公开(公告)号：US20120302783A1

公开(公告)日：2012-11-29

申请号：US13437093

申请日：2012-04-02

申请人： Robert BAUMANN ,  Markus Christian Biel ,  Axel Franzke ,  Alfred Oftring ,  Friedhelm Teich ,  Paul Klingelhoefer ,  Marie Katrin Schröter

发明人： Robert BAUMANN ,  Markus Christian Biel ,  Axel Franzke ,  Alfred Oftring ,  Friedhelm Teich ,  Paul Klingelhoefer ,  Marie Katrin Schröter

IPC分类号： C07C227/02

CPC分类号： C07C227/02

摘要： What is proposed is a process for preparing aminopolycarboxylates proceeding from the corresponding polyalkanolamines by oxidative dehydrogenation in the presence of a catalyst comprising 1 to 90% by weight of copper, based on the total weight of the catalyst, using a base, which comprises first performing a partial conversion of the polyalkanolamine to a reaction mixture comprising the aminopolycarboxylate at a temperature in the range from 140 to 180° C. until at least 10 to 90 mol % of the polyalkanolamine has been depleted, and then continuing the conversion at elevated temperature.

摘要翻译： 提出的是一种制备在相应的聚链烷醇胺上通过氧化脱氢在催化剂存在下进行的氨基多羧酸盐的方法，所述催化剂包含1至90重量％的铜，基于催化剂的总重量，使用碱，其包括首先进行 在140〜180℃的温度范围内将聚链烷醇胺部分转化成含有氨基多羧酸盐的反应混合物，直到聚链烷醇胺的至少10〜90摩尔％已经耗尽，然后在升高的温度下继续转化。