Patents by Inventor Emma J. Hodgson

Emma J. Hodgson 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 3,3,3-TRIFLUOPROPENE
    Publication number: 20190169098
    Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a)fluorinating CCI3CH2CH2CI (250fb) to produce a reaction product comprising CF3CH2CH2CI (253fb) in the liquid phase in a first reactor, using HF as the fluorinating agent; and (b)(i) dehydrohalogenating 253fb to produce 1243zf in the vapour phase in the present of a catalyst in a second reactor; or (b)(ii) dehydrohalogenating 253fb to produce 1243zf in a second reactor, wherein the reaction product comprising 253fb produced in step (a) has subjected to one or more purification steps before step (b). The present invention also provides an azeotropic or near-azeotropic composition comprising HF and 253fb.
    Type: Application
    Filed: July 14, 2016
    Publication date: June 6, 2019
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: EMMA J HODGSON, CLAIRE ELIZABETH McGUINNESS, CLIVE ROBERT GIDDIS, JAMES HENRY MURRAY, CLARE MARY SKAE, GARY LLOYD
  • PROCESS FOR DRYING HYDRO(CHLORO)FLUOROOLEFINS
    Publication number: 20180215691
    Abstract: The present invention provides a method for purifying a fluid comprising a first drying stage which comprises contacting a first fluid stream comprising one or more hydro(chloro)fluoroolefins and water with a source of sulphuric acid to produce a first treated fluid stream comprising the hydro(chloro)fluoroolefin(s) and a first spent sulphuric acid stream, wherein the first treated fluid stream comprises a lower concentration of water than the first fluid stream.
    Type: Application
    Filed: July 14, 2016
    Publication date: August 2, 2018
    Applicants: MEXICHEM FLUOR S.A. DE C.V., MEXICHEM UK LIMITED
    Inventors: EMMA J HODGSON, JAMES HENRY MURRAY, GARY LLOYD
  • Process for the preparation of 1,1,1-trifluoropropane
    Patent number: 9249072
    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: Grant
    Filed: July 18, 2012
    Date of Patent: February 2, 2016
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventors: Andrew P. Sharratt, Claire E. McGuinness, Emma J. Hodgson