Entries |
Document | Title | Date |
20080242901 | METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS - A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms. | 10-02-2008 |
20090012335 | 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. | 01-08-2009 |
20090036719 | Conversion of fluorocarbons - A process is disclosed for the conversion of fluorocarbons into fluorinated unsaturated compounds useful as monomers or other chemical precursors, such as C | 02-05-2009 |
20100121117 | PROCESS FOR PREPARING DECAFLUOROCYCLOHEXENE - Disclosed herein is a process of preparing decafluorocyclohexene using hexafluorobenzene as a raw material. The hexafluorobenzene reacts with an activated fluorinating agent at 60-200° C. in an inert gas atmosphere. The activated fluorinating agent is prepared by mixing 1-50 wt % of cobalt difluoride with 50-99 wt % of other metal fluoride selected from calcium fluoride, magnesium fluoride, aluminum fluoride, sodium fluoride and potassium fluoride. The mixture reacts with fluorine gas at 200-400° C. | 05-13-2010 |
20100145110 | Conversion of fluorocarbons - A process is disclosed for the conversion of fluorocarbons into fluorinated unsaturated compounds useful as monomers or other chemical precursors, such as C | 06-10-2010 |
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 |
20110060170 | METHOD FOR PRODUCING HYDROGEN-CONTAINING FLUOROOLEFIN COMPOUND - An unsaturated hydrogen-containing fluoroolefin compound is obtained by bringing an unsaturated fluorine-containing halogen compound into contact with 0.1 to 3 molar equivalents of hydrogen relative to the unsaturated fluorine-containing halogen compound in a vapor phase in the presence of a supported palladium catalyst in which an amount of supported palladium is 0.1% by weight to 2.5% by weight. | 03-10-2011 |
20110112338 | Process for the Preparation of 2,3,33-Trifluoropropene - The invention provides a process for the preparation of 1234yf comprising (a) contacting 1,1,2,3,3,3-hexafluoropropene (1216) with hydrogen in the presence of a hydrogenation catalyst to produce 1,1,2,3,3,3-hexafluoropropane (236ea); (b) dehydrofluorinating 236ea to produce 1,2,3,3,3-pentafluoropropene (1225ye); (c) contacting 1225ye with hydrogen in the presence of a hydrogenation catalyst to produce 1,2,3,3,3-pentafluoropropane (245eb); and (d) dehydrofluorinating (245eb) to produce (1234yf). | 05-12-2011 |
20110118513 | PROCESS - The invention provides a process for preparing 1,1,1-trifluoro-2,3-dichloropropane (243db), which process comprises contacting 3,3,3-trifluoropropene (1243zf) with chlorine in the presence of a catalyst, wherein the catalyst comprises activated carbon, alumina and/or an oxide of a transition metal. | 05-19-2011 |
20110124929 | PROCESS FOR PREPARING FLUORINE-CONTAINING PROPENE BY GAS-PHASE FLUORINATION - The present invention provides a process for preparing a fluorine-containing propene represented by the chemical formula CF | 05-26-2011 |
20110160497 | Catalytic Gas Phase Fluorination of 1233xf to 1234yf - The present invention provides a process for preparing 1234yf, comprising:
| 06-30-2011 |
20110319674 | PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS - Provided are methods for producing fluorinated organic compounds, which preferably comprises converting at least one compound of formula (I) CH | 12-29-2011 |
20110319676 | 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 |
20110319677 | Process for Producing 2, 3, 3, 3-Tetrafluoropropene - The object is to provide a process for producing highly pure 2,3,3,3-tetrafluoropropene, whereby formation of 3,3,3-trifluoropropene is suppressed. | 12-29-2011 |
20120022300 | Methods for Making 3-Chloro-1,1,1,6,6,6-Hexafluoro-2,4-Hexadiene - Disclosed are compositions and systems having utility in numerous situations, including in particular solvent cleaning systems, as well as refrigerant lubricants and/or compatibilizing agents, and to methods which utilize such compositions and systems. More particularly, the present invention in preferred aspects is directed to solvents, blowing agents, heat transfer fluids and compatibilizing agents comprising the compound | 01-26-2012 |
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 |
20120184785 | METHODS OF MAKING 2,3,3,3-TETRAFLUORO-2-PROPENE - Disclosed is a process for the manufacture of 1234yf from 1,1,2,3-tetrachloropropene, abbreviated herein as “TCP,” in three integrated steps:
| 07-19-2012 |
20120283490 | System, Device and Method for Preparing Tracers and Transferring Materials During Radiosynthesis - A system, apparatus, and method for transferring chemical solutions and synthesizing a tracer. For transferring chemical solutions, the system comprises a primary container; a secondary container; a first line in communication with the primary container and the secondary container. The first line facilitates the flow of gas and/or liquid between the primary container and the secondary container. A valve located upstream of the secondary container and downstream of the primary container regulates flow within the first line; a second line in communication with the secondary container. For synthesizing a tracer, the system includes a source of a solution having a radionuclide. A first container has a tracer precursor and is in communication with the source of solution. | 11-08-2012 |
20130060068 | PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES - A process is disclosed for making CF | 03-07-2013 |
20130296617 | COMPOSITIONS CONTAINING A COMBINATION OF Z AND E STEREOISOMERS OF HYDROFLUOROOLEFINS - Disclosed are the combinations containing Z and E stereoisomers of hydrofluoroolefins where the more toxic isomer is less than about 30% weight of the combination (vs the sum of Z+E), to minimize the toxicity impact in the applications they will. be used for such as cooling and heat fluids, foams blowing agents or solvents. Also disclosed are means to obtain combinations containing Z and E stereoisomers of hydrofluoroolefins. | 11-07-2013 |
20130303808 | PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS - Provided are methods for producing fluorinated organic compounds, which preferably comprises converting at least one compound of formula (I) CH | 11-14-2013 |
20130317262 | METHOD FOR PURIFYING 2,3,3,3-TETRAFLUOROPROPENE - To provide a method for purifying R-1234yf, whereby it is possible to efficiently remove even impurities such as R-1243zf, etc. which are difficult to separate by distillation purification, from a mixture containing R-1234yf as the main component and various impurities, such as a gas formed by reacting R-1214ya with hydrogen. The method for purifying R-1234yf comprises a step of bringing a mixture which contains R-1234yf as the main component and also contains hydrohaloalkene impurities other than R-1234yf and hydrohaloalkane impurities, into contact with a solvent that has an extraction/removal index (r), as represented by the formula r=[4×(δD−17.2) | 11-28-2013 |
20140005446 | Method for Production of 1-Chloro-3,3,3-Trifluoropropene | 01-02-2014 |
20140357907 | Process for Producing 1,2-Dichloro-3,3,3-Trifluoropropene - Disclosed is a process for producing 1,2-dichloro-3,3,3-trifluoropropene, which is characterized by that 1-halogeno-3,3,3-trifluoropropene represented by the general formula [1]: | 12-04-2014 |
20150011804 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - The present invention relates, in part, an improved process for the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf). In certain non-limiting embodiments, the invention relates to methods for improving process efficiency during the fluorination of 1,1,2,3-tetrachloropropene, 2,3,3,3-tetrachloropropene, and/or 1,1,1,2,3-pentachloropropane to 2-chloro-3,3,3-trifluoropropene by separating and recycling unreacted HF, unreacted starting materials, and/or certain pro cess intermediates from the 2-chloro-3,3,3-trifluoropropene product stream. | 01-08-2015 |
20150360218 | ACTIVATION AND REGENERATION OF FLUORINATION CATALYSTS - A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. with a source of reactive fluorine, for example nitrogen trifluoride (NF3) or fluorine (F2). Fluorinated compounds may be prepared by the gas phase reaction of hydrogen fluoride (HF) with various substrates such as chlorinated compounds. A number of metal oxide-based catalysts have been developed for this purpose. | 12-17-2015 |
20160096787 | METHOD FOR PREPARING 2,3,3,3-TETRAFLUOROPROPENE - A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h | 04-07-2016 |