发明名称 |
Phosphorus/vanadium catalyst preparation |
摘要 |
A process for preparing a catalyst for maleic anhydride production wherein a +5 vanadium compound such as V2O5, an anhydrous phosphoric acid, and optionally promoters are admixed in an organic alcohol solvent, the admixture is rapidly brought to reflux and thereafter refluxed to reduced the vanadium compound to the desired degree, the reflux mixture is cooled, precursor crystals are separated by filtration and then dried and calcined.
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申请公布号 |
US6858561(B2) |
申请公布日期 |
2005.02.22 |
申请号 |
US20030438425 |
申请日期 |
2003.05.15 |
申请人 |
SCIENTIFIC DESIGN COMPANY, INC.;LONZA S.P.A. |
发明人 |
BORTINGER ARIE;MAZZONI GIANLUCA;MONTI TIZIANA |
分类号 |
B01J27/198;B01J27/199;B01J37/08;C07C51/215;(IPC1-7):B01J27/198;B01J27/14;B01J27/188;B01J27/19;B01J27/192 |
主分类号 |
B01J27/198 |
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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