| Patent application number | Description | Published |
|---|
| 20090209792 | Chromia Based Fluorination Catalyst - A chromia-based fluorination catalyst comprising at least one additional metal selected from zinc, nickel, aluminium and magnesium in which from 0.1 to 8.0% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crystalline compounds of the at least one additional metal. The catalyst can be used in processes for producing a fmorinated hydrocarbon. | 08-20-2009 |
| 20110112338 | Process for the Preparation of 2,3,33-Trifluoropropene - The invention provides a process for the preparation of 1234yf 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). | 05-12-2011 |
| 20110112340 | PROCESS - The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF | 05-12-2011 |
| 20110118513 | PROCESS - The invention provides a process for preparing 1,1,1-trifluoro-2,3-dichloropropane (243db), which process comprises contacting 3,3,3-trifluoropropene (1243zf) with chlorine in the presence of a catalyst, wherein the catalyst comprises activated carbon, alumina and/or an oxide of a transition metal. | 05-19-2011 |
| 20110124930 | PROCESS - The present invention provides a process for its preparation comprising (a) converting 1,1,1-trifluoro-2,3-dichloropropane (243db) to 3,3,3-trifluoro-2-chloro-prop-1-ene (CF | 05-26-2011 |
| 20110152586 | PROCESS FOR THE HYDROGENATION OF PENTAFLUOROPROPENE - A method of providing a blend of tetra- and/or pentafluoroalkanes comprising hydrogenating a pentafluoropropene. | 06-23-2011 |
| 20110224466 | CATALYST AND PROCESS USING THE CATALYST - A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity and from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of the chromium is present as chromium (VI). The use of the zinc-promoted, chromium-containing catalyst in a fluorination process in which a hydrocarbon or halogenated hydrocarbon is reacted with hydrogen fluoride in the vapour-phase at elevated temperatures is also described. | 09-15-2011 |
