PROCESS FOR THE PREPARATION OF 1-CHLORO-1,1,3,3,3-PENTAFLUOROPROPANE

PROCESS FOR THE PREPARATION OF 1-CHLORO-1,1,3,3,3-PENTAFLUOROPROPANE

The invention relates to the preparation of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa), useful as an intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa). The invention further relates to a process for the preparation of HFC-245fa comprising reacting HCFC-235fa with hyd...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MADHAVAN, G., V., BINDU, EIBECK, RICHARD, ELMER, ELLIS, LOIS, ANNE, SHORT, VAN DER PUY, MICHAEL, HSUEH, SUNG, TUNG
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to the preparation of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa), useful as an intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa). The invention further relates to a process for the preparation of HFC-245fa comprising reacting HCFC-235fa with hydrogen in the presence of a reduction catalyst wherein the said HCFC-235fa is prepared by reacting CCl 3 CHCCl 3 with hydrogen fluoride in the presence of fluorination catalyst in the vapor phase.