PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE

Title:

PROCESS FOR PRODUCING 1,1,1,3,3-PENTAFLUOROPROPANE

Document Type and Number:

WIPO Patent Application WO/1997/024307

Kind Code:

A1

Abstract:

A process for producing 1,1,1,3,3-pentafluoropropane which involves the first step of reacting in a gas phase 1,1,1,3,3-pentachloropropane with hydrogen fluoride to thereby give 1,1,1-trifluoro-3-chloro-2-propene; and the second step of reacting in a gas phase the above 1,1,1-trifluoro-3-chloro-2-propene with hydrogen fluoride to thereby give 1,1,1,3,3-petafluoropropane; wherein the 1,1,1-trifluoro-3-chloro-2-propene obtained in the first step is fed into the second step after eliminating hydrogen chloride formed as the by-product therefrom. Thus an economical and novel process for producing 1,1,1,3,3-pentafluoropropane can be provided in a high yield or at a good selectivity.

Inventors:

NAKADA TATSUO (JP)
AOYAMA HIROKAZU (JP)
YAMAMOTO AKINORI (JP)

Application Number:

PCT/JP1996/002942

Publication Date:

July 10, 1997

Filing Date:

October 08, 1996

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
NAKADA TATSUO (JP)
AOYAMA HIROKAZU (JP)
YAMAMOTO AKINORI (JP)

International Classes:

B01J23/26; B01J27/125; C07B61/00; C07C17/00; C07C17/21; C07C17/25; C07C19/08; C07C21/18; (IPC1-7): C07C19/08; B01J23/26; B01J27/125; C07C17/18; C07C17/21; C07C17/25; C07C21/18

Foreign References:

JPH08239334A	1996-09-17
JPH0873385A	1996-03-19

Other References: