Patent application number | Description | Published |
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 |
20090099396 | PROCESS FOR SYNTHESIS OF FLUORINATED OLEFINS - Disclosed is a process for the synthesis of fluorinated olefins, and in particularly preferred embodiments tetrafluorinated olefins having F on an unsaturated, non-terminal carbon, such as 2,3,3,3-tetrafluoropropene. The preferred processes of the present invention in accordance with one embodiment generally comprise:
| 04-16-2009 |
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 |
20090318323 | SOLVENT COMPOSITIONS CONTAINING CHLOROFLOROOLEFINS OR FLUOROOLEFINS - Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in solvent cleaning applications. | 12-24-2009 |
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 |
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 |
20100331583 | METHOD FOR PROLONGING A CATALYST'S LIFE DURING HYDROFLUORINATION - The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in the presence of a fluorination catalyst, where by using 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) of high purity, the need to add an oxidizing agent (typically chlorine) to keep the catalyst active can be avoided. The HCFC-244bb is then used as an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf). | 12-30-2010 |
20110269861 | SOLVENT COMPOSITIONS CONTAINING CHLOROFLUOROOLEFINS OR FLUOROOLEFINS - Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in foaming and blowing agent applications, articles and methods. | 11-03-2011 |
20110270000 | METHOD FOR PRODUCING TETRAFLUOROPROPENES - The current invention relates to a process for making a tetrafluoropropene using a tetrafluorochloropropane and/or a pentafluoropropane as starting or intermediate reagents. More specifically, though not exclusively, the present invention relates to a novel method for preparing a tetrafluoropropene by dehydrohalogenating a starting or intermediate tetrafluorochloropropane and/or pentafluoropropane material in the presence of a caustic solution at a temperature range greater than 40° C. and less than or equal to 80° C. | 11-03-2011 |
20130228714 | COMPOSITIONS CONTAINING CHLOROFLUOROOLEFINS OR FLUOROOLEFINS - Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in foaming and blowing agent applications, articles and methods. | 09-05-2013 |
20130253235 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF | 09-26-2013 |
20140012047 | 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-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst. The hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more. The HCFC-244bb is an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf). | 01-09-2014 |
20140100393 | METHOD FOR PROLONGING A CATALYST'S LIFE DURING HYDROFLUORINATION - The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in the presence of a fluorination catalyst, where by using 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) of high purity, the need to add an oxidizing agent (typically chlorine) to keep the catalyst active can be avoided. The HCFC-244bb is then used as an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf). | 04-10-2014 |
20140284510 | COMPOSITIONS CONTAINING CHLORFLUOROOLEFINS OR FLUOROOLEFINS - Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354 having properties highly beneficial in foaming and blowing agent applications, articles and methods. | 09-25-2014 |
20140350311 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF | 11-27-2014 |