Halogen Product Produced Patents (Class 204/157.94)
  • Patent number: 10125068
    Abstract: The instant invention relates to a process and method for manufacturing 2,3,3,3-tetrafluoropropene by dehydrohalogenating a reactant stream of 2-chloro-1,1,1,2-tetrafluoropropane that is substantially free from impurities, particularly halogenated propanes, propenes, and propynes.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 13, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Haiyou Wang
  • Publication number: 20150122121
    Abstract: Gas separation membrane compositions including at least one crosslinked polymer, gas separation membranes made of such compositions, methods for making such gas separation membranes, and methods of using such membranes to separate gases are described. In one embodiment, the crosslinked polymer includes polyarylene ethers (PAE).
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventors: James McGrath, Yu Chen, Rulian Guo, Benny Freeman
  • Publication number: 20130165658
    Abstract: This invention is directed to a process for the preparation of high yield alkyl or aryl iodide from its corresponding carboxylic acid using N-iodo amides.
    Type: Application
    Filed: June 9, 2011
    Publication date: June 27, 2013
    Inventors: Gennady Nisnevich, Mark Gandelman, Kseniya Kulbitski
  • Publication number: 20120289711
    Abstract: The present invention relates to a method for producing carbon nanomaterials and/or carbon micromaterials, in particular multi-wall carbon nanotubes. This method is characterized according to the invention in that the materials, in particular the side walls of the materials, undergo microwave-assisted functionalization. In addition, a correspondingly modified material is described.
    Type: Application
    Filed: October 25, 2010
    Publication date: November 15, 2012
    Applicant: FUTURECARBON GMBH
    Inventors: Jens Helbig, Christian Zenkel
  • Publication number: 20110184214
    Abstract: Process for producing fluorinated olefins from fluorinated materials, the process comprising thermally decomposing the fluoropolymers into fluoroolefins in a reactor having a feeding zone where the fluorinated materials are fed into the reactor and a decomposition zone where the fluorinated materials are thermally decomposed and wherein the thermal decomposition is carried out in the presence of microwave irradiation.
    Type: Application
    Filed: September 30, 2009
    Publication date: July 28, 2011
    Inventors: Klaus Hintzer, Gunther J. Kaempf, Thomas Kolbeck, Tilman C. Zipplies, Monika A. Willert-Porada, Thorsten Gerdes, Achim Schmidt-Rodenkirchen
  • Patent number: 7943015
    Abstract: A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a copolymer of a perfluoro (alkyl vinyl ether). The perfluoro (alkyl vinyl ether) is selected from the group consisting of CF30CF?CF2, C2F5OCF?CF2, C3F7OCF?F2, and mixture thereof. Also disclosed is a photochemical reaction process wherein light from a light source is directed through said reactor wall to interact with reactants in said reactor. A process for increasing the fluorine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound; and (b) reacting the halogenated hydrocarbon produced in (a) with HF.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: May 17, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Publication number: 20100181186
    Abstract: The invention consequently relates, in one aspect, to a process for obtaining a hydrofluoroalkane comprising at least two carbon atoms, which is purified of unsaturated organic impurities, according to which the hydrofluoroalkane containing organic impurities including (chloro)fluoro olefins is subjected to at least one purification treatment with bromine or BrCl, preferably in the presence of, an initiator. The process is suitable, for example, to purify 1,1,1,2-tetrafluoroethane. A further aspect concerns the application of LEDs or OLEDs to support chemical reactions of the gas-gas, liquid-liquid or gas-liquid type, and a respective reactor.
    Type: Application
    Filed: July 16, 2008
    Publication date: July 22, 2010
    Applicant: SOLVAY FLUOR GMBH
    Inventors: Ercan Uenveren, Eckhard Hausmann, Johannes Eicher, Kerstin Eichholz
  • Patent number: 7282120
    Abstract: A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the reaction mixture with UV light having a wavelength of ??280 nm. In this way pentachloroethane can be produced from trichloroethylene, CFC-113 from HCFC-123 or HFC-133a, CFC-112a from HCFC-142b, or HCFC-123 from HCFC-133a. The method also is suitable for separating photochlorinatable impurities from HFC-365-mfc to obtain purified HFC-365-mfc. Advantages include high yields and excellent selectivity.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: October 16, 2007
    Assignee: Solvay Fluor GmbH
    Inventors: Max Braun, Kerstin Eichholz, Stefan Palsherm, Carsten Brosch
  • Patent number: 6702929
    Abstract: In the synthesis of 1,1,1,3,3-pentafluorobutane (R-365mfc), a mixture of R-365mfc and the impurity 1,1,1,3-tetrafluoro-2-butene (R-1354mzy) is purified and R-1354mzy is removed from the mixture by contacting the mixture with 1-5 mols of chlorine for each mol of R-1354mzy in the presence of ultraviolet light having a wavelength between about 300 to 400 nm which provides at least 0.02 watts-hour/kg of the mixture. The R-1354mzy is reduced to below 10 wt. ppm as it is converted to 2,3-dichloro-1,1,1,3-tetrafluorobutane (R-354) or other butane containing more chlorine and having a higher boiling point than R-365mfc. The butane(s) may be separated more easily from R-365mfc. The photochlorination is effected in a manner such that at least about 96 weight percent of the starting amount of R-365mfc is maintained in the mixture.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: March 9, 2004
    Assignee: Honeywell International Inc.
    Inventors: Stephen Frederic Yates, Hsueh Sung Tung
  • Publication number: 20040016633
    Abstract: A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the reaction mixture with UV tight having a wavelength of &lgr;≧280 nm. In this way pentachloroethane can be produced from trichloroethylene, CFC-113 from HCFC-123 or HFC-133a, CFC-112a from HCFC-142b, or HCFC-123 from HCFC-133a. The method also is suitable for separating photochlorinatable impurities from HFC-365-mfc to obtain purified HFC-365-mfc. Advantages include high yields and excellent selectivity.
    Type: Application
    Filed: July 28, 2003
    Publication date: January 29, 2004
    Applicant: Solvay Pharmaceuticals GmbH
    Inventors: Max Braun, Kerstin Eichholz, Stefan Palsherm, Carsten Brosch
  • Patent number: 6541677
    Abstract: A photochemical process for removing or minimizing the concentration of PCDD or PCDF compounds within an industrial gas stream. The process includes the gas phase of PCDD or PCDF compounds. Light within a particular spectral range is irradiated into the gas stream and is absorbed by the PCDD and PCDF compounds in the presence of a free radical hydrogen donor and this results in producing a lower chlorinated PCDD or PCDF compound form. In addition, the gas stream may be treated by removing particular matter therefrom and thereafter subjected to the above-described irradiation. Further, as another optional step, the gas stream may be irradiated with the specific purpose of targeting PCDD and PCDF precursor compounds. In this case, the irradiation is absorbed by the precursor compounds causing them to be chemically modified to different chemical compounds that do not participate in chemical reactions that result in the formation of PCDD and PCDF compounds.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: April 1, 2003
    Assignee: Air Control Techniques, P.C.
    Inventors: John R. Richards, Daniel M. Richards, Todd T. Brozell, Tommy E. Holder, David G. Goshaw
  • Publication number: 20020157940
    Abstract: A process for preparing purified, saturated, partially fluorinated or perfluorinated hydrocarbon compounds from crude products which are contaminated with impurity compounds which absorb light at a wavelength of &lgr;>200 nm by irradiating the crude product with UV radiation of a wavelength of &lgr;>200 nm and thereafter recovering highly pure, partially fluorinated or perfluorinated hydrocarbon compounds from the irradiated reaction product, for example, by simple vacuum distillation.
    Type: Application
    Filed: March 4, 2002
    Publication date: October 31, 2002
    Inventors: Max Braun, Carsten Brosch, Heinz Gress
  • Publication number: 20020125122
    Abstract: A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the reaction mixture with UV light having a wavelength of &lgr;≧280 nm. In this way pentachloroethane can be produced from trichloroethylene, CFC-113 from HCFC-123 or HFC-133a, CFC-112a from HCFC-142b, or HCFC-123 from HCFC-133a. The method also is suitable for separating photochlorinatable impurities from HFC-365-mfc to obtain purified HFC-365-mfc. Advantages include high yields and excellent selectivity.
    Type: Application
    Filed: December 17, 2001
    Publication date: September 12, 2002
    Inventors: Max Braun, Kerstin Eichholz, Stefan Palsherm, Carsten Brosch
  • Patent number: 6398922
    Abstract: The invention provides a process for carrying out a photochemical gas-liquid process for halogenating alkylbenzenes, the process being carried out in a photochemical gas-liquid reactor comprising a vessel, a central source of radiation, a gas distributor, and additionally, inner sleeve means arranged concentrically between the source of radiation and the vessel, the inner sleeve means providing for internal recirculation of reaction liquid.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 4, 2002
    Assignee: Elf Atochem S.A.
    Inventor: Gerard Desire
  • Publication number: 20010045350
    Abstract: A method for producing inexpensively in a high yield a halogen-containing aromatic compound, particularly a halogen-containing aromatic compound incorporating therein a bromodifluoroalkyl group, and a halogen-containing naphthalene compound useful as a raw material for a resin excelling in heat resistance, chemical resistance and water repellency, and having a low dielectric constant and a low refractivity are provided.
    Type: Application
    Filed: June 21, 2001
    Publication date: November 29, 2001
    Applicant: Nippon Shokubai Co., Ltd., a Japan corporation
    Inventors: Seiichi Teshima, Masayoshi Konishi, Kozo Tajiri, Yoshinobu Asako, Sadao Miki
  • Publication number: 20010019015
    Abstract: The invention provides a process for carrying out a photochemical gas-liquid process for halogenating alkyl-benzenes, said process being carried out in a photochemical gas-liquid reactor comprising a vessel, a central source of radiation, a gas distributor, and additionally, inner sleeve means arranged concentrically between the source of radiation and the vessel, said inner sleeve means providing for internal recirculation of reaction liquid.
    Type: Application
    Filed: February 20, 2001
    Publication date: September 6, 2001
    Inventor: Gerard Desire
  • Patent number: 6265628
    Abstract: In a process for the continuous preparation of mono- and/or bis(mono- and/or di- and/or trichloromethyl) benzenes by gradual chlorination of the corresponding mono-or dimethylbenzenes in several reactors in cascade, the first reactor has a greater volume than each of the other reactors.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: July 24, 2001
    Assignee: Elf Atochem, S.A.
    Inventors: Raymond Commandeur, Régis Loze
  • Patent number: 6203670
    Abstract: Provided is a process for grafting a substituted difluoromethyl group onto a compound bearing at least one electrophilic substituent, comprising (i) contacting the compound bearing at least one electrophilic substituent with a nucleophilic reagent which comprises (a) a fluorocarboxylic acid having the formula Ea—CF2—COOH, wherein Ea is an electron-withdrawing atom or group, the fluorocarboxylic acid being at least partially salified with an organic or inorganic cation and (b) a polar aprotic solvent, and (ii) exposing the resulting medium of reaction to the action of microwave energy.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: March 20, 2001
    Assignee: Rhodia Chimie
    Inventors: Gérard Forat, Jean-Manuel Mas, Laurent Saint-Jalmes
  • Patent number: 6203671
    Abstract: A process for preparing a fluorinated product comprising: (a) reacting a molar excess of an aliphatic starting compound in liquid phase with fluorine in the presence of actinic radiation to produce a product mixture containing a fluorinated product having at least one hydrogen atom; and (b) recovering the fluorinated product from the product stream.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: March 20, 2001
    Assignee: AlliedSignal Inc.
    Inventor: Timothy R. Demmin
  • Patent number: 6179972
    Abstract: A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: January 30, 2001
    Assignee: KSE, Inc.
    Inventor: James R. Kittrell
  • Patent number: 6179970
    Abstract: Compounds containing a primary amino group are converted into compounds containing a fluorine atom in place of the amino group by reaction of the amino compound with hydrogen fluoride and a nitrosating reagent under the influence of ultrasound or microwaves.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: January 30, 2001
    Assignee: Rhodia Limited
    Inventors: Paul Coe, Tony Waring, Claude Mercier