CERIUM COMPOUND MILLING METHOD USING BALL MILL

Title:

CERIUM COMPOUND MILLING METHOD USING BALL MILL

Document Type and Number:

WIPO Patent Application WO/2004/004910

Kind Code:

A1

Abstract:

A method of milling a cerium compound by means of a ball mill using a milling medium, characterized in that the ratio H_b/r of the radius r of a cylindrical ball mill container and the depth H_b of the milling medium in the ball mill container disposed horizontally is 1.2 to 1.9, and the ball mill container is rotated at a rotational speed which is 50% or less of the critical rotational speed N_c=299/r ^1/2 of the ball mill container converted from the radius r expressed in centimeter. The milling method can be a wet or dry type, and the cerium compound is preferably cerium oxide. The method can be used to produce a cerium compound slurry.

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Inventors:

OTA ISAO (JP)
TANIMOTO KENJI (JP)
YAMADA GEN (JP)
TAKAKUMA NORIYUKI (JP)

Application Number:

PCT/JP2003/008475

Publication Date:

January 15, 2004

Filing Date:

July 03, 2003

Export Citation:

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Assignee:

NISSAN CHEMICAL IND LTD (JP)
OTA ISAO (JP)
TANIMOTO KENJI (JP)
YAMADA GEN (JP)
TAKAKUMA NORIYUKI (JP)

International Classes:

B02C17/00; B02C17/20; C09K3/14; (IPC1-7): B02C17/00

Foreign References:

JP2002212544A	2002-07-31
JP2002186870A	2002-07-02
JP2000109808A	2000-04-18

Attorney, Agent or Firm:

Hanabusa, Tsuneo c/o Hanabusa, Patent Office (Shin-Ochanomizu Urban Trinity 2, Kandasurugadai 3-chom, Chiyoda-ku Tokyo, JP)

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