发明授权
US08435919B2 High specific surface area mixed oxide of cerium and of another rare earth, preparation method and use in catalysis
有权
铈和另一种稀土的高比表面积混合氧化物，制备方法和用于催化
- 专利标题： High specific surface area mixed oxide of cerium and of another rare earth, preparation method and use in catalysis
- 专利标题（中）： 铈和另一种稀土的高比表面积混合氧化物，制备方法和用于催化
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申请号： US12665852申请日： 2008-06-20
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公开(公告)号： US08435919B2公开(公告)日： 2013-05-07
- 发明人: Kazuhiko Yokota , Naotaka Ohtake
- 申请人： Kazuhiko Yokota , Naotaka Ohtake
- 申请人地址： JP Hyogo
- 专利权人： Anan Kasei Co., Ltd.
- 当前专利权人： Anan Kasei Co., Ltd.
- 当前专利权人地址： JP Hyogo
- 代理机构： Thompson Coburn LLP
- 优先权： FR0704400 20070620
- 国际申请： PCT/JP2008/061689 WO 20080620
- 国际公布： WO2008/156219 WO 20081224
- 主分类号： B01J23/00
- IPC分类号： B01J23/00 ; B01J23/10 ; C01B13/00 ; C01B21/00 ; C01B23/00 ; C01B25/00 ; C01B31/00 ; C01B33/00 ; C01B35/00 ; C01C1/00 ; C01D1/02 ; B01D53/56 ; B01D53/94 ; B01J8/02 ; C01G28/00 ; C01G30/00
摘要：
The mixed oxide of the invention mainly consists of cerium oxide and of at least one oxide of another rare earth. It has a specific surface area of at least 20 m2/g after calcining at 1000° C. for 5 hours. It is obtained by forming a liquid medium comprising a cerium compound; by heating this medium; by adding to the precipitate obtained a compound of the other rare earth, by heating the medium thus obtained and by bringing its pH to a basic value and by calcining the precipitate. The mixed oxide may be used as a catalyst support.
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