Indian Patents
Title of Invention

"PROCESS FOR THE PREPARATION OF 2,3,3,3,-TRIFLUOROPROPENE"
Abstract The invention provides a process for the preparation of 1234yf comprising (a) contacting 1,1,2,3,3,3-hexafluoropropene (1216) with hydrogen in the presence of a hydrogenation catalyst to produce 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorinating 236ea to produce 1,2,3,3,3-pentafluoropropene (1225ye); (c) contacting 1225ye with hydrogen in the presence of a hydrogenation catalyst to produce 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorinating 245eb to produce 1234yf.
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Patent Number 268406
Indian Patent Application Number 7835/DELNP/2010
PG Journal Number 36/2015
Publication Date 04-Sep-2015
Grant Date 28-Aug-2015
Date of Filing 04-Nov-2010
Name of Patentee MEXICHEM AMANCO HOLDING S.A. DE C.V.
Applicant Address RIO SAN JAVIER NO. 10, FRACCIONAMIENTO, VIVEROS DEL RIO, TLALNEPANTLA 54060, MEXICO
Inventors:
# Inventor's Name Inventor's Address
1 SMITH JOHN WILLIAM MEXICHEM UK LIMITED, PO BOX 13, THE HEALTH, RUNCORN, CHESHIRE WA7 4QF, UNITED KINGDOM
2 MCGUINESS CLAIRE MEXICHEM UK LIMITED, PO BOX 13, THE HEALTH, RUNCORN, CHESHIRE WA7 4QF, UNITED KINGDOM
3 SHARRATT ANDREW PAUL MEXICHEM UK LIMITED, PO BOX 13, THE HEALTH, RUNCORN, CHESHIRE WA7 4QF, UNITED KINGDOM
4 TAYLOR ANDREW MARK 19 BEWLEY COURT, GREAT BOUGHTON, CHESTER CH3 5XY, UNITED KINGDOM
PCT International Classification Number C07C 17/25
PCT International Application Number PCT/GB2009/001263
PCT International Filing date 2009-05-15
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 0808836.1 2008-05-15 U.K.