发明授权
- 专利标题: Catalytic composition for oxychlorination
- 专利标题(中): 氧氯化催化组合物
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申请号: US12219823申请日: 2008-07-29
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公开(公告)号: US07595276B2公开(公告)日: 2009-09-29
- 发明人: Takashi Kodama , Tsuguo Koyanagi
- 申请人: Takashi Kodama , Tsuguo Koyanagi
- 申请人地址: JP Kawasaki-shi, Kanagawa
- 专利权人: JGC Catalysts and Chemicals Ltd.
- 当前专利权人: JGC Catalysts and Chemicals Ltd.
- 当前专利权人地址: JP Kawasaki-shi, Kanagawa
- 代理商 Manabu Kanesaka
- 优先权: JP2007-197825 20070730; JP2007-305224 20071127
- 主分类号: B01J21/00
- IPC分类号: B01J21/00 ; C07C17/15 ; B01J23/00 ; B01J20/00 ; B01J21/04 ; B01J23/02
摘要:
The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene.The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of Al2O3. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.
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