公开(公告)号：US20120289746A1

公开(公告)日：2012-11-15

申请号：US13467371

申请日：2012-05-09

申请人： Ulrich Penzel ,  Siegfried Richter ,  Ulrich Juedes ,  Matthias Neumann ,  Hermann Lachmann

发明人： Ulrich Penzel ,  Siegfried Richter ,  Ulrich Juedes ,  Matthias Neumann ,  Hermann Lachmann

IPC分类号： C07C209/62

CPC分类号： C07C209/62 ,  C07C211/51

摘要： The invention relates to a process for working up a stream (3) comprising from 5 to 90% by weight of isocyanate by hydrolysis of the isocyanate by means of water in a reactor (1), in which the isocyanate-comprising stream (3) is introduced to the reactor (1) via a first inlet and the water is introduced via a second inlet, the isocyanate is reacted with the water in the reactor to form the corresponding: diamine, a diamine-comprising product mixture is taken off from the reactor (1) via a product outlet, wherein part of the product mixture is recirculated to the reactor and the isocyanate-comprising stream (3) is introduced into the recirculated product stream (7), with the isocyanate-comprising stream (3) being introduced continuously without interruption and the molar ratio of H-acid compounds of the hydrolyzate to isocyanate groups of the stream introduced being kept in the range from 10 to 200.

摘要翻译： 本发明涉及一种通过在反应器（1）中水分异氰酸酯水解反应器（1）来处理包含5至90重量％异氰酸酯的流（3）的方法，其中含异氰酸酯的料流（3） 经由第一入口引入反应器（1）并且通过第二入口引入水，异氰酸酯与反应器中的水反应形成相应的二胺，将含二胺的产物混合物从 反应器（1）通过产品出口，其中部分产物混合物再循环到反应器中，并且含异氰酸酯的料流（3）被引入再循环产物流（7）中，含异氰酸酯的料流（3）为 不间断地连续引入，引入的流的水解产物的H酸化合物与异氰酸酯基团的摩尔比保持在10〜200的范围内。