Process for the preparation of...

Details Process for the preparation of... Process for the preparation of...

2006-06-27

2006-06-27

Richter, Johann (Department: 1621)

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

Organic compounds

Halogen containing

C570S123000, C570S161000

Reexamination Certificate

active

07067705

ABSTRACT:
A convenient and economical process for the preparation of 1,1-dichloro-3,3,3-trifluoropropane (HCFC-243) by the reaction of 1,1,1,3,3-pentachloropropane (HCC-240) with hydrogen fluoride in the presence of an activated hydrofluorination catalyst. Also, the selective fluorination of hydrochlorocarbons and/or hydrochlorofluorocarbons, or mixtures thereof is shown. A HCFC-243 reaction product yield of greater than 40% is obtained.

REFERENCES:
patent: 5710352 (1998-01-01), Tung
patent: 5902912 (1999-05-01), Tung et al.
patent: 6023004 (2000-02-01), Thenappan et al.
patent: 6362383 (2002-03-01), Wilmet et al.
patent: 0 729 932 (1996-09-01), None

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