| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 570156000 | Catalyst utilized | 76 |
| 20100076231 | PROCESSES FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE, A PROCESS FOR PRODUCING 1-CHLORO-2,3,3,3-PENTAFLUOROPROPANE AND AZEOTROPIC COMPOSITIONS OF 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE WITH HF - A process is disclosed for making CH | 03-25-2010 |
| 20130035526 | PROCESS FOR THE MANUFACTURE OF TETRAFLUOROOLEFINS - A method for producing a tetrafluoroolefin, such as 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprises contacting 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) with or without a catalyst under conditions effective to convert the 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) to the tetrafluoroolefin, optionally, via an intermediate. The conversion may be a one-step fluorination or a two-step fluorination and dehydrochlorination process. The 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb) may also be obtained by dehydrochlorinating 1,2,3-trichloropropane (HCC-260da) to form 2,3-dichloropropene (HCO-1250xf); fluorinating 2,3-dichloropropene (HCO-1250xf) to form 1,2-dichloro-2-fluoropropane (HCFC-261bb); and chlorinating 1,2-dichloro-2-fluoropropane (HCFC-261bb) to form 1,1,1,2-tetrachloro-2-fluoropropane (HCFC-241bb). | 02-07-2013 |
| 20090099395 | Method for Producing 1,3,3,3-Tetrafluoropropene - There is provided a method for producing 1,3,3,3-tetrafluoropropene. This method includes dehydrofluorinating 1,1,1,3,3-pentafluoropropane in gas phase in the presence of a zirconium compound-carried catalyst in which a zirconium compound is carried on a metal oxide or activated carbon. | 04-16-2009 |
| 20130041190 | PROCESS FOR THE MANUFACTURE OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE (HFCO 1233xf) BY LIQUID PHASE FLUORINATION OF PENTACHLOROPROPANE - Process of catalytic fluorination in liquid phase of product 1,1,1,2,3-pentachloropropane or/and 1,1,2,2,3-pentachloropropane into product 2-chloro-3,3,3-trifluoropropene in presence of a catalyst. | 02-14-2013 |
| 20090156869 | PROCESSES FOR THE SYNTHESIS OF 2-CHLORO-1,1,1,3,3,4,4,4-HEPTAFLUORO-2-BUTENE AND HEXAFLUORO-2-BUTYNE - Disclosed is a process comprising reacting CF | 06-18-2009 |
| 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 |
| 20100130797 | Method for producing olefin - The present invention provides a method for producing an olefin represented by General Formula (II): RfCF═CH | 05-27-2010 |
| 20090118554 | Process for the preparation of 1,3,3,3-tetrafluoropropene and/or 2,3,3,3-tetrafluoropropene - A process for the manufacture of CF | 05-07-2009 |
| 20130060069 | DEHYDROFLUORINATION OF PENTAFLUOROALKANES TO FORM TETRAFLUOROOLEFINS - A method for producing a tetrafluoroolefin, such as 2,3,3,3-tetrafluoropropene (HFO-123434), comprises dehydrofluorinating a pentafluoroalkane in a gas phase in the presence of a catalyst comprising chromium oxyfluoride. In a preferred embodiment, 2,3,3,3-tetrafluoropropene (HFO-1234yf) is produced by forming a catalyst comprising chromium oxyfluoride by calcining CrF3?xH2O, where x is 1-10, in the presence of a flowing gas comprising nitrogen to form a calcined chromium oxyfluoride, and dehydrofluorinating 1,1,1,2,2-pentafluoropropane (HFC-245cb) in a gas phase in the presence of the catalyst to form the 2,3,3,3-tetrafluoropropene (HFO-1234yf). | 03-07-2013 |
| 20090270661 | PROCESS FOR DEHYDROFLUORINATION OF 3-CHLORO-1,1,1,3-TETRAFLUOROPROPANE TO 1-CHLORO-3,3,3-TRIFLUOROPROPENE - A process for making 1-chloro-3,3,3-trifluoropropene. The process has the following step: dehydrofluorinating 3-chloro-1,1,1,3-tetrafluoropropane under conditions sufficient to effect dehydrofluorination in the presence of a catalyst. Preferred catalysts are selected from the group consisting of (i) one or more halogenated trivalent or higher valent metal oxides, (ii) one or more trivalent or higher valent metal halides, and (iii) one or more natural or synthetic graphite materials. | 10-29-2009 |
| 20110288350 | PROCESS FOR THE PREPARATION OF FLUORINATED CIS-ALKENE - Disclosed is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkane with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents of the chlorofluoroalkane with hydrogen to produce a fluorine-containing olefin. Also disclosed are catalyst compositions for the hydrodechlorination of chlorofluoroalkanes comprising copper metal deposited on a support, and comprising palladium deposited on calcium fluoride, poisoned with lead and reducing the in the presence or absence of a dehydrochlorination catalyst under conditions effective to form a product stream comprising cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336). | 11-24-2011 |
| 20110288349 | PROCESS FOR THE PRODUCTION OF FLUORINATED ALKENES - The present invention provides a method for the preparation of suitable chlorofluorocarbon and hydrochlorofluorocarbon materials or chlorofluorocarbon and hydrochlorofluorocarbon alkene and alkyne intermediates which serve as useful feedstock for fluorination and reduction to cis-1,1,1,4,4,4-hexafluoro-2-butene. Also presented is a continuous process for the production of cis-1,1,1,4,4,4-hexafluoro-2-butene from the alkene and alkyne intermediates. | 11-24-2011 |
| 20110288348 | PROCESS FOR THE PREPARATION OF HEXAFLUORO-2-BUTYNE - Disclosed is a process for making hexafluoro-2-butyne comprising the steps of: (a) providing a composition comprising CF | 11-24-2011 |
| 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 |
| 20100268001 | PROCESS FOR THE PREPARATION OF HALO-OLEFINS - Described is a process for preparing a halo-olefin comprising contacting a halogenated hydrocarbon with a metal dehalogenating agent, in a solvent, in the presence of a phase transfer catalyst, under conditions sufficient to dehalogenate said halogenated hydrocarbon to produce a product stream comprising said halo-olefin. In one embodiment, the halogenated hydrocarbon is trifluorotrichloroethane and the halo-olefin is chlorotrifluoroethylene. | 10-21-2010 |
| 20080207963 | Preparation of composition containing chromium, oxygen, and either silver or palladium, and their use as catalysts and catalyst precursors - A method for preparing a catalyst composition suitable for increasing the fluorine content in a hydrocarbon or a halogenated hydrocarbon is disclosed. The method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble trivalent chromium salt and a soluble salt of a modifier metal selected from silver and palladium, that contains at least three moles of nitrate (i.e., NO | 08-28-2008 |
| 20120108859 | USE OF COPPER-NICKEL CATALYSTS FOR DEHLOGENATION OF CHLOROFLUOROCOMPOUNDS - The disclosure describes a process for dehalogenation of chlorofluorocompounds. The process comprises contacting a saturated chlorofluorocompound with hydrogen in the presence of a catalyst at a temperature sufficient to remove chlorine and/or fluorine substituents to produce a fluorine containing terminal olefin. | 05-03-2012 |
| 20090088593 | Method For Producing Fluorinated Organic Compounds - Disclosed is a method for producing fluorinated organic compounds, including petnafluoropropenes, which preferably comprises converting at least one compound of formula (I): | 04-02-2009 |
| 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 |
| 20090043138 | Process for the Preparation of 1,3,3,3-Tetrafluoropropene and/or 1,1,3,3,3-Pentafluoropropene - A process for the manufacture of CF | 02-12-2009 |
| 20090287026 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed is a process for producing tetrafluoropropene comprising: (a) catalytically fluorinating at least one tetrafluoropropene in a first reactor to produce HCFO-1233xf; (b) reacting said HCFO-1233xf with hydrogen fluoride in a second reactor to produce HCFC-244bb; (c) recycling at least a portion of said HCFC-244bb back to said first reactor as recycled HCFC-244bb; and (d) catalytically dehydrochlorinating said recycled HCFC-244bb in said first reactor to produce HFO-1234yf. | 11-19-2009 |
| 20110207974 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed is a process for producing tetrafluoropropene comprising: (a) catalytically fluorinating at least one tetrafluoropropene in a first reactor to produce HCFO-1233xf; (b) reacting said HCFO-1233xf with hydrogen fluoride in a second reactor to produce HCFC-244bb; (c) recycling at least a portion of said HCFC-244bb back to said first reactor as recycled HCFC-244bb; and (d) catalytically dehydrochlorinating said recycled HCFC-244bb in said first reactor to produce HFO-1234yf. | 08-25-2011 |
| 20080207962 | Compositions containing chromium, oxygen, and at least two modifier metals selected the group consisting of gold, silver, and palladium, their preparation, and their use as catalysts and catalyst precursors - A catalyst composition is disclosed that includes chromium, oxygen, and at least two of gold, silver, and palladium as essential constituent elements. The amount of modifier metals (gold, silver, and/or palladium) in the composition is from about 0.05 atom % to about 10 atom % based on the total amount of chromium and modifier metals. Also disclosed is a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of the catalyst composition; and methods for preparing said catalyst composition. One preparation method involves (a) co-precipitating a solid by adding ammonium hydroxide (aqueous ammonia) to an aqueous solution of soluble salts of modifier metals and a soluble chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a modifier metal content of from about 0.05 atom % to about 10 atom % of the total content of modifier metals and chromium in the solution to form an aqueous mixture containing co-precipitated solid; (b) drying the co-precipitated solid formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume. Another preparation method involves (a) impregnating solid chromium oxide with a solution of a soluble modifier metal salts; (b) drying the impregnated chromium oxide prepared in (a); and optionally; (c) calcining the dried solid. Yet another preparation method involves mixing multiple compositions, each comprising chromium, oxygen, and at least one modifier metal. | 08-28-2008 |
| 20090264690 | 1,2,3,3,3-Pentafluoropropene Production Processes - A process is disclosed for making CF | 10-22-2009 |
| 20100305370 | METHOD FOR PREPARING 2,3,3,3-TETRAFLUORO-1-PROPENE - The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene. | 12-02-2010 |
| 20110224465 | Catalyst Life Improvement for the Vapor Phase Manufacture of 1-Chloro-3,3,3-Trifluoropropene - This invention achieves a catalyst life improvement for the catalyzed vapor phase reaction of 1,1,1,3,3-pentachloropropane with hydrogen fluoride to form 1-chloro-3,3,3-trifluoropropene by introducing an oxygen co-feed into the fluorination reactor. By introduction of an oxygen co-feed to the reactor feed, the catalyst life was extended a minimum of two-fold (2×). | 09-15-2011 |
| 20090240089 | METHOD OF HYDRODECHLORINATION TO PRODUCE DIHYDROFLUORINATED OLEFINS - Disclosed herein is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkene with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents with hydrogen. Also disclosed is a catalyst composition for the hydrodechlorination of chlorofluoroalkenes comprising copper metal deposited on a support. | 09-24-2009 |
| 20100145111 | PROCESS FOR THE PREPARATION OF C3-7 FLUOROALKENES BY BASE-MEDIATED DEHYDROHALOGENATED C3-7 FLUOROALKENES - The invention relates to a process for preparing a compound of formula CF | 06-10-2010 |
| 20100145112 | Method for Producing 3,3,3-Trifluoropropyne - Disclosed is a method for producing 3,3,3-trifluoropropyne, which is characterized in that a base is reacted with (Z)-1-halogeno-3,3,3-trifluoropropene represented by formula [1]. It is possible by this production method to obtain 3,3,3-trifluoropropyne with high yield. Furthermore, since waste disposal is also easy, it is a production method that is industrially advantageous. | 06-10-2010 |
| 20090209791 | PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS - A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin. | 08-20-2009 |
| 20110172470 | Process for Producing Fluorinated Propene - There is provided according to the present invention a process for producing 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene, including: reacting 1,1,1,3,3-pentafluoropropane with hydrogen chloride in a gas phase in the presence of a solid catalyst. By the use of a specific solid catalyst such as a catalyst in which chromium is supported on alumina or activated carbon or an alumina catalyst, the 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene can be obtained with high yield from the 1,1,1,3,3-pentafluoropropane, which can be commercially available or prepared on an industrial scale. | 07-14-2011 |
| 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 |
| 20110245548 | CATALYST LIFE IMPROVEMENT IN THE VAPOR PHASE FLUORINATION OF CHLOROCARBONS - The present invention achieves a catalyst life improvement for the catalyzed vapor phase fluorination of a chlorocarbon in the presence of one catalyst and an oxygen feed. Specifically, in one non-limiting embodiment, the instant invention provides the conversion of 1,1,2,3-tetrachloropropene and/or 1,1,1,2,3-pentachloropropane to 2-chloro-3,3,3-trifluoropropene by introduction of a catalyst and oxygen co-feed to the fluorination reactor. | 10-06-2011 |
| 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 |
| 20110251442 | PROCESSES FOR PRODUCING 1,1-DICHLORO-2,3,3,3-TETRAFLUOROPROPENE AND 2,3,3,3-TETRAFLUOROPROPENE - To provide a simple and economical process for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene, which does not require purification of the raw material component obtained in the form of a mixture of isomers, and a process for producing 2,3,3,3-tetrafluoropropene from the product thereby obtained. | 10-13-2011 |
| 20110015453 | PROCESS FOR PRODUCING FLUOROPROPENES - Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF | 01-20-2011 |
| 20120302803 | PROCESS FOR PRODUCING 2-CHLORO-3,3,3-TRIFLUOROPROPENE - The present invention provides a process for producing 2-chloro-3,3,3-trifluoropropene represented by the chemical formula: CF | 11-29-2012 |
| 20120302802 | PROCESS FOR PRODUCING FLUORINE-CONTAINING ALKENE - The present invention provides a process for producing fluorine-containing alkene represented by Formula (2): Rf1C(Rf2)═CH2 wherein Rf1 and Rf2 are the same or different, and are F, H, F(CF2) | 11-29-2012 |
| 20120149951 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF | 06-14-2012 |
| 20100324345 | SYSTEMS AND PROCESSES FOR CFO-1113 FORMATION FROM HCFC-123a - Systems and processes relating to the formation and production of CFO-1113 HCFC-123 | 12-23-2010 |
| 20100022808 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - A process is disclosed for making CF | 01-28-2010 |
| 20110112339 | Dehydrochlorination Of Hydrochlorofluorocarbons Using Pre-Treated Activated Carbon Catalysts - The present disclosure provides methods for pre-treating activated carbon before it is used in a dehydrochlorination process. The methods can comprise mixing the activated carbon with an acid, an oxidizing agent in a liquid phase, or an oxidizing agent in a gas phase. Activated carbons undergoing one or more of these methods can exhibit improved stability during the dehydrochlorination process. | 05-12-2011 |
| 20120004475 | PROCESSES FOR PRODUCTION AND PURIFICATION OF HYDROFLUOROOLEFINS - Disclosed herein are processes for the production of hydrofluoroolefins including 2,3,3,4,4,4-hexafluoro-1-butene by dehydrofluorination. Also disclosed herein are processes for separation of hydrofluoroolefins from hydrofluorocarbons and from hydrogen fluoride. | 01-05-2012 |
| 20120059200 | Integrated Process to Coproduce Trans-1-Chloro-3,3,3-Trifluoropropene, Trans-1,3,3,3-Tetrafluoropropene, and 1,1,1,3,3-Pentafluoropropane - Disclosed is an integrated manufacturing process to co-produce (E)1-chloro-3,3,3-trifluoropropene, (E)1,3,3,3-tetrafluoropropene, and 1,1,1,3,3-pentafluoro-propane starting from a single chlorinated hydrocarbon feed stock, 240fa. The process includes a combined liquid or vapor phase reaction/purification operation which directly produces (E)1-chloro-3,3,3-trifluoropropene (1233zd(E)) from 240fa. In the second liquid phase fluorination reactor 1233zd(E) is contacted with HF in the presence of catalyst to produce 1,1,1,3,3-pentafluoropropane (245fa) with high conversion and selectivity. A third reactor is used for dehydrofluorination of 245fa to produce (E)1,3,3,3-tetrafluoropropene (1234ze(E)) by contacting in the liquid phase with a caustic solution or in the vapor phase using a dehydrofluorination catalyst. This operation may be followed by one or more purification processes to recover the 1234ze(E) product. | 03-08-2012 |
| 20120136183 | METHOD FOR PREPARING FLUORINE COMPOUNDS - The invention relates to a method for preparing fluoropropenes of formula (I) CF | 05-31-2012 |
| 20120136182 | 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. | 05-31-2012 |
| 20120215036 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HYDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 08-23-2012 |
| 20120215035 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HYDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 08-23-2012 |
| 20090018375 | COPRODUCTION OF HYDROFLUOROOLEFINS - Disclosed is a process for the co-manufacture of the hydrofluoroolefins HFC-1225ye and HFC-1234yf. The process comprises contacting a blend of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3-pentafluoropropane at a temperature of from about 200° C. to about 500° C. with a catalyst, optionally in the presence of an inert gas. The catalyst includes, but is not limited to, aluminum fluoride; fluorided alumina; metals on aluminum fluoride; metals on fluorided alumina; oxides, fluorides, and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc and/or aluminum; lanthanum oxide and fluorided lanthanum oxide; chromium oxides, fluorided chromium oxides, and cubic chromium trifluoride; carbon, acid-washed carbon, activated carbon, three dimensional matrix carbonaceous materials; and metal compounds supported on carbon. The metal compounds are oxides, fluorides, and oxyfluorides of at least one metal selected from the group consisting of sodium, potassium, rubidium, cesium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, chromium, iron, cobalt, rhodium, nickel, copper, zinc, and mixtures thereof. The product hydrofluoroolefins are separated from unreacted hydrofluorocarbons and hydrogen fluoride. In another embodiment, the unreacted hydrofluorocarbons optionally may be recirculated back through the process. | 01-15-2009 |
| 20110004035 | METHOD FOR PRODUCING 2-CHLORO-3,3,3,-TRIFLUOROPROPENE (HCFC-1233xf) - The present invention relates to an improved method for manufacturing | 01-06-2011 |
| 20110237845 | Catalytic Production Processes for Making Tetrafluoropropenes and Pentafluoropropenes - A process is disclosed for making CF | 09-29-2011 |
| 20120330073 | PROCESS FOR PRODUCING FLUORINE-CONTAINING ALKENE COMPOUND - The present invention provides a process for producing a fluorine-containing alkene of the general formula CF | 12-27-2012 |
| 20110319679 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The object is to provide a process whereby it is possible to produce 2,3,3,3-tetrafluoropropene at a high conversion ratio constantly for a long period of time. | 12-29-2011 |
| 20110319680 | PROCESS FOR PRODUCING 2, 3, 3, 3-TETRAFLUOROPROPENE - In the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf), formation of HFC-254eb as an excessively reduced product is suppressed. | 12-29-2011 |
| 20110319678 | PROCESS FOR PRODUCING 1,1-DICHLORO-2,3,3,3-TETRAFLUOROPROPENE AND 2,3,3,3-TETRAFLUOROPROPENE - To provide a process to produce 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya) simply and economically without requiring purification of 1,1-dichloro-2,2,3,3,3-pentafluoropropane (HCFC-225ca) from the raw material component obtained as a mixture of isomers, i.e. dichloropentafluoropropane (HCFC-225) including HCFC-225ca and at the same time to produce simply and economically 2,3,3,3-tetrafluoropropene (HFO-1234yf) from 1-chloro-2,3,3,3-tetrafluoropropane (HCFC-244eb). | 12-29-2011 |
| 20110160498 | PROCESS FOR THE PREPARATION OF TRIFLUORINATED AND TETRAFLUORINATED COMPOUNDS - 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. | 06-30-2011 |
| 20130102814 | PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES AND AZEOTROPIC COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUORO-1-PROPENE WITH HF AND OF 1,1,1,2,2-PENTAFLUOROPROPANE WITH HF - A process is disclosed for making CF | 04-25-2013 |
| 20130131402 | Process for the synthesis of trifluoroethylene - A catalytic process for the synthesis of trifluoroethylene from chlorotrifluoroethylene which comprises contacting chlorotrifluoroethylene with hydrogen in the presence of a catalyst consisting of palladium or platinum supported on extruded activated carbon. | 05-23-2013 |
| 570157000 | Alkali or alkaline earth metal containing catalyst | 13 |
| 20090306438 | 1,2,3,3,3-PENTAFLUOROPROPENE PRODUCTION PROCESSES - The present disclosure relates to a new and efficient manufacturing process for the production of HFC-1225ye. The process involves contacting at least one hexafluoropropane selected from the group consisting of 1,1,1,2,2,3-hexafluoropropane and 1,1,1,2,3,3-hexafluoropropane with a suitable catalyst in a reactor to obtain a product mixture containing HFC-1225ye (1,2,3,3,3-pentafluoropropene) where the pressure in the reactor ranges from about 0.5 psig to about 100 psig. | 12-10-2009 |
| 20120172639 | CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE - Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,3-pentafluoropropane with a catalyst comprised of chromium (III) oxide having a surface area of at least 150 m | 07-05-2012 |
| 20110282112 | CATALYSTS AND PROCESS TO MANUFACTURE 2,3,3,3-TETRAFLUOROPROPENE - Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,3-pentafluoropropane with a catalyst comprised of chromium (III) oxide and from 0.1% to 2% of an alkali metal disposed on the surface of said catalyst, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in (a). | 11-17-2011 |
| 20090299107 | PROCESS FOR DEHYDROCHLORINATING 1,1,1,2-TETRAFLUORO-2-CHLOROPROPANE TO 2,3,3,3-TETRAFLUOROPROPENE IN THE PRESENCE OF AN ALKALI METAL-DOPED MAGNESIUM OXYFLUORIDE CATALYST AND METHODS FOR MAKING THE CATALYST - A process for making a fluorinated olefin. The process has the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms in the presence of a catalytically effective amount of a catalyst composition. The catalyst composition is represented by the following: n wt. % MX/M′O | 12-03-2009 |
| 20090149680 | METHOD FOR MAKING CATALYST COMPOSITIONS OF ALKALI METAL HALIDE-DOPED BIVALENT METAL FLUORIDES AND PROCESS FOR MAKING FLUORINATED OLEFINS - There is provided methods for making a catalyst composition represented by the formula MX/M′F | 06-11-2009 |
| 20100185029 | TWO STEP PROCESS FOR THE MANUFACTURE OF HYDROFLUOROOLEFINS - The present invention discloses a process for the synthesis of hydrofluoroolefins (HFO). The process is based on the following two steps: the liquid phase fluorination of a hydrochloropropane(s) to hydrofluoropropane(s) (HFP) followed by the dehydrofluorination of the hydrofluoropropane(s) (HFP) to hydrofluoroolefins (HFO). | 07-22-2010 |
| 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 |
| 20090216053 | PROCESS FOR PRODUCING HEXAFLUORO-1,3-BUTADIENE - Disclosed is a process for producing hexafluoro-1,3-butadiene, which is used for an etching gas capable of being used in fine processing for semiconductors, safely in industrialization and at low cost economically. Specifically disclosed is a process for producing hexafluoro-1,3-butadiene comprises (1) a step comprising allowing a compound having four carbon atoms each which bonds to an atom selected from the group consisting of a bromine atom, an iodine atom and a chlorine atom, to react with a fluorine gas in the presence of a diluting gas in a gas phase, thereby preparing a mixture containing a product (A), and (2) a step comprising eliminating halogens excluding a fluorine atom with a metal from the product (A) prepared in the step (1) in the presence of a solvent, thereby preparing a mixture containing hexafluoro-1,3-butadiene. | 08-27-2009 |
| 20120059201 | METHODS TO PRODUCE 3,3,3-TRIFLUOROPROPENE - Disclosed is a process for the preparation of 3,3,3-trifluoropropene comprising the steps of; (1) fluorination of 240fa to form 245fa; (2) conversion of 245fa to a cis/trans mixture of 1234ze; (3) hydrogenation of the cis/trans mixture of 1234ze to form 254fb; and (4) dehydrofluorination of 254fb to produce 3,3,3-trifluoropropene. Alternatively or additionally, a second process for the preparation of the desired compound comprises the following steps; (1) fluorination of HCC-240fa to form HCFC-244fa; (2) conversion of 244fa to a cis/trans mixture of HFO-1234ze; (3) hydrogenation of the cis/trans mixture of 1234ze to form HFC-254fb; and (4) dehydrofluorination of 254fb to produce 3,3,3-trifluoropropene. | 03-08-2012 |
| 20120172638 | SYNTHESIS OF 1234YF BY SELECTIVE DEHYDROCHLORINATION OF 244BB - Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,tetrafluoro-2-chloropropane with a catalyst comprised of chromium (III) oxide, and at least 1% of an alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in step (a) above. | 07-05-2012 |
| 20120215038 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 08-23-2012 |
| 20120215037 | CATALYTICAL DEHYDROCHLORINATION OF HYDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 08-23-2012 |
| 20110282111 | Method For Making Catalyst Compositions Of Alkali Metal Halide-Doped Bivalent Metal Fluorides And A Process For Making Fluorinated Olefins - There is provided methods for making a catalyst composition represented by the formula MX/M′F | 11-17-2011 |
| 570158000 | Zinc containing catalyst | 5 |
| 20120271070 | INTEGRATED PROCESS TO CO-PRODUCE 1,1,1,3,3-PENTAFLUOROPROPANE, TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE and TRANS-1,3,3,3-TETRAFLUOROPROPENE - Disclosed is a fully integrated process for making 1,1,1,3,3-pentafluoropropane (HFC-245fa), trans-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)), and trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)). The chemistry involves (a) the reaction of 1,1,1,3,3-pentachloropropane (HCC-240fa), or a derivative thereof selected from 1,1,3,3-tetrachloropropene and 1,3,3,3-tetrachloropropene, with anhydrous HF in excess in the presence of a catalyst in a liquid-phase reactor in such a way as to co-produce HCFO-1233zd, HFO-1234ze, HCFC-244fa (3-chloro-1,1,1,3-tetrafluoropropane), and HFC-245fa in a first reactor; (b) the reaction of HCFO-1233zd and HFO-1234ze with HCl in excess in the presence of a catalyst in a second reactor to convert these two olefins into HCFC-243fa and HCFC-244fa, respectively; (c) the reaction of HCFC-243fa and HCFC-244fa over a dehydrochlorination catalyst or in a caustic solution in a third reactor to form HCFO-1233zd and HFO-1234ze; and (d) the reaction of HCFO-1233zd(Z) and HFO-1234ze(Z) in the presence of a catalyst in a fourth reactor to form trans-1233zd and trans-1234ze, respectively. | 10-25-2012 |
| 20120071699 | Process For Preparing 3,3,3-Trifluoropropene - The invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising contacting a compound of formula CX | 03-22-2012 |
| 20120302804 | Method for Producing 3,3,3-Trifluoro Propene - A production method of 3,3,3-trifluoropropene includes the step of hydrogenating 1-chloro-3,3,3-trifluoropropene with hydrogen (H | 11-29-2012 |
| 20080300432 | Chemical Production Processes and Systems - Chemical production processes are provided that include reacting a metal comprising olefin to form a conjugated olefin; reacting a heterohalogenated olefin to form a conjugated olefin; reacting a halogenated alkane to form a conjugated olefin; and/or reacting a hydrohalogenated olefin to form a conjugated olefin. Chemical production systems are also provided that can include: a first reactant reservoir configured to house a perhalogenated olefin; a second reactant reservoir configured to house a catalyst mixture; a first reactor coupled to both the first and second reservoirs, the first reactor configured to house a metal-comprising mixture and receive both the perhalogenated olefin form the first reactant reservoir and the reactant mixture from the second reactant reservoir; and a product collection reservoir coupled to the first reactor and configured to house a conjugated olefin. | 12-04-2008 |
| 20110160499 | Catalytic Gas Phase Fluorination of 243db to 1234yf - The invention provides a process for preparing 1234yf, comprising:
| 06-30-2011 |
