摘要:
The subject of the invention is a process for the preparation of 2,3-dichloro-1,1,1-trifluoropropane by chlorination of 3,3,3-trifluoropropene at a pressure greater than 2 bar. Application in the synthesis of 1234yf.
摘要:
The subject of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises the following stages: (i) dehydrofluorination of 1,1,1,2,2,3-hexafluoropropane to 1,2,3,3,3-pentafluoro-1-propene; (ii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to 1,1,1,2,3-pentafluoropropane; and (iii) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to 2,3,3,3-tetrafluoro-1-propene.
摘要:
The invention relates to a method for the dehydrofluorination of 1,1,1,2,3,3 -hexafluoropropane into 1,2,3,3,3 -pentafluoropropene-1, in the presence of hydrogen.
摘要:
The invention relates to a method for selective dehydrofluorination on a mixed catalyst based on chromium and nickel on a carrier based on aluminium. The invention is used for the synthesis of 2, 3, 3, 3-tetrafluoro-1-propene and 1,2,3,3,3- pentafluoro-1-propene.
摘要:
La présente invention concerne un procédé de fabrication du 1,2,3,3,3-pentafluoropropane en faisant réagir en phase gazeuse du 1,2,3,3,3-pentafluoropropène avec de l'hydrogène en quantité surstoechiométrique en présence d'un catalyseur d'hydrogénation dans un réacteur ; en recyclant une partie de l'effluent gazeux issu du réacteur.
摘要:
The present invention relates to a method for producing 1,2,3,3,3-pentafluoropropane, involving reacting gaseous phase 1,2,3,3,3-pentafluoropropene with hydrogen in a superstoichiometric amount in the presence of a hydrogenation catalyst in a reactor, and recirculating a part of the gaseous effluent from the reactor.