Title:
METAL OXIDE POWDER, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/210102
Kind Code:
A1
Abstract:
A method for producing a metal oxide powder according to the present invention includes a step for heating in the presence of halogen, in which a metal oxide is heated in the presence of halogen. A metal oxide powder according to the present invention is a metal oxide powder of a metal other than uranium, iron, and titanium, the content of uranium in the metal oxide powder is at most 1.0 mass ppb, the content of iron is at most 100 mass ppm in terms of Fe2O3, and the content of titanium is at most 8 mass ppm in terms of TiO2. According to the present invention, it is possible to provide: a method which is for producing a metal oxide powder and with which a high-purity metal oxide powder can be produced by removing impurities from the metal oxide powder; and a metal oxide powder produced by the production method.
Inventors:
MINAMIKAWA TAKAAKI (JP)
SHIOTSUKI HIROYUKI (JP)
MIYAZAKI KOJI (JP)
SHIOTSUKI HIROYUKI (JP)
MIYAZAKI KOJI (JP)
Application Number:
PCT/JP2022/013187
Publication Date:
October 06, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C01B13/16; C01B33/18
Domestic Patent References:
| WO2018096876A1 | 2018-05-31 |
Foreign References:
| JPH0640713A | 1994-02-15 | |||
| JPH07172977A | 1995-07-11 | |||
| JPH08290911A | 1996-11-05 | |||
| JP2006021948A | 2006-01-26 | |||
| JP2007145698A | 2007-06-14 | |||
| JPH0769617A | 1995-03-14 |
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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