发明名称 |
Porous group 4 metal oxide and method for preparation thereof |
摘要 |
<p>This invention relates to a porous group 4 metal oxide (preferably titanium oxide) and to a method for preparation thereof The group 4 metal oxide is prepared by adding a particle growth inhibiter to a hydrosol, a hydrogel or a dried product of a hydrous group 4 metal oxide represented by MO (2-x) (OH) 2x (wherein M denotes a group 4 metal and x > 0.1) followed by drying and calcining, to form a product having a specific surface area of 80 m 2 /g or more, a pore volume of 0.2 ml/g or more and a pore sharpness degree of 50% or more. The preparation of the group 4 metal oxide may involve a pH swing operation. The product has excellent heat stability and is useful as a catalyst or a catalyst carrier in which a catalyst metal is highly dispersed.</p> |
申请公布号 |
EP1820779(A2) |
申请公布日期 |
2007.08.22 |
申请号 |
EP20070007481 |
申请日期 |
2002.01.15 |
申请人 |
CHIYODA CORPORATION |
发明人 |
INOUE, SHINICHI;KUDOU, HIDEHIKO;MUTOU, AKIHIRO;ONO, TATEO;MAKABE, TOSHIJI;TAKATSUKA, TORU;NOMURA, HISASHI |
分类号 |
C01G23/04;B01J21/06;B01J23/28;B01J23/85;B01J23/88;B01J23/882;B01J27/188;B01J27/19;B01J32/00;B01J35/10;B01J37/00;B01J37/03;C01G23/053;C01G25/02;C10G45/08 |
主分类号 |
C01G23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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