METHOD FOR PRODUCING BARIUM TITANATE POWDER

Title:

METHOD FOR PRODUCING BARIUM TITANATE POWDER

Document Type and Number:

WIPO Patent Application WO/1999/059919

Kind Code:

A1

Abstract:

A method for producing a barium titanate powder with improved productivity, which is composed of fine particles and has a narrow particle diameter distribution, has good dispersibility and has an excellent Ba/Ti atomic ratio. An aqueous solution of a titanium compound such as titanium tetrachloride is contacted under agitation with an alkaline aqueous solution of a barium compound such as the barium chloride which has been subjected to filtration treatment, while adjusting a chemical equivalent ratio of titanium compound/barium compound in 0.8 to 1.2, to thereby produce a barium titanate powder.

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Inventors:

HORIKAWA MATSUHIDE (JP)
SAKAI HIDEKI (JP)
KAGOHASHI WATARU (JP)

Application Number:

PCT/JP1999/002653

Publication Date:

November 25, 1999

Filing Date:

May 20, 1999

Export Citation:

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Assignee:

TOHO TITANIUM CO LTD (JP)
HORIKAWA MATSUHIDE (JP)
SAKAI HIDEKI (JP)
KAGOHASHI WATARU (JP)

International Classes:

C01G23/00; (IPC1-7): C01G23/00

Foreign References:

JPH0412020A	1992-01-16
JPH01286923A	1989-11-17
JPH02111629A	1990-04-24
JPH05306121A	1993-11-19
JPH07232923A	1995-09-05

Other References: