发明名称 |
Process for producing a vanadium-phosphorus oxide catalyst precursor |
摘要 |
A process for producing a vanadium-phosphorus oxide-containing catalyst precursor, which comprises (a) introducing into an organic solvent a vanadium alkoxide as a pentavalent vanadium compound and a phosphorus compound in the presence of a reducing agent capable of reducing the pentavalent vanadium compound to a tetravalent state, (b) hydrolyzing at least a part of the vanadium alkoxide before or after the introduction of the phosphorus compound, and (c) heating the vanadium-containing liquid medium obtained in step (b), in the presence of the phosphorus compound to reduce at least a part of vanadium to a tetravalent state.
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申请公布号 |
US5496787(A) |
申请公布日期 |
1996.03.05 |
申请号 |
US19940187715 |
申请日期 |
1994.01.28 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
HATANO, MASAKATSU;MURAYAMA, MASAYOSHI;SHIMA, KENJI;ITO, MASUMI |
分类号 |
B01J23/22;B01J27/198;C07C51/215;C07C57/05;(IPC1-7):B01J23/22 |
主分类号 |
B01J23/22 |
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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