发明名称 |
PREPARATION OF VANADIUM PHOSPHORUS CATALYSTS USING OLEFINIC HALOGENATED ORGANIC REACTION MEDIA |
摘要 |
<p>The present invention provides a process for the preparation of oxidation catalysts containing mixed oxides of vanadium and phosphorus, which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapor phase to produce high yields of maleic anhydride with good selectivity. A vanadium compound is introduced into an olefinic halogenated organic liquid medium, a phosphorus-containing compound is added to the medium, reduction of at least a portion of the vanadium to a +4 valence state is effected either prior to or subsequent to the addition of the phosphorus-containing compound, and the resulting vanadium-phosphorus oxide catalyst precursor is recovered, dried and calcined.</p> |
申请公布号 |
CA1164439(A) |
申请公布日期 |
1984.03.27 |
申请号 |
CA19810380498 |
申请日期 |
1981.06.24 |
申请人 |
STANDARD OIL COMPANY (THE) |
发明人 |
LEMANSKI, MICHAEL F.;BREMER, NOEL J.;MILBERGER, ERNEST C. |
分类号 |
C07D307/60;B01J27/18;B01J27/198;C01B25/37;C01B25/45;C07B61/00;C07C51/215;C07C51/25;(IPC1-7):B01J27/14 |
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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