公开(公告)号：US08686182B2

公开(公告)日：2014-04-01

申请号：US13661652

申请日：2012-10-26

Applicant: BASF SE

Inventor： Julia Leschinski ,  Torsten Mattke ,  Gerrit Waters ,  Eckhard Stroefer

IPC: C07C263/00

CPC classification number: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a process for preparing isocyanates and/or polyisocyanates by reacting the corresponding amines with phosgene, optionally in the presence of an inert medium, in a reactor (1), a first reactant stream comprising the amine being supplied to the reactor (1) in liquid form, and a second reactant stream comprising the phosgene being supplied to the reactor in gaseous form. The reactor is a centrifugal reactor (1) having a packing (9) which rotates about a central axis (7) in a housing (13), the first reactant stream and the second reactant stream being supplied to the rotating packing (9) such that the reactant streams are mixed due to the centrifugal force in the rotating packing (9) and are transported outward, the mixing in the rotating packing (9) resulting in reaction of the phosgene with the amine to give the corresponding isocyanate or polyisocyanate.

Abstract translation: 本发明涉及一种制备异氰酸酯和/或多异氰酸酯的方法，该方法通过使反应器（1）中任选在存在惰性介质的情况下使相应的胺与光气反应，将包含胺的第一反应物流供应至反应器 1），并且包含以气体形式供应到反应器的光气的第二反应物流。 反应器是具有在壳体（13）中围绕中心轴线（7）旋转的填料（9）的离心反应器（1），第一反应物流和第二反应物流被供应到旋转填料（9） 由于旋转填料（9）中的离心力将反应物流混合并向外输送，在旋转填料（9）中的混合导致光气与胺的反应，得到相应的异氰酸酯或多异氰酸酯。