Patents Assigned to Mexichem Amanco Holding S.A. de C.V.
  • Publication number: 20200101417
    Abstract: A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. A heat transfer device comprising a heat transfer fluid comprising a fluoropropene, and a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. Preferably, the fluoropropene is R134yf or R-1225ye.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: ROBERT ELLIOTT LOW, STUART CORR
  • Patent number: 10493399
    Abstract: A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. A heat transfer device comprising a heat transfer fluid comprising a fluoropropene, and a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. Preferably, the fluoropropene is R134yf or R-1225ye.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 3, 2019
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Robert Elliott Low, Stuart Corr
  • Patent number: 10442743
    Abstract: The present invention provides a process for the preparation of a (hydro)(chloro)fluoroalkene by contacting a reagent stream comprising a hydrochlorofluoroalkane with a catalyst in a reactor to dehydrochlorinate at least a portion of the hydrochlorofluoroalkane to produce a product stream comprising the (hydro)(chloro)fluoroalkene and hydrogen chloride (HCl), wherein the catalyst is selected from the group consisting of metal oxide catalysts, metal halide catalysts, zero-valent metal catalysts, carbon-based catalysts and mixtures thereof, and wherein (i) the catalyst is chlorinated prior to contacting it with the reagent stream comprising the hydrochlorofluoroalkane; and/or (ii) the contacting step is carried out in the presence of a HCl co-feed.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 15, 2019
    Assignee: MEXICHEM AMANCO HOLDING S.A. de C.V.
    Inventors: Andrew Paul Sharratt, Claire Nicola Rees, Maxine Doran
  • Publication number: 20190249056
    Abstract: The invention provides a heat transfer composition comprising: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270) propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE. C.V.
    Inventor: ROBERT E LOW
  • Patent number: 10266736
    Abstract: The invention provides a heat transfer composition comprising: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270) propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: April 23, 2019
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventor: Robert E. Low
  • Patent number: 10258569
    Abstract: A pharmaceutical solution for a medication delivery apparatus, especially a metered dose inhaler, is described. The pharmaceutical solution comprises: (a) a liquefied propellant component consisting essentially of and preferably consisting entirely of 1,1-difluoroethane (R-152a); (b) ethanol; and (c) a drug component dissolved in the propellant/ethanol mixture consisting of at least one drug selected from the group consisting of beclomethasone dipropionate (BDP) and fluticasone propionate (FP).
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 16, 2019
    Assignee: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Patent number: 10258568
    Abstract: A pharmaceutical solution for a medication delivery apparatus, especially a metered dose inhaler, is described. The pharmaceutical solution comprises: (a) a liquefied propellant component consisting essentially of and preferably consisting entirely of 1,1-difluoroethane (R-152a); (b) ethanol; and (c) a drug component dissolved in the propellant/ethanol mixture consisting of at least one drug selected from the group consisting of beclomethasone dipropionate (BDP) and fluticasone propionate (FP).
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 16, 2019
    Assignee: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Publication number: 20190083927
    Abstract: A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. A heat transfer device comprising a heat transfer fluid comprising a fluoropropene, and a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. Preferably, the fluoropropene is R134yf or R-1225ye.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 21, 2019
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: ROBERT ELLIOTT LOW, STUART CORR
  • Patent number: 10189757
    Abstract: A chromia-based fluorination catalyst comprising at least one additional metal selected from zinc, nickel, aluminum and magnesium in which from 0.1 to 8.0% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crystalline compounds of the at least one additional metal. The catalyst can be used in processes for producing a fluorinated hydrocarbon.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 29, 2019
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Andrew P Sharratt, John D Scott
  • Patent number: 10179754
    Abstract: The present invention relates to a process for isomerizing a C3-7 (hydro)(halo)fluoroalkene comprising (a) providing a reactor feed stream comprising the C3-7 (hydro)(halo)fluoroalkene; and (b) contacting the C3-7 (hydro)(halo)fluoroalkene with a catalyst comprising alumina to isomerize the C3-7 (hydro)(halo)fluoroalkene, wherein the catalyst has a sodium content of less than about 800 ppm.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 15, 2019
    Assignee: MEXICHEM AMANCO HOLDING S.A. de C.V.
    Inventors: Claire E McGuinness, Andrew P Sharratt
  • Patent number: 10167242
    Abstract: The invention provides a process for preparing a C3-7 (hydro)fluoroalkene comprising dehydrohalogenating a C3-7 hydro(halo)fluoroalkane in the presence of a catalyst comprising a metal oxide supported on alumina, wherein the catalyst has a sodium content of less than about 800 ppm.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 1, 2019
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Andrew P Sharratt, Claire E McGuinness, Sheryl C Carolan
  • Patent number: 10130909
    Abstract: A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. A heat transfer device comprising a heat transfer fluid comprising a fluoropropene, and a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. Preferably, the fluoropropene is R134yf or R-1225ye.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: November 20, 2018
    Assignee: MEXICHEM AMANCO HOLDING S.A. de C.V.
    Inventors: Robert E Low, Stuart Corr
  • Publication number: 20180318797
    Abstract: A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in those aggregates.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 8, 2018
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventor: Andrew P. Sharratt
  • Publication number: 20180265436
    Abstract: The present invention provides a process for the preparation of a (hydro)(chloro)fluoroalkene by contacting a reagent stream comprising a hydrochlorofluoroalkane with a catalyst in a reactor to dehydrochlorinate at least a portion of the hydrochlorofluoroalkane to produce a product stream comprising the (hydro)(chloro)fluoroalkene and hydrogen chloride (HCl), wherein the catalyst is selected from the group consisting of metal oxide catalysts, metal halide catalysts, zero-valent metal catalysts, carbon-based catalysts and mixtures thereof, and wherein (i) the catalyst is chlorinated prior to contacting it with the reagent stream comprising the hydrochlorofluoroalkane; and/or (ii) the contacting step is carried out in the presence of a HCl co-feed.
    Type: Application
    Filed: April 16, 2018
    Publication date: September 20, 2018
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: ANDREW PAUL SHARRATT, CLAIRE NICOLA REES, MAXINE DORAN
  • Publication number: 20180265437
    Abstract: 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.
    Type: Application
    Filed: April 24, 2018
    Publication date: September 20, 2018
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: John W. Smith, Claire McGuinness, Andrew P. Sharratt, Andrew M. Taylor
  • Patent number: 10039828
    Abstract: A pharmaceutical composition is described that is suitable for delivery from a pressurised container. The composition is free of polar excipients and comprises: (a) a propellant component that consists essentially of 1,1-difluoroethane (R-152a); (b) a surfactant component that comprises oleic acid; and (c) a drug component that consists of salbutamol sulphate. The pharmaceutical composition can be delivered using a metered dose inhaler (MDI).
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: August 7, 2018
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Patent number: 9957210
    Abstract: 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.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: May 1, 2018
    Assignee: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.
    Inventors: John W. Smith, Claire McGuinness, Andrew P. Sharratt, Andrew M. Taylor
  • Patent number: 9944578
    Abstract: The present invention provides a process for the preparation of a (hydro)(chloro)fluoroalkene by contacting a reagent stream comprising a hydrochlorofluoroalkane with a catalyst in a reactor to dehydrochlorinate at least a portion of the hydrochlorofluoroalkane to produce a product stream comprising the (hydro)(chloro)fluoroalkene and hydrogen chloride (NCI), wherein the catalyst is selected from the group consisting of metal oxide catalysts, metal halide catalysts, zero-valent metal catalysts, carbon-based catalysts and mixtures thereof, and wherein (i) the catalyst is chlorinated prior to contacting it with the reagent stream comprising the hydrochlorofluoroalkane; and/or (ii) the contacting step is carried out in the presence of a HCI co-feed.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: April 17, 2018
    Assignee: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: Andrew Paul Sharratt, Claire Nicola Rees, Maxine Doran
  • Publication number: 20180072641
    Abstract: A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity and from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of the chromium is present as chromium (VI). The use of the zinc-promoted, chromium-containing catalyst in a fluorination process in which a hydrocarbon or halogenated hydrocarbon is reacted with hydrogen fluoride in the vapour-phase at elevated temperatures is also described.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventor: ANDREW P SHARRATT
  • Publication number: 20180044269
    Abstract: A process for treating a composition comprising one or more desired (hydro)halocarbons and one or more undesired halogenated hydrocarbon containing impurities so as to reduce the concentration of at least one undesired halogenated hydrocarbon containing impurity, the process comprising contacting the composition with an adsorbent comprising a carbon molecular sieve.
    Type: Application
    Filed: October 30, 2017
    Publication date: February 15, 2018
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: Andrew P. SHARRATT, John HAYES, Claire REES