FREMGANGSMÅDE TIL FREMSTILLING AF 2-CHLOR-1,1,1,2-TETRAFLUORPROPAN (HCFC-244BB)

FREMGANGSMÅDE TIL FREMSTILLING AF 2-CHLOR-1,1,1,2-TETRAFLUORPROPAN (HCFC-244BB)

The invention relates to a process to produce HCFC-244bb from HCFO-1233xf wherein, in one embodiment, one or more co-feed species having a normal boiling point of between about -80°C to about 0°C, such as HFC-245cb, is added to the reaction at a pressure of at least about 100 psig; and in another em...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOPKALLI, Haluk, MERKEL, Daniel C, ROOF, Ron Joseph
Format: Patent
Sprache:dan
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to a process to produce HCFC-244bb from HCFO-1233xf wherein, in one embodiment, one or more co-feed species having a normal boiling point of between about -80°C to about 0°C, such as HFC-245cb, is added to the reaction at a pressure of at least about 100 psig; and in another embodiment it is added to maintain a mole ratio of HFC-245cb to HCFO- 1233xf of between about 0.005:1 to about 1:1. The HFC-245cb may be added as recycled by-product of the reaction and/or added as fresh feed. The HFC-245cb provides elevated pressures to the reaction thereby facilitating reactor operation, mixing and HCFC-244bb product removal. Other co-feed species are also disclosed.