Procédé de fabrication trans–1234ze à HFC intégré
| N° de brevet: |
EP1900716 (A1) |
| Date de publication: |
2008-03-19 |
| Inventeur(s): |
WANG HAIYOU [US];TUNG HSUEH SUNG [US];CHIU YUON [US];CERRI GUSTAVO [US];COTTRELL STEPHEN A [US]; |
| Demandeur(s): |
HONEYWELL INT INC [US]; |
| Classification: |
C07C17/25;C07C21/18; |
| N° de demande: |
EP20070253337 20070823 |
| Numéro(s) de priorité: |
US20060839874P 20060824;US20070657354 20070124 |
An integrated process for the manufacture of HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze) by first catalytically dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture ofcis-1.3,3,3-tetrafluoropropene, trans-1.3.3,3-tetrafluoropropene and hydrogen fluoride. Then optionally recovering hydrogen fluoride, catalytically isomerizing cis-1234ze into trans- 1234ze, and recovering trans-1,3,3,3-tetrafluoropropene.
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