发明名称 |
Process for the preparation of 3 to 5 C-atoms containing alpha, beta-monoethylenic unsaturated aldehydes, carboxylic acids and nitriles |
摘要 |
<p>Process for the preparation of alpha , beta -monoethylenic unsaturated aldehydes, carboxylic acids or nitriles containing 3 to 5 C atoms by catalytic gas phase oxidation or ammoxidation of a reduced form of the desired compound in a multitube fixed-bed reactor charged with catalytically active multimetal oxides, in which the volume-specific activity of the catalytic charge decreases abruptly, successively, stepwise and/or continuously along the contact tubes in the flow direction.</p> |
申请公布号 |
EP0614868(B1) |
申请公布日期 |
1996.09.25 |
申请号 |
EP19940103357 |
申请日期 |
1994.03.05 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
NEUMANN, HANS-PETER, DR.;HERZOG, KLAUS, DR. |
分类号 |
B01J23/88;B01J35/00;B01J37/02;C07B41/06;C07B41/08;C07B43/08;C07B61/00;C07C45/34;C07C45/35;C07C47/22;C07C51/25;C07C57/05;C07C57/055;C07C253/26;C07C255/07;C07C255/57;(IPC1-7):C07C45/35;C07C45/37 |
主分类号 |
B01J23/88 |
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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