INTEGRATED PROCESS TO CO-PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND TRANS-1,3,3,3-TETRAFLUOROPROPENE

Title:

INTEGRATED PROCESS TO CO-PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND TRANS-1,3,3,3-TETRAFLUOROPROPENE

Document Type and Number:

WIPO Patent Application WO/2011/126692

Kind Code:

A3

Abstract:

The disclosed integrated manufacturing process includes a combined liquid phase reaction and purification operation which directly produces trans-1-chloro-3,3,3-trifluoropropene and 3-chloro-1,1,1,3-tetrafluoropropane which is a precursor to the manufacture of trans-1,3,3,3-tetrafluoropropene. The mixture of co-products is easily separated by conventional distillation and 3-chloro-1,1,1,3-tetrafluoropropane is then dehydrochlorinated to produce trans-1,3,3,3-tetrafluoropropene by contacting in the liquid phase with a caustic solution or in the vapor phase using a dehydrochlorination catalyst.

Inventors:

MERKEL DANIEL C (US)
JOHNSON ROBERT (US)
TUNG HSUEH SUNG (US)
WANG HAIYOU (US)
POKROVSKI KONSTANTIN A (US)

Application Number:

PCT/US2011/028798

Publication Date:

January 05, 2012

Filing Date:

March 17, 2011

Export Citation:

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Assignee:

HONEYWELL INT INC (US)
MERKEL DANIEL C (US)
JOHNSON ROBERT (US)
TUNG HSUEH SUNG (US)
WANG HAIYOU (US)
POKROVSKI KONSTANTIN A (US)

International Classes:

C07C17/20; B01J27/10; C07C17/23; C07C21/18

Domestic Patent References:

WO2010035748A1

2010-04-01

Foreign References:

US20070238908A1	2007-10-11
US5710352A	1998-01-20
US6235951B1	2001-05-22
EP0939071A1	1999-09-01

Other References: