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2. 发明授权

US4586987A Obtaining C.sub.1 -C.sub.4 -alkyl pentenoates by distillation 失效
标题翻译：通过蒸馏获得戊烯酸C1-C4烷基酯
公开(公告)号：US4586987A
公开(公告)日：1986-05-06
申请号：US721810
申请日：1985-04-10
申请人： Heinz-Walter Schneider , Rudolf Kummer , Otto Leman , Paul Panitz
发明人： Heinz-Walter Schneider , Rudolf Kummer , Otto Leman , Paul Panitz
IPC分类号： B01J31/00 , B01J31/20 , C07B61/00 , C07C67/38 , C07C69/533 , B01D3/34 , C07C67/54
CPC分类号： C07C67/54
摘要： C.sub.1 -C.sub.4 -alkyl pentenoates are obtained from reaction mixtures which contain this and which are obtained by reacting butadiene, or a butadiene-containing hydrocarbon mixture, with carbon monoxide and a C.sub.1 -C.sub.4 -alkanol, in the presence of a cobalt carbonyl catalyst and a tertiary nitrogen base at elevated temperatures and under superatmospheric pressure by a process in which(a) the liquid reaction mixture freed from excess carbon monoxide is treated with hydrogen at elevated temperatures and under from 5 to 80 bar,(b) hydrocarbons are distilled off from the resulting liquid reaction mixture,(c) the C.sub.1 -C.sub.4 -alkyl pentenoate, the alkanol and the nitrogen base are then distilled off under reduced pressure, and(d) the C.sub.1 -C.sub.4 -alkyl pentenoate is obtained by fractional distillation from the distillate containing this compound, the alkanol and the tertiary nitrogen base.
摘要翻译：由含有这一点的反应混合物获得戊烯酸C 1 -C 4烷基酯，其通过使丁二烯或含丁二烯的烃混合物与一氧化碳和C 1 -C 4烷醇在羰基钴催化剂存在下反应获得，在高温和超大气压下，通过一种方法，（a）在高温和5至80巴下用氢处理脱除过量一氧化碳的液体反应混合物，（b）将烃蒸馏掉，从所得液体反应混合物中，（c）戊烯酸C 1 -C 4烷基酯，然后在减压下蒸馏除去链烷醇和氮碱，并且（d）戊烯酸C1-C4烷基酯是通过从含有该化合物的馏出物，链烷醇和叔氮碱。

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