Patents by Inventor Claire REES

Claire REES 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 PRODUCTION OF 1,1-DIFLUOROETHANE
    Publication number: 20240059635
    Abstract: A process for the production of 1,1-difluoroethane by the catalytic fluorination, in the vapour phase, of a composition comprising vinyl chloride with hydrogen fluoride, wherein the vinyl chloride is contacted with hydrogen fluoride, at temperatures between 100 and 500° C., in the presence of a catalyst comprising a one or more of chromia, alumina, carbon.
    Type: Application
    Filed: January 19, 2022
    Publication date: February 22, 2024
    Inventors: Andrew SHARRATT, Claire REES
  • METHOD
    Publication number: 20220062866
    Abstract: A method for activating a chromia-based catalyst for fluorination and/or hydrofluorination comprises the steps of: a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.; b) treating the catalyst with a composition comprising HF at a temperature of from 100° C. to about 500° C.; c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C.
    Type: Application
    Filed: January 16, 2020
    Publication date: March 3, 2022
    Inventors: Andrew Sharratt, Claire Rees
  • PROCESS FOR PURIFYING (HYDRO)HALOCARBON COMPOSITIONS
    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
  • Process for purifying (hydro)halocarbon compositions
    Patent number: 9828316
    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: Grant
    Filed: April 23, 2014
    Date of Patent: November 28, 2017
    Assignee: MEXICHEM AMANCO HOLDINGS S.A. de C.V.
    Inventors: Andrew Sharratt, John Hayes, Claire Rees
  • PROCESS FOR PURIFYING (HYDRO)HALOCARBON COMPOSITIONS
    Publication number: 20160060192
    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: April 23, 2014
    Publication date: March 3, 2016
    Applicant: MEXICHEM AMANDO HOLDING S.A. DE C.V.
    Inventors: Andrew SHARRATT, John HAYES, Claire REES