公开(公告)号：US06974880B2

公开(公告)日：2005-12-13

申请号：US10780097

申请日：2004-02-17

申请人： Klaus Biskup ,  Peter Keldenich ,  Peter Fuhrmann ,  Christian Six

发明人： Klaus Biskup ,  Peter Keldenich ,  Peter Fuhrmann ,  Christian Six

IPC分类号： B01F5/04 ,  B01J10/00 ,  C07C263/10 ,  C07C265/14 ,  C07C263/00

CPC分类号： B01F5/0453 ,  B01F5/0456 ,  B01J10/002 ,  C07C263/10 ,  C07C265/14

摘要： The present invention relates to a process for the manufacture of diisocyanates by phosgenation of the corresponding diamines in which the vaporous diamines, optionally rarefied with an inert gas or with the vapors of an inert solvent, and phosgene are heated separately to temperatures of about 200° C. to about 600° C. and mixed and reacted in a tube reactor characterized in that a number n≧2 of nozzles directed parallel to the axis of the tube reactor are arranged in the tube reactor, the diamine-containing stream being fed into the tube reactor through the n nozzles and the phosgene stream being fed into the tube reactor through the remaining free space.

摘要翻译： 本发明涉及通过相应的二胺的光气化制备二异氰酸酯的方法，其中将惰性气体或惰性溶剂的蒸气任选稀释的气态二胺和光气分别加热至约200℃的温度 在约600℃下，并在管式反应器中混合并反应，其特征在于，在管式反应器中排列平行于管式反应器轴线排列的n = 2的喷嘴，将含二胺的料流 通过n个喷嘴进入管式反应器，并且光气流通过剩余的自由空间进入管式反应器。