发明名称 |
Hollow cylindrical catalyst and a method for producing a maleic acid anhydride |
摘要 |
A catalyst used in a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms by means of oxygen-containing gases comprises a catalytically active composition comprising vanadium, phosphorus and oxygen and has a essentially hollow cylindrical structure in which (a) the ratio of the height h to the diameter of the continuous hole d2 is not more than 1.5 and (b) the ratio of the geometric surface area Ageo to the geometric volume Vgeo is at least 2 mm-1.
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申请公布号 |
US2003114688(A1) |
申请公布日期 |
2003.06.19 |
申请号 |
US20020220703 |
申请日期 |
2002.09.05 |
申请人 |
WEIGUNY JENS;STORCK SEBASTIAN;TENTEN ANDREAS |
发明人 |
WEIGUNY JENS;STORCK SEBASTIAN;TENTEN ANDREAS |
分类号 |
C07D307/60;B01J27/198;B01J35/00;B01J35/02;C07B61/00;C07C51/215;(IPC1-7):C07D307/34 |
主分类号 |
C07D307/60 |
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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