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| Number | Title | Issue Date |
| 8129574 | Hydrogenation process for fluorocarbons Disclosed is a process and apparatus for the catalytic hydrogenation of fluoroolefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commerci... | 03/06/2012 |
| 7902410 | Process for the manufacture of fluorinated alkanes A process for the production of fluorinated alkanes by contacting a feed stream containing a fluorinated olefin and a reducing agent, preferably with a first amount of catalyst to produce a fluorinated alkane, at a first conversion level, wherein a first effluent st... | 03/08/2011 |
| 7759532 | Refrigerant additive compositions containing perfluoropolyethers The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system. ... | 07/20/2010 |
| 7371904 | Processes for synthesis of 1,3,3,3-tetrafluoropropene Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H═CHX3, wherein X1, X2, and X3 | 05/13/2008 |
| 7348461 | Processes for halogenating compounds Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other... | 03/25/2008 |
| 7345209 | Processes for synthesis of 1,3,3,3-tetrafluoropropene Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises, in one preferred embodiment, providing a compound of the formula CF3CH2CHFX, wherein X is a selected from the group consisting of chlorine, bromine and iodin... | 03/18/2008 |
| 7305850 | Distillation process using microchannel technology The disclosed invention relates to a process for distilling a fluid mixture in a microchannel distillation unit, the microchannel distillation unit comprising a plurality of microchannel distillation sections, the fluid mixture comprising a more volatile component a... | 12/11/2007 |
| 7294734 | Process for converting a hydrocarbon to an oxygenate or a nitrile This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optiona... | 11/13/2007 |
| 7285692 | Process for the preparation of 1,1,1,3,3-pentafluoropropane and 1,1,1,2,3-pentafluoropropane A process is disclosed for the manufacture of CF3CH2CHF2 and CF3CHFCh2F. The process involves (a) reacting hydrogen fluoride, chlorine, and at least one halopropene of the formulaCX3CCl═CClX (where ... | 10/23/2007 |
| 7285691 | Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and at least one of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3,3,3-heptafluoropropane A process is disclosed for the manufacture of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa) and at least one 1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea). The process involves (a) reacting HF, Cl2, and at least on... | 10/23/2007 |
| 7285690 | Process for the preparation of 1,1,1,3,3-pentafluoropropane and 1,1,1,3,3,3-hexafluoropropane A process for the manufacture of CF3CH2CHF2 and CF3CH2CF3 is disclosed. The process involves (a) reacting HF and at least one halopropene of the formula CX3CCl═CClX (where each X is indep... | 10/23/2007 |
| 7268261 | Production processes Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245... | 09/11/2007 |
| 7255845 | Process for conducting an equilibrium limited chemical reaction in a single stage process channel This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed. ... | 08/14/2007 |
| 7250074 | Process for separating nitrogen from methane using microchannel process technology The disclosed invention relates to a process for separating methane or nitrogen from a fluid mixture comprising methane and nitrogen, the process comprising: (A) flowing the fluid mixture into a microchannel separator, the microchannel separator comprising a plurali... | 07/31/2007 |
| 7250539 | Materials and methods for the conversion of hydrofluorocarbons Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245... | 07/31/2007 |
| 7230146 | Process for producing fluoropropenes Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF3CY═CXNHP, wherein X and Y are independently hydrogen or a halogen selected from fl... | 06/12/2007 |
| 7226574 | Oxidation process using microchannel technology and novel catalyst useful in same A process is disclosed for converting a hydrocarbon reactant to a product comprising CO and H2. The process comprises: (A) flowing a reactant composition comprising the hydrocarbon reactant and oxygen or a source of oxygen through a microchannel reactor i... | 06/05/2007 |
| 7223892 | Process for the separation of a mixture comprising at least one hydrofluoroalkane Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, according to which a hydrofluoroalkane/hydrogen fluoride mixture is reacted with at least one chlorinated or chlorofluorinated precursor of the hydrofluoroalkane... | 05/29/2007 |
| 7220390 | Microchannel with internal fin support for catalyst or sorption medium This invention relates to an apparatus, comprising: at least one process microchannel having a height, width and length, the height being up to about 10 mm, the process microchannel having a base wall extending in one direction along the width of the process microch... | 05/22/2007 |
| 7145046 | Production of fluorine compounds Inorganic and organic compounds containing fluorine can be produced, for example, from corresponding chlorine-containing compounds by chlorine/fluorine exchange using fluorinating agents. Monocyclic or bicyclic compounds containing at least two nitrogen atoms, at le... | 12/05/2006 |
| 7094936 | Process for preparing halogenated alkanes Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl ch... | 08/22/2006 |
| 7084180 | Fischer-tropsch synthesis using microchannel technology and novel catalyst and microchannel reactor The disclosed invention relates to a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant compositi... | 08/01/2006 |
| 7067707 | Pentafluoroethane production method Process for the manufacture of pentafluoroethane, according to which tetrafluoroethylene is subjected to reaction with an organic nitrogenous base hydrofluoride at a temperature of greater than 100° C. and not exceeding 160° C. ... | 06/27/2006 |
| 7053253 | Process for purifying hexafluoropropene dimers Perfluoro-4-methyl-2-pentene containing the undesirable perfluoro-2-methyl-2-pentene may be purified by contacting the mixture with at least a stoichiometric equivalent of an aqueous inorganic base (relative to the perfluoro-2-methyl-2-pentene), in the presence of a... | 05/30/2006 |
| 7041859 | Method for halogenating or radiohalogenating a chemical compound A method for obtaining a halogenated organic compound, whereby an organotrifluoroborate compound is reacted with a halide ion in the presence of an oxidizing agent to produce the corresponding halogenated organic compound. The method may be used for producing radioh... | 05/09/2006 |
| 7038095 | Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters A mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI wherein Rf represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree... | 05/02/2006 |
| 7029647 | Process for producing hydrogen peroxide using microchannel technology This invention relates to a process for making hydrogen peroxide in a microchannel reactor. The process comprises flowing a process feed stream and a staged addition feed stream in a process microchannel in contact with each other to form a reactant mixture comprisi... | 04/18/2006 |
| 7000427 | Process for cooling a product in a heat exchanger employing microchannels This invention relates to a process for cooling or liquefying a fluid product (e.g., natural gas) in a heat exchanger, the process comprising: flowing a fluid refrigerant through a set of refrigerant microchannels in the heat exchanger; and flowing the product throu... | 02/21/2006 |
| 6992229 | Method for purifying a fluorinated hydroxyl compound The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a mixture containing a fluorinated hydroxyl compound of Rf—CR | 01/31/2006 |
| 6969505 | Process for conducting an equilibrium limited chemical reaction in a single stage process channel This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed. ... | 11/29/2005 |
| 6958422 | Pyrolysis process The present invention relates to the pyrolysis of hydrochlorofluorocarbons to form fluoromonomers such as tetrafluoroethylene, the pyrolysis being carried out in a reaction zone lined with nickel and mechanically supported by a jacket of other corrosion resistant me... | 10/25/2005 |
| 6956138 | Method for producing a fluorine-containing compound The present invention provides a method for obtaining a compound useful as a raw material for various fluororesins in high yield by a short process by using a starting material which is inexpensive and readily available. ... | 10/18/2005 |
| 6946582 | Process for producing fluoroalkyl iodide The present invention provides a process for producing a fluoroalkyl iodide represented by the general formula (II): Rf-CH2CH2I (II) wherein Rf is a perfluoroalkyl or polyfluoroalkyl group comprising 1 to 20 carbons, th... | 09/20/2005 |
| 6933417 | Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only partially recovered from the... | 08/23/2005 |
| 6924403 | Synthesis of hexafluoropropylene The present invention relates to the process of pyrolyzing tetrafluoroethylene to hexafluoropropylene by carrying out the pyrolysis in a tubular reactor that is lined with either nickel or nickel alloy which contains no greater than 8 wt % chromium. ... | 08/02/2005 |
| 6919490 | Method for continuous production of a perfluoroalkyl iodide telomer The present invention relates to a process for continuously producing a perfluoroalkyl iodide represented by the general formula Rf(CF2CF2)nI, wherein Rf is a C1-6 perfluoroalkyl and n is an integer f... | 07/19/2005 |
| 6909024 | Process for the conversion of ethylene to vinyl chloride and novel catalyst compositions useful for such process This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to ... | 06/21/2005 |
| 6897344 | Method of treating fluorine compound and treated substance Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover... | 05/24/2005 |
| 6872861 | Process for preparing polyfluoroalkylithium compounds The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases. ... | 03/29/2005 |
| 6861565 | Process for producing a fluoroalkanol A process for producing a fluoroalkanol which can easily be industrially practiced with high selectivity, is provided. CHR1R2OH, a radical initiator and CF2═CFRf are continuously supplied and reacted at from 105 t... | 03/01/2005 |
