Title:
複合チタン酸化物の製造方法
Document Type and Number:
Japanese Patent JP6806535
Kind Code:
B2
Abstract:
This method for producing a composite titanium oxide comprises: a first step for dry-mixing a bismuth compound, an alkali compound, and a titanium compound in such amounts that the ratio ((Bi+A)/Ti) of the total number of moles of Bi and alkali metal element A with respect to the number of moles of Ti is 0.990-1.000 in terms of atoms, to formulate a first raw material to be fired; a second step for firing the first raw material to be fired, at 500-700°C, to obtain a first fired product; a third step for dry-mixing the first fired product with the bismuth compound and/or the alkali compound in such amounts that the ratio ((Bi+A)/Ti) of the total number of moles of Bi and alkali metal element A with respect to the number of moles of Ti is 0.995-1.005 in terms of atoms, to formulate a second raw material to be fired; and a fourth step for firing the second raw material to be fired, at 500-900°C, to obtain a composite titanium oxide represented by general formula (1).
Inventors:
Shinji Tanabe
Kunida Hajime
Kunida Hajime
Application Number:
JP2016221323A
Publication Date:
January 06, 2021
Filing Date:
November 14, 2016
Export Citation:
Assignee:
Nippon Chemical Industry Co., Ltd.
International Classes:
C01G29/00; C04B35/475; H01L41/37; H01L41/43
Domestic Patent References:
| JP2013155079A | ||||
| JP2006016260A |
Attorney, Agent or Firm:
Patent Business Corporation Ashitaba International Patent Office
Kenji Akatsuka
Yasuyuki Sakata
Kenji Akatsuka
Yasuyuki Sakata