mixture of such an oxide of the valve metal and the solid reducing agent.

Inventors:

IIJIMA HITOSHI (JP)
FUKUMOTO YUJI (JP)

Application Number:

PCT/JP2005/002242

Publication Date:

August 25, 2005

Filing Date:

February 15, 2005

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Assignee:

CABOT SUPERMETALS K K (JP)
IIJIMA HITOSHI (JP)
FUKUMOTO YUJI (JP)

International Classes:

B22F9/20; C22B5/04; C22B5/12; C22B34/24; (IPC1-7): B22F9/20

Domestic Patent References:

WO2002090024A1

2002-11-14

Foreign References:

JP2003213309A	2003-07-30
JPS52107211A	1977-09-08
JPH10504603A	1998-05-06

Attorney, Agent or Firm:

Shiga, Masatake (Yaesu Chuo-ku, Tokyo, JP)

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