Azeotrope of HF and 1233zd

Details Azeotrope of HF and 1233zd Azeotrope of HF and 1233zd

1998-03-05

2000-01-11

Wilson, James O.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570164, 570165, 570166, 570167, 570168, 570169, 570177, 570180, C07C 1738

Patent

active

060138467

ABSTRACT:
An azeotrope containing HF and 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 245fa. 245fa is a known foam blowing agent and refrigerant.

REFERENCES:
patent: 5414165 (1995-05-01), Nappa et al.
patent: 5545774 (1996-08-01), Rao
patent: 5616819 (1997-04-01), Boyce et al.
patent: 5710352 (1998-01-01), Tung
patent: 5763706 (1998-06-01), Tung et al.
patent: 5874658 (1999-02-01), Belter

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