公开(公告)号：US5861528A

公开(公告)日：1999-01-19

申请号：US785827

申请日：1997-01-15

申请人： Masamitsu Inomata ,  Masahiro Takeno ,  Akio Numa ,  Hiroki Mizutani ,  Masanobu Ebina ,  Isao Fukada

发明人： Masamitsu Inomata ,  Masahiro Takeno ,  Akio Numa ,  Hiroki Mizutani ,  Masanobu Ebina ,  Isao Fukada

IPC分类号： B01J3/04 ,  B01J19/14 ,  B01J19/18 ,  C07C253/30 ,  C07C255/00

CPC分类号： B01J3/04 ,  B01J19/14 ,  B01J19/18 ,  C07C253/30 ,  B01J2219/00094 ,  B01J2219/00166 ,  B01J2219/00182 ,  B01J2219/00189 ,  B01J2219/185 ,  B01J2219/1942 ,  B01J2219/1943 ,  C07C2102/42

摘要： In a process for preparing a Diels-Alder addition product of a conjugated diolefin and acrylonitrile by reacting the conjugated diolefin with acrylonitrile, a vessel type reactor is used. The pressure of the gaseous phase in the reactor is increased by using an inert gas in the reaction. A premixed solution of the conjugated diolefin or a compound which produces the conjugated diolefin in the reactor and acrylonitrile is released through an upper portion of the reactor into the gaseous phase and then dropped into a liquid phase to react. A reaction product is taken out through a lower portion of the reactor. The process can be carried out continuously in a safe manner over an extended period of time without any adhesion of an insoluble polymer to the reactor or to the inlet or outlet pipes, and without sudden pressure fluctuations.

摘要翻译： 在通过使共轭二烯烃与丙烯腈反应制备共轭二烯烃和丙烯腈的Diels-Alder加成产物的方法中，使用容器型反应器。 通过在反应中使用惰性气体来增加反应器中气相的压力。 共轭二烯烃或在反应器和丙烯腈中产生共轭二烯烃的化合物的预混溶液通过反应器的上部释放到气相中，然后滴入液相中反应。 通过反应器的下部取出反应产物。 该方法可以在长时间内以安全的方式连续进行，而不会使不溶性聚合物粘附到反应器，入口或出口管，并且没有突然的压力波动。