The present invention relates to a process to prepare ethyleneamines of the formula NH2—(C2H4—NH—)pH wherein p is at least 2 wherein one or more units —NH—C2H4—NH— are present as a piperazine unit or precursors thereof wherein optionally one or more units —NH—C2H4—NH— are present as a cyclic ethylene urea unit or between two units —NH—C2H4—NH— a carbonyl moiety is present, by reacting an ethanolamine-functional compound, an amine-functional compound in the presence of a carbon oxide delivering agent, wherein at least one of the amine-functional compound or the ethanolamine-functional compound contains a piperazine unit, and the reaction is performed in a liquid that comprises water.
本发明涉及一种制备式 NH2-(
C2H4-NH-)pH(其中 p 至少为 2)的
乙烯胺的工艺,其中一个或多个单元 -NH- -NH- 作为
哌嗪单元或其前体存在,其中任选一个或多个单元 -NH- -NH- 作为环状
乙烯脲单元存在或在两个单元 -NH- -NH- 之间存在一个羰基、使
乙醇胺官能团化合物和胺官能团化合物在氧化碳传递剂存在下反应,其中胺官能团化合物或
乙醇胺官能团化合物中至少有一个含有
哌嗪单元,反应在含
水的液体中进行。