Method for the continuous production of a compound that carries at least two functional groups
申请人:Stuer Wolfram
公开号:US20060178525A1
公开(公告)日:2006-08-10
A process for continuously preparing a compound which bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group, comprising the steps of a) adding two terminal olefins which bear the functional groups required to prepare the compound as per a1) containing at least two functional groups, in the presence of a compound as per a3) which is suitable as a catalyst for this addition and is homogeneous with respect to the reaction mixture to obtain a mixture comprising a1) a compound which is obtained by monoaddition of the two terminal olefins mentioned and bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group, a2) a compound which is obtained by polyaddition of the two terminal olefins mentioned and a3) the compound which is suitable as a catalyst for this addition and is homogeneous with respect to the reaction mixture, b) distilling the mixture obtained in step a) to obtain b1) the compound which is obtained by monoaddition of the two terminal olefins mentioned and bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group, as the top product and b2) a mixture comprising
b2
a
) a compound which is obtained by monoaddition of the two terminal olefins mentioned and bears at least two functional groups which are each independently selected from the group consisting of nitrile group, carboxylic acid group, carboxylic ester group and carboxamide group,
b2
b
) a compound which is obtained by polyaddition of the two terminal olefins mentioned and
b2
c
) the compound which is suitable as a catalyst for this addition and is homogeneous with respect to the reaction mixture,
c) separating the entire mixture obtained in step b2) or a portion thereof by means of a semipermeable membrane to obtain a permeate and a retentate, in such a way that the weight ratio of component b2
b
) to component b2
c
) in the mixture b2) fed in step c) is smaller than in the retentate, d) recycling the permeate obtained in step b2) partly or fully into step a) and e) recycling the portion of the mixture obtained in step b2) which has not been separated in c) partly or fully into step a).
一种连续制备含有至少两个官能团的化合物的工艺,这些官能团各自独立地选 自由腈基、羧酸基、羧酸酯基和羧酰胺基组成的组,该工艺包括以下步骤 a) 加入两个含有制备 a1)所述含有至少两个官能团的化合物所需的官能团的末端烯烃、在 a3)所述化合物存在下,该化合物适合作为该加成反应的催化剂,且相对于反应混合物而言是均相的,从而得到一种混合物,该混合物包含 a1) 通过上述两种末端烯烃单加成得到的化合物,该化合物带有至少两个官能团,这两个官能团分别独立地选自腈基团、羧酸基团、羧基酰胺基团和羧基酰胺基团组成的组、a2)通过上述两种末端烯烃的加成反应得到的化合物;以及 a3)适合作为该加成反应的催化剂,且相对于反应混合物是均相的化合物、b) 蒸馏步骤 a) 中得到的混合物,得到 b1) 由上述两种末端烯烃单加成得到的化合物,该化合物带有至少两个官能团,这 些官能团分别独立地选自腈基、羧酸基、羧酸酯基和羧酰胺基组成的组,作为最上层产 物;以及 b2) 一种混合物,其中包括
b2
a
)化合物,该化合物由上述两种末端烯烃单加成得到,并带有至少两个官能团,这两个官能团各自独立地选 自腈基、羧酸基、羧酸酯基和羧酰胺基组成的组、
b2
b
)通过上述两种末端烯烃的加成反应得到的化合物,以及
b2
c
)化合物,该化合物适合作为该加成反应的催化剂,且相对于反应混合物是均相的、
c) 通过半透膜分离步骤 b2) 中得到的整个混合物或其中的一部分,以得到渗透液和回流液,分离的方式应使成分 b2
b
)与成分 b2
c
d) 将步骤 b2) 中得到的渗透液部分或全部回收到步骤 a) 中,以及 e) 将步骤 b2) 中得到的混合物中未在 c) 中分离的部分部分或全部回收到步骤 a) 中。)