公开(公告)号：EP0940382A1

公开(公告)日：1999-09-08

申请号：EP99301469.5

申请日：1999-02-26

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Wismer, John A. ,  Bolmer, Michael S. ,  Chen, Bin

IPC: C07C17/38 ,  C07C19/08

CPC classification number: C07C21/18 ,  C07C17/00 ,  C07C17/38 ,  C07C17/383

Abstract: An azeotrope containing HF and 1,1,1-trifluoro-3-chloro-2-propene (1233zd) is provided, as are methods for separating this azeotrope from mixtures of HF and 1233zd which are HF-rich or 1233zd-rich and methods for making use of the azeotrope and separation methods to improve processes for preparing 1233zd, an intermediate used in the preparation of 1,1,1,3,3,-pentafluoropropane (245f), which is a known foam blowing agent and refrigerant.

Abstract translation: 提供了含有HF和1,1,1-三氟-3-氯-2-丙烯（1233zd）的共沸物，从HF和1233zd的HF和1233zd富集的混合物中分离出这种共沸物的方法，以及方法 利用共沸物和分离方法改进制备1233zd的方法，该制备方法是制备作为已知的泡沫发泡剂和制冷剂的1,1,1,3,3-五氟丙烷（245f）的中间体。