1234ze preparation
First Claim
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1. A process for the preparation of cis/trans 1,1,1,3-tetrafluoro-2 -propene which comprises (a) contacting 1,1,1,3,3-pentafluoropropane with an oxygen-containing gas in the presence of a fluorided catalyst selected from Cr2 O3 or Cr/Ni/AlF3, and (b) recovering cis/trans 1,1,1,3-tetrafluoro-2-propene from the resulting reaction mixture.
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Abstract
Preparation of cis/trans 1234ze monomer is provided, by dehydrofluorination of 245fa using an alkaline solution or using a gas phase catalyzed process.
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Citations
3 Claims
- 1. A process for the preparation of cis/trans 1,1,1,3-tetrafluoro-2 -propene which comprises (a) contacting 1,1,1,3,3-pentafluoropropane with an oxygen-containing gas in the presence of a fluorided catalyst selected from Cr2 O3 or Cr/Ni/AlF3, and (b) recovering cis/trans 1,1,1,3-tetrafluoro-2-propene from the resulting reaction mixture.
Specification