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公开(公告)号:US2207554A
公开(公告)日:1940-07-09
申请号:US19510438
申请日:1938-03-10
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公开(公告)号:US5159107A
公开(公告)日:1992-10-27
申请号:US784138
申请日:1991-10-29
申请人: Paul Panitz , Heinrich Reitz , Gunter Schuch , Wilfried Seyfert
发明人: Paul Panitz , Heinrich Reitz , Gunter Schuch , Wilfried Seyfert
IPC分类号: C07C67/38 , B01J31/02 , B01J31/20 , C07B61/00 , C07C69/003 , C07C69/52 , C07C69/533
CPC分类号: C07C69/52
摘要: A process for the continuous preparation of alkyl pentenoates comprises the following steps:a) reaction of a butadiene-containing C.sub.4 cut with an alkanol and carbon monoxide in the presence of a cobalt carbonyl catalyst and heterocyclic aromatic tertiary nitrogen base at from 100.degree. to 160.degree. C. and under from 100 to 1,200 bar andb) treatment of the resulting reaction mixture, at the rate at which it is obtained, in a treatment zone, at from 100.degree. to 160.degree. C. under from 250 to 1,200 bar with a residence time of from 5 to 60 minutes, substantially without back-mixing.
摘要翻译: 连续制备戊烯酸烷基酯的方法包括以下步骤:a)在羰基羰基催化剂和杂环芳族叔氮碱的存在下,将含丁二烯的C4馏分与链烷醇和一氧化碳反应,从100到160 在100至1200巴条件下,和b)在250-1200巴条件下,在100-160℃下,在处理区中以所得速度处理得到的反应混合物, 停留时间为5至60分钟,基本上无回混。
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公开(公告)号:US4360695A
公开(公告)日:1982-11-23
申请号:US337684
申请日:1982-01-07
IPC分类号: C07C55/14 , B01J31/00 , B01J31/10 , C07B61/00 , C07C27/02 , C07C51/00 , C07C51/09 , C07C67/00 , B01D3/14
CPC分类号: C07C51/09 , Y10S203/20
摘要: In a process for the continuous preparation of adipic acid by hydrolysis of C.sub.1 -C.sub.4 -alkyl adipates with water at an elevated temperature in the presence of a strongly acidic ion exchanger, the improvement that the esters and excess water are fed to the middle section of a column, reaction mixture is taken off at a plurality of trays of the column below the feed point, passed over a strongly acidic ion exchanger and recycled, alkanols or alkanol/water mixtures are taken off at the top of the column and an aqueous solution of adipic acid is taken off at the bottom of the column.
摘要翻译: 在强酸性离子交换剂存在下,通过在高温下水解C1-C4烷基己二酸酯连续制备己二酸的方法中,将酯和过量的水加入到中间部分 柱子,反应混合物在进料点下方的塔的多个塔板中取出,通过强酸性离子交换剂并再循环,链烷醇或链烷醇/水混合物在塔顶馏去,水溶液 的己二酸在塔的底部取出。
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