公开(公告)号：WO2005035481A3

公开(公告)日：2005-06-02

申请号：PCT/EP2004011022

申请日：2004-10-02

Applicant: BASF AG ,  REIF WOLFGANG ,  HAMMER HANS ,  RUIDER GUENTHER ,  MEIER ANTON ,  BUSKENS PHILIPP ,  FRAUENKRON MATTHIAS

Inventor： REIF WOLFGANG ,  HAMMER HANS ,  RUIDER GUENTHER ,  MEIER ANTON ,  BUSKENS PHILIPP ,  FRAUENKRON MATTHIAS

IPC: C07C213/10 ,  C07C215/12

CPC classification number: C07C213/10 ,  C07C215/12

Abstract: The invention relates to a method for distillative separation of triethanolamin from a substance mixture consisting of mono- di-, and triethanolamin, ethanolamin-ether and water obtainable by an ammonia and ethylene oxide reaction in a liquid phase at a high pressure and temperature consisting in distilling the substance mixture in two stages. In the first stage, a low-boiling fraction and a high-boiling fraction are withdrawn and discharged, and in the second stage, a medium-boiling fractions is distilled at a triethanolamin content >99.4 % by weight and a diethanolamin content

Abstract translation: 一种用于三乙醇胺的从图像在压力下，并在一，二和三乙醇胺的升高的温度下混合，以及乙醇胺醚和水，通过氨与环氧乙烷在液相中反应而获得的连续蒸馏分离工艺，其中在两个阶段中蒸馏该混合物 是。 在第一阶段中的低沸点馏分和高沸点馏分被取出和排出并在第二阶段中，中间沸点馏分蒸馏具有<0.2重量％的> 99.4重量％三乙醇胺的含量和二乙醇胺。 该混合物的蒸馏在第一列中优选进行和相互连接该第二塔或间壁塔。