Patents by Inventor Andrew P. Sharratt

Andrew P. Sharratt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of 2, 3, 3, 3-tetrafluoropropene
    Patent number: 9162948
    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 1225 ye 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: May 15, 2009
    Date of Patent: October 20, 2015
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: John W Smith, Claire McGuiness, Andrew P Sharratt, Andrew M Taylor
  • Process for Purifying (Hydro)Fluoroalkenes
    Publication number: 20150191407
    Abstract: The invention relates to a process for removing one or more undesired (hydro)halocarbon compounds from a (hydro)fluoroalkene, the process comprising contacting a composition comprising the (hydro)fluoroalkene and one or more undesired (hydro)halocarbon compounds with an aluminium-containing absorbent, activated carbon, or a mixture thereof.
    Type: Application
    Filed: March 19, 2015
    Publication date: July 9, 2015
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: ANDREW P. SHARRATT, CLAIRE E. MCGUINESS, JOHN HAYES
  • PROCESS FOR PREPARING A C3-C7 (HYDRO) FLUOROALKENE BY DEHYDROHALOGENATION
    Publication number: 20150126786
    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: Application
    Filed: May 1, 2013
    Publication date: May 7, 2015
    Inventors: Andrew P Sharratt, Claire E McGuinness, Sheryl C Carolan
  • Process for the Preparation of 1,1,1-Trifluoropropane
    Publication number: 20150126785
    Abstract: The invention provides a process comprising contacting (1243zf) or (253fb) with hydrogen in the presence of a hydrogenation catalyst to produce a composition comprising 1,1,1-trifluoropropane (263fb).
    Type: Application
    Filed: July 18, 2012
    Publication date: May 7, 2015
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: Andrew P. Sharratt, Claire Elizabeth Mcguinness, Emma Jane Hodgson
  • Process for purifying (hydro) fluoroalkenes
    Patent number: 9012703
    Abstract: The invention relates to a process for removing one or more undesired (hydro)halocarbon compounds from a (hydro)fluoroalkene, the process comprising contacting a composition comprising the (hydro)fluoroalkene and one or more undesired (hydro)halocarbon compounds with an aluminum-containing absorbent, activated carbon, or a mixture thereof.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: April 21, 2015
    Assignee: Mexichem Amanco Holdings S.A. de C.V.
    Inventors: Andrew P Sharratt, Claire E McGuiness, John Hayes
  • Process for the preparation of 2,3,3,3,-tetrafluoropropene (R-1234yf)
    Patent number: 8697923
    Abstract: The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2X to produce 1234yf.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: April 15, 2014
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • Process for the production of chlorinated and fluorinated alkanes and alkenes in the presence of a catalyst
    Patent number: 8633340
    Abstract: 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.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: January 21, 2014
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • Process for preparing a compound of formula CFCHFCHX, wherin X is Cl or F, from 1243zf
    Patent number: 8629307
    Abstract: The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2X to produce 1234yf.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: January 14, 2014
    Assignee: Mexichem Amanco S.A. de C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • Process for the Preparation of 2,3,3,3,-Tetrafluoropropene (R-1234yf)
    Publication number: 20140012050
    Abstract: The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2X to produce 1234yf.
    Type: Application
    Filed: August 19, 2013
    Publication date: January 9, 2014
    Applicant: Mexichem Amanco Holding S.A. de C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • Process for the preparation of 2,3,3,3-tetrafluoropropene
    Patent number: 8552228
    Abstract: The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2X to produce 1234yf.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: October 8, 2013
    Assignee: Mexichem Amanco Holdings S.A. de C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • Process for the hydrogenation of pentafluoropropene
    Patent number: 8471078
    Abstract: A method of providing a blend of tetra- and/or pentafluoroalkanes comprising hydrogenating a pentafluoropropene.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 25, 2013
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Robert E. Low, Andrew P. Sharratt
  • Method for the preparation of 2 chloro 1,1,1,2,3,3,3 heptafluoropropane
    Patent number: 8367879
    Abstract: A method of catalytically converting 2,2, dichlorohexafluoropropane (HFC-216aa) into 2 chloro 1,1,1,2,3,3,3 heptafluoropropane (HFC-217ba) including the step of exposing the 2,2 dichlorohexafluoropropane to a chromium-containing catalyst comprising a metal oxide, a halogenated metal oxide or a metal oxyhalide, which chromium-containing catalyst comprises 0.01% to 5.0% by weight zinc or a compound of zinc.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: February 5, 2013
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Andrew P. Sharratt, John C. McCarthy
  • PROCESS FOR PURIFYING (HYDRO) FLUOROALKENES
    Publication number: 20120203037
    Abstract: The invention relates to a process for removing one or more undesired (hydro)halocarbon compounds from a (hydro)fluoroalkene, the process comprising contacting a composition comprising the (hydro)fluoroalkene and one or more undesired (hydro)halocarbon compounds with an aluminium-containing absorbent, activated carbon, or a mixture thereof.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 9, 2012
    Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.
    Inventors: Andrew P Sharratt, Claire E McGuiness, John Hayes
  • CATALYST AND PROCESS USING THE CATALYST
    Publication number: 20120116131
    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: September 4, 2009
    Publication date: May 10, 2012
    Applicant: Mexichem Amanco Holdings S.A. DE C.V.
    Inventor: Andrew P. Sharratt
  • CATALYST AND PROCESS USING THE CATALYST
    Publication number: 20110224466
    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: September 4, 2009
    Publication date: September 15, 2011
    Inventor: Andrew P. Sharratt
  • PROCESS FOR THE HYDROGENATION OF PENTAFLUOROPROPENE
    Publication number: 20110152586
    Abstract: A method of providing a blend of tetra- and/or pentafluoroalkanes comprising hydrogenating a pentafluoropropene.
    Type: Application
    Filed: January 23, 2009
    Publication date: June 23, 2011
    Inventors: Robert E. Low, Andrew P. Sharratt
  • PROCESS
    Publication number: 20110124930
    Abstract: The present invention provides a process for its preparation comprising (a) converting 1,1,1-trifluoro-2,3-dichloropropane (243db) to 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCI?CH2) in the presence of a first catalyst in a first reactor, (b) contacting CF3CCI?CH2 with a fluorinating agent in the presence of a second catalyst in a second reactor to produce a compound of formula CF3CFXCH3, wherein X?Cl or F, and (c) dehydrohalogenating the compound of formula CF3CFXCH3 to produce 2,3,3,3-tetrafluoropropene (1234yf).
    Type: Application
    Filed: April 9, 2009
    Publication date: May 26, 2011
    Inventors: John W. Smith, Claire Mcguiness, Andrew P. Sharratt
  • PROCESS
    Publication number: 20110118513
    Abstract: 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.
    Type: Application
    Filed: April 9, 2009
    Publication date: May 19, 2011
    Applicant: INEOS FLUOR HOLDINGS LIMITED
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt
  • PROCESS
    Publication number: 20110112340
    Abstract: The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF3CHFCH2X, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CF3CHFCH2X to produce 1234yf.
    Type: Application
    Filed: April 9, 2009
    Publication date: May 12, 2011
    Inventors: John W. Smith, Claire Mcguiness, Andrew P. Sharratt
  • Process for the Preparation of 2,3,33-Trifluoropropene
    Publication number: 20110112338
    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: May 15, 2009
    Publication date: May 12, 2011
    Applicant: MEXICHEM/ AMANCO HOLDING S.A. DE C.V.
    Inventors: John W. Smith, Claire McGuiness, Andrew P. Sharratt, Andrew M. Taylor