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 |
20110201853 | Integrated Process And Methods Of Producing (E)-1-Chloro-3,3,3-Trifluoropropene - The present invention relates to methods, process, and integrated systems for economically producing (E)-1-chloro-3,3,3-trifluoropropene via vapor phase and/or liquid processes. | 08-18-2011 |
20110207975 | 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: | 08-25-2011 |
20110210289 | 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). | 09-01-2011 |
20110245549 | Integrated Process to Co-Produce Trans-1-Chloro-3,3,3-Trifluoropropene and Trans-1,3,3,3-Tetrafluoropropene - The disclosed integrated manufacturing process includes a combined liquid phase reaction and purification operation which directly produces trans-1-chloro-3,3,3-trifluoropropene and 3-chloro-1,1,1,3-tetrafluoropropane which is a precursor to the manufacture of trans-1,3,3,3-tetrafluoropropene. The mixture of co-products is easily separated by conventional distillation and 3-chloro-1,1,1,3-tetrafluoropropane is then dehydrochlorinated to produce trans-1,3,3,3-tetrafluoropropene by contacting in the liquid phase with a caustic solution or in the vapor phase using a dehydrochlorination catalyst. | 10-06-2011 |
20110287996 | 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. | 11-24-2011 |
20120178977 | Low Temperature Production of 2-Chloro-3,3,3-Trifluoropropene - Disclosed is a method for the production of 1233xf comprising the continuous low temperature liquid phase reaction of 1,1,1,2,3-pentachloropropane and anhydrous HF, without the use of a catalyst, wherein the reaction takes place in one or more reaction vessels, each one in succession converting a portion of the original reactants fed to the lead reaction vessel and wherein the reactions are run in a continuous fashion. | 07-12-2012 |
20120184786 | Integrated Process to Co-Produce Trans-1-Chloro-3,3,3-Trifluoropropene, Trans-1,3,3,3-Tetrafluoropropene, and 1,1,1,3,3-Pentafluoropropane - Disclosed is an integrated process to co-produce trans-1-chloro-3,3,3-trifluoro-propene (1233zd(E)), trans-1,3,3,3-tetrafluoropropene (1234ze(E)), and 1,1,1,3,3-pentafluoropropane (245fa). Overall the co-production is a three-step process. The chemistry involves the steps of:
| 07-19-2012 |
20120215039 | Azeotrope And Azeotrope-Like Compositions Useful For The Production Of Haloolefins - The present invention pertains to ternary azeotrope and azeotrope-like composition including 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), HF, and either 1,1,2,3-tetrachloropropene (TCP) or 1,1,1,2,2-pentafluoropropane (HFC-245cb). The present invention also relates to binary azeotropes of 2,3,3,3-tetrachloropropene and HF. Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 08-23-2012 |
20130085308 | METHODS TO SEPARATE HALOGENTATED OLEFINS FROM 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE USING A SOLID ADSORBENT - The present invention provides a method for separating halocarbons. In particular, the invention provides a method for separating halogenated olefin impurities from 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) using a solid adsorbent, particularly activated carbon. More particularly the invention pertains to a method for separating 2-chloro-3,3,3-trifluoro-propene (HCFO-1233xf) from HCFC-244bb, which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 04-04-2013 |
20130211154 | PROCESS FOR THE PRODUCTION OF HCFC-1233zd - A process for the manufacture of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) at commercial scale from the reaction of HCC-240 and HF is disclosed. In one embodiment, HCC-240fa and HF are fed to a reactor operating at high pressure. Several different reactor designs useful in this process include; a stirred-tank reactor (batch and/or continuous flow); a plug flow reactor; a static mixer used as a reactor; at least one of the above reactors operating at high pressure; optionally combined with a distillation column running at a lower pressure; and combinations of the above; and/or with a distillation column. The resulting product stream consisting of 1233zd, HCl, HF, and other byproducts is partially condensed to recover HF by phase separation. The recovered HF phase is recycled to the reactor. The HCl is scrubbed from the vapor stream and recovered as an aqueous solution. The remaining organic components including the desired HCFC-1233zd are scrubbed, dried and distilled to meet commercial product specifications. | 08-15-2013 |
20130221272 | AZEOTROPIC COMPOSITIONS OF 1,1,1,3,3-PENTACHLOROPROPANE AND HYDROGEN FLUORIDE - Provided are azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd. | 08-29-2013 |
20130221273 | AZEOTROPIC COMPOSITIONS OF 1,1,3,3-TETRACHLORO-1-FLUOROPROPANE AND HYDROGEN FLUORIDE - Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd. | 08-29-2013 |
20140147343 | Low Temperature Production of 2-Chloro-3,3,3-Trifluoropropene - Disclosed is a method for the production of 1233xf comprising the continuous low temperature liquid phase reaction of 1,1,1,2,3-pentachloropropane and anhydrous HF, without the use of a catalyst, wherein the reaction takes place in one or more reaction vessels, each one in succession converting a portion of the original reactants fed to the lead reaction vessel and wherein the reactions are run in a continuous fashion. | 05-29-2014 |
20140186230 | CONTINUOUS LOW-TEMPERATURE PROCESS TO PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE - Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield. | 07-03-2014 |
20140206910 | CONTINUOUS LOW-TEMPERATURE PROCESS TO PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE - Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system including one or more reactors for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield. | 07-24-2014 |
20140221704 | PROCESS FOR THE PREPARATION OF 1-CHLORO-3,3,3-TRIFLUOROPROPENE USING A PHASE TRANSFER CATALYST - Disclosed is a process in which the fluorination of an organic reactant comprising 1,1,1,3,3-pentachloropropane (240fa) with anhydrous HF is conducted in the presence of an effective amount of a phase-transfer catalyst which facilitates the reaction between these incompatible reaction components to produce 1-chloro-3,3,3-trifluoro-propene (1233zd). Other organic reactant materials include 1,1,3,3-tetrachloropropene (HCO-1230za), 1,3,3,3-tetrachloropropene (HCO-1230zd), and various mixtures with or without 240fa. | 08-07-2014 |
20140256996 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefm starting reagents, oligomerization/polymerization of such reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that vaporizing such starting reagents in the presence of one or more organic co-feed reduces such oligomerization/polymerization and improves catalytic stability. | 09-11-2014 |
20140264154 | AZEOTROPIC COMPOSITIONS OF 1,3,3-TRICHLORO-1,1-DIFLUOROPROPANE AND HYDROGEN FLUORIDE - Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoropropane (HCFO-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of HFC245fa and HCFO1233zd. | 09-18-2014 |
20140264173 | AZEOTROPIC COMPOSITIONS OF 1,1,3,3-TETRACHLOROPROP-1-ENE AND HYDROGEN FLUORIDE - Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of HFC-245fa and HCFO-1233zd. | 09-18-2014 |
20140264174 | AZEOTROPIC COMPOSITIONS OF 1,3,3,3-TETRACHLOROPROP-1-ENE AND HYDROGEN FLUORIDE - Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (HCO-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of HFC245fa and HCFO1233zd. | 09-18-2014 |
20140275644 | METHOD TO PRODUCE CIS-1-CHLORO-3,3,3-TRIFLUOROPROPENE - The present invention discloses methods to produce cis-1-chloro-3,3,3-trifluoropropene in high yield by the isomerization of trans-1-chloro-3,3,3-trifluoropropene. These isomers are also known as 1233zd(Z) and 1233zd(E), respectively. This is done by using reactive distillation whereby as cis-1-chloro-3,3,3-trifluoropropene is produced, it is removed from the reaction zone. This product removal causes a shift in the thermodynamic equilibrium of the reaction system, forcing the production of additional cis isomer. | 09-18-2014 |
20140275645 | PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS - In certain aspects, the present invention relates to methods for increasing the cost efficiency and safety of the hydrogenation of a fluorinated olefin by controlling the reaction conditions and parameters. In further aspects, the hydrogenation reaction is provided in a two stage reaction wherein the reactant amounts, temperature and other parameters are controlled such that the conversion percentage, selectivity, and reaction parameters are all within commercially acceptable levels. | 09-18-2014 |
20140275662 | PROCESS TO SUPPRESS THE FORMATION OF 3,3,3-TRIFLUOROPROPYNE IN FLUOROCARBON MANUFACTURE - This invention relates to a process for the suppression of 3,3,3-trifluoropropyne during the manufacture of fluorocarbons, fluoroolefins, hydrochlorofluoroolefins. More particularly, this invention is directed to a process to suppress the formation of 3,3,3-trifluoropropyne during processes for the manufacture of HCFO-1233zd(E), HCFO-1233zd(Z), HFO-1234ze(E), and/or HFO-1234ze(Z). | 09-18-2014 |
20140303413 | METHODS TO SEPARATE HALOGENTATED OLEFINS FROM 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE USING A SOLID ADSORBENT - The present invention provides a method for separating halocarbons. In particular, the invention provides a method for separating halogenated olefin impurities from 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) using a solid adsorbent, particularly activated carbon. More particularly the invention pertains to a method for separating 2-chloro-3,3,3-trifluoro-propene (HCFO-1233xf) from HCFC-244bb, which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 10-09-2014 |
20140309462 | CATALYTIC FLUORINATION PROCESS OF MAKING HYDROHALOALKANE - The present disclosure provides a fluorination process which involves reacting a hydrohaloalkene of the formula R | 10-16-2014 |
20140309463 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting re-agents, particularly, 1,1,2,3-tetrachloropropene (1230xa), oligomerization/polymerization of such starting reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that providing one or more organic co-feed to the fluooelefin starting stream reduces such oligomerization/polymerization and improves catalystic stability. | 10-16-2014 |
20140316170 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The present invention relates, in part, to the discovery that the presence of impurities in 1,1,2,3-tetrachloropropene (1230xa) results in catalyst instability during the fluorination of 1230xa to 2-chloro-3,3,3-trifluoropropene. By substantially removing the impurities, it is shown that the catalyst life is extended and results in improved operation efficiency of the fluorination reaction. Such steps similarly result in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf). | 10-23-2014 |
20140350309 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The present invention relates, in part, to the discovery that the presence of impurities in a reactor for dehydrochlorinating HCFC-244bb to HFO-1234yf results in a reduced conversion rate and/or a selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing such impurities, it is shown that the conversion rate may be improved and selectivity to HFO-C 1234yf via dehydrochlorination of HCFC-244bb is also improved. | 11-27-2014 |