发明名称 |
CATALYST AND METHOD FOR PRODUCING PHTHALIC ANHYDRIDE |
摘要 |
The present invention relates to a catalyst, in particular for the preparation of phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, having an inert support and at least one layer which has been applied thereto and has a catalytically active composition comprising TiO2, characterized in that at least a portion of the TiO2 used has the following properties: (a) the BET surface area is more than 15 m2/g, (b) the primary crystal size is more than 210 ångstrøm. Also described is a preferred process for preparing such a catalyst, and the preferred use of the titanium dioxide used in accordance with the invention. |
申请公布号 |
EP1890813(A1) |
申请公布日期 |
2008.02.27 |
申请号 |
EP20050808201 |
申请日期 |
2005.11.28 |
申请人 |
SUED-CHEMIE AG |
发明人 |
ESTENFELDER, MARVIN;HARTSBERGER, HELMUT;GUECKEL, CHRISTIAN |
分类号 |
B01J35/10;B01J23/22;B01J27/198;B01J35/00;B01J35/02;C07C51/265;C07C51/31 |
主分类号 |
B01J35/10 |
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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