Patent application number | Description | Published |
20090143604 | Synthesis of hydrofluoroalkanols and hydrofluoroalkenes - Described herein is a process for the manufacture of hydrofluoroalkanols of the structure R | 06-04-2009 |
20090299108 | CATALYTIC ADDITION OF HYDROFLUOROCARBONS TO FLUOROOLEFINS - A process is disclosed for making RR | 12-03-2009 |
20100090156 | COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE, 2-CHLORO-2,3,3,3-TETRAFLUOROPROPANOL, 2-CHLORO-2,3,3,3-TETRAFLUORO-PROPYL ACETATE OR ZINC (2-CHLORO-2,3,3,3-TETRAFLUOROPROPOXY) CHLORIDE - Compositions comprising CF | 04-15-2010 |
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 |
20100305371 | PRODUCTION PROCESSES FOR MAKING 1,1,1,2,2,3-HEXAFLUOROPROPANE - A process for making HFC-236cb is disclosed. The process comprises reacting TFE with HFC-32 in the presence of at least one co-product and a suitable catalyst to produce a product mixture comprising HFC-236cb, wherein the total amount of the at least one co-product is at least 10 ppmv based on the total amount of the tetrafluoroethylene, the difluoromethane and the at least one co-product. | 12-02-2010 |
20110028769 | PROCESS FOR MAKING 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE - A process is disclosed for making 1,1,1,4,4,4-hexafluoro-2-butene. The process involves reacting 2,2-dichloro-1,1,1-trifluoroethane with copper in the presence of an amide solvent and 2,2′-bipyridine. A process is also disclosed for making 1,1,1,4,4,4-hexafluoro-2-butene. The process involves reacting 2,2-dichloro-1,1,1-trifluoroethane with copper in the presence of an amide solvent and a Cu(I) salt. A process is further disclosed for making 1,1,1,4,4,4-hexafluoro-2-butene. The process involves reacting 2,2-dichloro-1,1,1-trifluoroethane with copper in the presence of an amide solvent, 2,2′-bipyridine and a Cu(I) salt. | 02-03-2011 |
20120083619 | Synthesis of Hydrofluoroalkanols and Hydrofluoroalkenes - Described herein is a process for the manufacture of hydrofluoroalkanols of the structure R | 04-05-2012 |
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 |
20120168672 | COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE, 2-CHLORO-2,3,3,3-TETRAFLUOROPROPANOL, 2-CHLORO-2,3,3,3-TETRAFLUORO-PROPYL ACETATE OR ZINC (2-CHLORO-2,3,3,3-TETRAFLUOROPROPOXY) CHLORIDE - Compositions comprising CF | 07-05-2012 |
20120215036 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HYDROCHLOROFLUOROCARBONS - 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 |
20120215038 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 08-23-2012 |
20130098396 | NOVEL 1,1,1,4,4,5,5,6,6,6-DECAFLUOROHEX-2-ENE ISOMER MIXTURES AND USES THEREOF - Disclosed are compositions comprising unsaturated hydrofluorocarbons, an alkene with the formula of 1,1,1,4,4,5,5,6,6,6-decafluorohex-2-ene and its isomers (the “153-10 isomers”). The invention further relates to use of said compositions in methods to clean, degrease, deflux, dewater, deposit fluorolubricant, carrier fluid applications and heat transfer applications. The invention further relates to novel 153-10 isomer mixtures, their method of making and their use as cleaning compositions and in the methods listed above. | 04-25-2013 |
20140012048 | SELECTIVE CATALYTICAL DEHYDROCHLORINATION OF HYDROCHLOROFLUOROCARBONS - A dehydrochlorination process is disclosed. The process involves contacting R | 01-09-2014 |
20140018582 | PROCESS FOR THE REDUCTION OF RfCCX IMPURITIES IN FLUOROOLEFINS - The present disclosure relates to processes for reducing the concentration of R | 01-16-2014 |
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 |
20140364657 | PROCESS FOR REACTOR PASSIVATION - Disclosed is a process for passivating a surface of a dehydrochlorination reactor comprising: stopping a flow of hydrochlorofluoropropane to a reactor, passing a gas mixture comprising hydrogen gas through the reactor at a temperature of at least 25° C. for a period of time sufficient to restore the selectivity of a dehydrochlorination reaction, stopping the flow of the hydrogen gas mixture, and resuming the flow of hydrochlorofluoropropane to the dehydrochlorination reaction. Also disclosed is a process for producing a fluoropropene of formula CF | 12-11-2014 |