公开(公告)号：US20240059648A1

公开(公告)日：2024-02-22

申请号：US18038031

申请日：2021-11-23

Applicant: BASE SE

Inventor： Kai THIELE ,  Jens FERBITZ ,  Torsten MATTKE

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention concerns a process for the preparation of isocyanates and/or polyisocyanates by reacting the corresponding amines with phosgene in a reactor, where isocyanates are obtained from a mixture of amines in gaseous or liquid form and phosgene in gaseous form, wherein no liquid solvents are used in the feeding, mixing, reacting, cooling, separating and purifying steps of the process.