发明名称 |
Preparation of maleic anhydride |
摘要 |
A catalyst for the preparation of maleic anhydride by vapor phase catalytic oxidation of benzene with a molecular oxygen containing gas comprising a porous inert support of an alkali metal content, calculated as oxide, of at most 0.3% by weight and supported thereon a catalytic substance of a constituent composition comprising (a) 1 mole of vanadium pentoxide, (b) 0.3 to 1.2 moles of molybdenum trioxide, (c) 0.005 to 0.05 moles of phosphorus pentoxide, (d) 0.03 to 0.2 moles of sodium oxide and (d) 0 to 0.05 moles of potassium oxide.
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申请公布号 |
US4118402(A) |
申请公布日期 |
1978.10.03 |
申请号 |
US19770791947 |
申请日期 |
1977.04.28 |
申请人 |
NIPPON SHOKUBAI KAGAKU KOGYO CO., LTD. |
发明人 |
SUZUKI, HIDEO;SATO, TAKAHISA;KUBOTA, TATSUO;OSAKA, SHIGEMI;KOMATSU, SHIGERU |
分类号 |
B01J23/28;B01J27/199;C07C51/31;(IPC1-7):C07D307/60 |
主分类号 |
B01J23/28 |
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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