| Patent application number | Description | Published |
|---|
| 20090030244 | METHOD FOR PRODUCING 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFC-1233xf) - The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential. | 01-29-2009 |
| 20090030247 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF | 01-29-2009 |
| 20090030249 | PROCESSES FOR PREPARING 1,1,2,3-TETRACHLOROPROPENE - Provided is a continuous process for preparing 1,1,2,3-tetrachloro-1-propene having the steps of catalytically dehydrochlorinating CH | 01-29-2009 |
| 20090240090 | INTEGRATED PROCESS TO PRODUCE 2,3,3,3-TETRAFLUOROPROPENE - A method for preparing 2,3,3,3-tetrafluoroprop-1-ene comprising (a) providing a starting composition comprising at least one compound having a structure selected from Formulae I, II and III: | 09-24-2009 |
| 20090242832 | AZEOTROPE-LIKE COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFC-1233xf) AND 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb) - Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 10-01-2009 |
| 20090256110 | AZEOTROPIC COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HCFC-1233xf), 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb), AND HYDROGEN FLUORIDE (HF) - Provided are ternary azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 10-15-2009 |
| 20090287027 | PROCESS FOR SEPARATING HYDROGEN FLUORIDE FROM ORGANIC FEEDSTOCKS - Provided is a process for purifying an organic feedstock comprising (a) distilling a raw organic feedstock comprising hydrogen fluoride, 2-chloro-1,1,1,2-tetrafluoropropane, and 2-chloro-3,3,3-trifluoropropene to produce a first distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a first bottoms stream rich in hydrogen fluoride; (b) cooling said first distillate stream to produce an intermediate composition comprising an organic layer rich in 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, and an acid layer rich in hydrogen fluoride; and, optionally but preferably, (c) distilling said organic layer to produce a second distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a second bottoms stream comprising a purified organic feedstock substantially free of hydrogen fluoride. | 11-19-2009 |
| 20090312585 | PROCESSES FOR HYDROFLUORINATION OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE TO 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE - A process for making 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of contacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a catalyst having about 25 to about 99.9 mole percent antimony pentachloride and about 0.1 to about 75 mole percent of a metal of a Lewis acid under conditions sufficient to form the 2-chloro-1,1,1,2-tetrafluoropropane. There is a second process for making 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of hydrofluorinating about 75 to about 99.9 mole percent 2-chloro-3,3,3-trifluoropropene and about 0.1 to about 25 mole percent of one or more other hydrocarbons having at least one chlorine atom in the presence of a catalyst of fluorinated antimony pentachloride under conditions sufficient to form the 2-chloro-1,1,1,2-tetrafluoropropane. There is yet another process for hydrofluorinating 2-chloro-3,3,3-trifluoropropene to 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of contacting the 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a vapor phase catalyst under conditions sufficient to form the 2-chloro-1,1,1,2-tetrafluoropropane. | 12-17-2009 |
| 20100036179 | PROCESS TO MANUFACTURE 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb) - The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244 | 02-11-2010 |
| 20100048961 | METHOD FOR SEPARATING HALOCARBONS - The invention provides a method for separating halocarbons. In particular, a method for separating 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) based on differences in melting points of these compounds. More particularly the invention pertains to a method for separating HCFC-244bb from HCFO-1233xf which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 02-25-2010 |
| 20100113322 | Azeotrope-Like Compositions Of 1,1,2,3-Tetrachloropropene And Hydrogen Fluoride - An azeotrope-like composition consisting essentially of 1,1,2,3-tetrachloropropene and hydrogen fluoride is provided, as well as methods that involve such an azeotrope-like composition. | 05-06-2010 |
| 20100113323 | Azeotrope-Like Compositions Of 1,1,1,2,3-Pentachloropropane And Hydrogen Fluoride - An azeotrope-like composition consisting essentially of 1,1,1,2,3-pentachloropropane and hydrogen fluoride is provided, as well as methods that involve such an azeotrope-like composition. | 05-06-2010 |
| 20100119460 | Azeotrope-Like Compositions Of 2,3,3,3-Tetrafluoropropene And 3,3,3-Trifluoropropene - Provided are azeotropic or azeotrope-like mixtures of 2,3,3,3-tetrafluoropropene (1234yf) and 3,3,3-trifluoropropene (1243zf), as well as methods for producing and using the same. | 05-13-2010 |
| 20100137658 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Provided is a process for making 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of hydrofluorinating 2-chloro-3,3,3-trifluoropropene in the presence of a catalyst selected from the group consisting of SbCl | 06-03-2010 |
| 20100210883 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed are methods for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): | 08-19-2010 |
| 20100233057 | METHODS AND REACTOR DESIGNS FOR PRODUCING PHOSPHORUS PENTAFLUORIDE - Processes and systems for the production of phosphorus pentafluoride (PF | 09-16-2010 |
| 20110028770 | HYDROGENATION CATALYST - An alpha-alumina support for a hydrogenation catalyst useful in hydrogenating fluoroolefins is provided. | 02-03-2011 |
