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| Number | Title | Issue Date |
| 8058489 | Processes for producing pentafluoropropenes and azeotropes comprising HF and certain halopropenes of the formula CClF, CClF, or CHF A process is disclosed for making CF3CF═CHF or mixtures thereof with CF2═CFCHF2. The process involves (i) contacting CHCl2CF2CF3, and optionally CHClFCF2CClF2, in a reaction ... | 11/15/2011 |
| 7872161 | Process for producing 2,3,3,3-tetrafluoropropene A process is disclosed for making CF3CF═CH2 The process involves (i) contacting CHCl2CF2CF3 in a reaction zone in the presence of a catalytically effective amount of a dehydrofluorination catalyst to produce C... | 01/18/2011 |
| 7795482 | 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 ... | 09/14/2010 |
| 7629496 | Process for the manufacture of 1,1,1,3,3-pentafluoropropane A process for the manufacture of 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1,1,3,3,3-hexafluoropropane with a source of hydrogen. ... | 12/08/2009 |
| 7470828 | Direct conversion of HCFC 225ca/cb mixture to HFC 245cb and HFC 1234yf Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane. ... | 12/30/2008 |
| 7354890 | Cleaning composition and method Cleaning compositions composed of specific amounts of carbonic acid and/or carbonate, hydrogen peroxide, aluminum fluoride and water are highly effective for cleaning electronic devices of resist, resist residues, titanium dioxide, aluminum oxide and silicon dioxide... | 04/08/2008 |
| 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 |
| 7335805 | Processes for purifying reaction products and processes for separating chlorofluorinated 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... | 02/26/2008 |
| 7335804 | Direct conversion of HCFC 225ca/cb mixture Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane. ... | 02/26/2008 |
| 7332635 | Processes for purifying chlorofluorinated 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... | 02/19/2008 |
| 7329786 | Processes for producing CFCFHCF 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... | 02/12/2008 |
| 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 |
| 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 |
| 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 |
| 7247759 | Fluorination reactor Fluorination reactions in which an organic compound to be fluorinated is contacted with elemental fluorine and HF is produced as a byproduct are disclosed, wherein the elemental fluorine is contacted with the organic compound in the presence of a fluoride-adsorbing ... | 07/24/2007 |
| 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 |
| 7214839 | Method of making hydrofluorocarbons A manufacturing process for making hydrofluorocarbons (HFCs), by reacting a hydrochlorocarbon and HF in a liquid phase catalytic reactor using a large mole ratio of HF to hydrochlorocarbon to minimize formation of high boiling by-products and improve HF consumption ... | 05/08/2007 |
| 7208136 | Alcohol steam reforming catalysts and methods of alcohol steam reforming The present invention provides steam reforming catalyst compositions containing Pd and Zn, and methods of steam reforming alcohols over a catalyst. Surprisingly superior results and properties of the present invention, including low temperature activity and/or low c... | 04/24/2007 |
| 7202388 | Processes for preparing fluoroarenes from haloarenes Processes for preparing fluoroarenes are provided. The processes include contacting a compound having an unactivated aryl group with a source of fluoride or bifluoride in the presence of a transition metal a ligand. ... | 04/10/2007 |
| 7151197 | Processes for purifying chlorofluorinated compounds and processes for purifying CF3CFHCF3 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... | 12/19/2006 |
| 7135601 | Catalytic method for the production of fluoroalkylenes from chlorofluorohydrocarbons A process for producing a producing a product of the formula: R—CF═CHR1 wherein R is F or CF3 and R1 is F when R is F and is H when R is CF3 by reacting a reactant of the formula: CF... | 11/14/2006 |
| 7102040 | Fluoropolymer lined metallic vessel design The invention provides an apparatus useful in fluorinating organic compounds, or more particularly to a reactor system suitable for the fluorination of organic compounds on a commercial scale. The apparatus is also useful in chemical reactions including heating or c... | 09/05/2006 |
| 7026521 | Methane and methyl chloride as selective reducing agent in the transformation of hydrochlorofluorocarbons or chlorofluorocarbons to hydrofluorocarbons A gas phase reaction process for producing a hydrofluorocarbon from a hydrochlorofluorocarbon or chlorofluorocarbon reactant by contacting, in the presence of a catalyst, the hydrochlorofluorocarbon or chlorofluorocarbon reactant with a reducing agent selected from ... | 04/11/2006 |
| 6963016 | Process for the synthesis of highly active modified carbon supported palladium catalyst The present invention relates to a process for the synthesis of highly active modified carbon supported palladium catalyst by simultaneously impregnating activated carbon with a palladium precursor and an aluminium precursor. The carbon supported palladium catalyst ... | 11/08/2005 |
| 6927191 | Oxidation catalyst An inside layer including zeolite and an outside layer including alumina and Pd are formed in a layered shape on a carrier, and Ag and Bi are simultaneously allowed to be carried on the inside and outside layers through impregnation. Thus, production of an alloy thr... | 08/09/2005 |
| 6903063 | Azeotrope-like composition of 1-chloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa. ... | 06/07/2005 |
| 6878853 | Process for preparing dihalogenated adamantanes This invention discloses a process for preparing a dihalogenated adamantane by reacting an adamantane optionally substituted with alkyl at 1-position with a halosulfonic acid, comprising the first stage of monohalogenation conducted at −5 to 15° C. and then the s... | 04/12/2005 |
| 6784327 | Process for the production of fluorinated organic compounds and fluorinating agents A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a f... | 08/31/2004 |
| 6700026 | Method for preparing difluoromethane A method for preparing difluoromethane (CF2 H2, HFC-32) by the use of reaction of dichlorodifluoromethane (CF2 Cl2, CFC-12) and/or monochlorodifluoromethane (CF2 ClH, HCFC-22) with hydrogen in the pre... | 03/02/2004 |
| 6583328 | Method for the preparation of 1,1,1,3,3-pentafluoropropene and 1,1,1,3,3-pentafluoropropane A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing ... | 06/24/2003 |
| 6566567 | Catalyst and method for producing 1,1-difluoroethane The present invention relates to a catalyst for producing 1,1-difluoroethane (HCFC-152a) and producing method thereof. More particularly, it is to provide the catalyst prepared by impregnating palladium on the active carbon pretreated with an aqueous hydr... | 05/20/2003 |
| 6551469 | Photochlorination of 1,1,1,3,3-pentafluoropropane A process for preparing 1-chloro-1,1,3,3,3-pentafluoropropane, CF3 CH2 CF2 Cl, comprising contacting in a reaction zone in the substantial absence of oxygen, reactants comprising chlorine and 1,1,1,3,3-pentafluoropropane, ... | 04/22/2003 |
| 6548720 | Process for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof A process is disclosed for producing the pentfluropropenes of the formula CF3 CX.dbd.CF2, where X is H or Cl. The process involves hydrodehalogenating CF3 CCl2 CF3 with hydrogen at an elevated tempera... | 04/15/2003 |
| 6525231 | Producing hydrofluoro compounds by hydrogenolysis of iodides A process is disclosed for producing RCFZH by reaction of an iodide compound of the formula R'CFZI with hydrogen at an elevated temperature, wherein R is SF5, CF2 SF5 or Rf CF2 Y, R' is SF5... | 02/25/2003 |
| 6509495 | Selective hydrodehalogenation method The invention concerns a selective hydrodehalogenation method characterised in that it comprises a step which consists in contacting a substrate including a sp 3 hybridisation carbon atom bearing an electro-attracting group and at least a fluorine atom, a... | 01/21/2003 |
| 6403846 | Fluorinated, saturated hydrocarbons A composition containing less than 95 mol % of a trihydrofluorinated saturated hydrocarbon represented by the following formula (I) Rf1 --R1 --Rf2 (I) (wherein R1 represents a carbon chain in which CHF and CH2... | 06/11/2002 |
| 6388147 | Production of 1,2-dihydro and 2,2-dihydro hexafluoropropanes and azeotropes thereof with HF CF3 CHFCHF2 production is disclosed which involves reacting CF3 CF.dbd.CHF with HF at an elevated temperature over a catalyst selected from the group consisting of aluminum fluoride, fluorided alumina, metals supported on ... | 05/14/2002 |
| 6376727 | Processes for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof Disclosed are azeotropic compositions comprising CF3 CHFCF3 and HF. Also disclosed are compositions and a process for producing compositions comprising (c1) CF3 CHFCF3, CF3 CH2 CF3 | 04/23/2002 |
| 6340776 | Process for producing 1,1,1-trifluoroacetone A process for producing 1,1,1-trifluoroacetone includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the general formula (1), by a hydrogen gas in the presence of a catalyst containing a transition met... | 01/22/2002 |
| 6291729 | Halofluorocarbon hydrogenolysis A highly selective process is disclosed for the hydrogenolysis of 2,2-dichlorohexafluoropropane (i.e., CFC-216aa or CF3 CCl2 CF3) to 2,2-dihydrohexafluoropropane (i.e., HFC-236fa or CF3 CH2 CF3 | 09/18/2001 |
