Title:
PROCESS FOR PRODUCING AN OXIDE
Document Type and Number:
WIPO Patent Application WO/2010/041558
Kind Code:
A1
Abstract:
Provided is a process for producing an oxide which includes an electrically conductive mayenite type compound and has an electron density of at least 1 x 1018/cm3, starting from a combination of a calcium compound and aluminium compound, or a compound which includes calcium and aluminium with a molar ratio of calcium oxide and aluminium oxide as equivlent oxides in the range 9:10 to 14:5, wherein the process for producing an oxide includes a step of heating and holding the starting material at 900-1300°C to produce a calcined powder which includes at least one oxide selected from a group comprising calcium aluminate, calcium oxide and aluminium oxide, and a step of heating and holding the aforementioned calcined powder at at least 1200°C and less than 1415°C, in a reducing atmosphere in an atmosphere of an inert gas with a partial pressure of oxygen of no more than 1000 Pa or in a vacuum atmosphere.
Inventors:
ITO Kazuhiro (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
伊藤 和弘 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
WATANABE Satoru (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
渡邉 暁 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
伊藤 和弘 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
WATANABE Satoru (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
渡邉 暁 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
Application Number:
JP2009/066642
Publication Date:
April 15, 2010
Filing Date:
September 25, 2009
Export Citation:
Assignee:
Asahi Glass Company, Limited. (12-1, Yurakucho 1-chome Chiyoda-k, Tokyo 05, 〒1008405, JP)
旭硝子株式会社 (〒05 東京都千代田区有楽町一丁目１２番１号 Tokyo, 〒1008405, JP)
ITO Kazuhiro (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
伊藤 和弘 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
WATANABE Satoru (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
旭硝子株式会社 (〒05 東京都千代田区有楽町一丁目１２番１号 Tokyo, 〒1008405, JP)
ITO Kazuhiro (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
伊藤 和弘 (〒05 東京都千代田区有楽町一丁目１２番１号 旭硝子株式会社内 Tokyo, 〒1008405, JP)
WATANABE Satoru (Limited. 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
International Classes:
C01F7/16; H01J1/30; H01J1/304
Attorney, Agent or Firm:
OGURI Shohei et al. (Eikoh Patent Firm, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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