发明名称 |
PREPARATION OF 1,4-BUTANEDIOL |
摘要 |
A process for the preparation of 1,4-butanediol by catalytically hydrogenating maleic anhydride in the presence of an alcohol, at elevated temperature and elevated pressure and with the aid of a cobalt-containing catalyst comprises partially hydrogenating the reaction mixture in a first hydrogenation step at from 100 DEG to 200 DEG C. and at from 30 to 200 bar and subsequently post-hydrogenating the product of this first hydrogenation step, without further work-up at higher temperature and pressure than in the first hydrogenation step, in a second hydrogenation step at from 200 DEG to 300 DEG C. and at from 200 to 350 bar.
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申请公布号 |
US5073650(A) |
申请公布日期 |
1991.12.17 |
申请号 |
US19910672671 |
申请日期 |
1991.03.20 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
STABEL, UWE;GOSCH, HANS-JUERGEN;FISCHER, ROLF;HARDER, WOLFGANG;HECHLER, CLAUS |
分类号 |
B01J23/889;B01J23/75;C07B61/00;C07C29/149;C07C29/17;C07C31/20 |
主分类号 |
B01J23/889 |
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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