PROCESS FOR THE PREPARATION OF 2,3,3,3-TRIFLUOROPROPENE

The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf), the process 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...

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Bibliographic Details
Main Authors Sharratt, , Andrew Paul, Taylor, , Andrew Mark, McGuiness, , Claire, Smith, , John William
Format Patent
LanguageEnglish
French
German
Published 06.12.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf), the process 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; wherein the product from step (a), (b), (c) and/or (d) is subjected to a purification step.
Bibliography:Application Number: EP20170201171