[EN] PROCESS FOR MANUFACTURING ALKYLENEAMINE COMPOUNDS<br/>[FR] PROCÉDÉ DE PRODUCTION DE COMPOSÉS D'ALKYLÈNEAMINE
申请人:NOURYON CHEMICALS INT BV
公开号:WO2020161146A1
公开(公告)日:2020-08-13
The invention pertains to a process for manufacturing alkyleneamine compounds, comprising the steps of - in a reaction medium reacting an alkyleneurea compound comprising at least one primary amine group, or at least one cyclic secondary amine group, or at least one primary amine group and at least one cyclic secondary amine group, and at least one cyclic alkyleneurea group of formula I wherein A is selected from the group of C2 to C4 alkylene units, optionally substituted by one or more C1 to C3 alkyl groups, with an alkylhalide compound to form an alkyleneamine hydrohalide salt comprising at least one cyclic alkyleneurea group of formula I, the alkylhalide compound being selected from the group of haloalkanes with 2-6 halogen atoms, and haloaminoalkanes, and - reacting the alkyleneamine hydrohalide salt with a base to form an alkyleneamine compound comprising at least one cyclic alkyleneurea group of formula I. In one embodiment the reaction is carried out in the presence of one or more of ammonia and additional alkyleneamine compound. The process according to the invention produces less cyclic and branched side products and more straight-chain higher alkyleneamines than conventional processes, in particular more straight-chain ethyleneamines selected from L-TETA, L-TEPA, and L-PEHA.
本发明涉及一种制造烷基亚胺化合物的过程,包括以下步骤:在反应介质中,将至少含有一个一级胺基、至少含有一个环状二级胺基或至少含有一个一级胺基和至少含有一个环状二级胺基的烷基脲化合物,以及至少含有一个式I的环状烷基脲基团,其中A选择自C2至C4烷基单元组,可以选择性地被一个或多个C1至C3烷基取代,与一种烷基卤化物反应,形成至少含有一个式I的环状烷基亚胺氢卤酸盐,所述烷基卤化物选择自具有2-6个卤素原子的卤代烷烃和卤代氨基烷,然后将所述烷基亚胺氢卤酸盐与碱反应,形成至少含有一个式I的环状烷基亚胺化合物。在一种实施方式中,反应在氨和额外的烷基亚胺化合物存在下进行。本发明的过程产生的环状和分支副产品较少,直链高烷基亚胺化合物较多,特别是选择自L-TETA,L-TEPA和L-PEHA的直链乙烯亚胺化合物。