Patents by Inventor CLARE MARY SKAE

CLARE MARY SKAE 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-trifluoropropene
    Patent number: 11767277
    Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a) fluorinating CCl3CH2CH2Cl (250fb) to produce a reaction product comprising CF3CH2CH2Cl (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: Grant
    Filed: April 30, 2021
    Date of Patent: September 26, 2023
    Assignee: Mexichem Fluor S.A. de C.V.
    Inventors: Emma Jayne Hodgson, Clare Mary Skae, Gary Lloyd, Claire Elizabeth McGuinness, Clive Robert Giddis, James Henry Murray
  • PROCESS FOR THE PREPARATION OF 3,3,3-TRIFLUOROPROPENE
    Publication number: 20220033330
    Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a) fluorinating CCl3CH2CH2Cl (250fb) to produce a reaction product comprising CF3CH2CH2Cl (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: April 30, 2021
    Publication date: February 3, 2022
    Applicant: Mexichem Fluor S.A. de C.V.
    Inventors: Emma Jayne HODGSON, Clare Mary Skae, Gary Lloyd, Claire Elizabeth McGuinness, Clive Robert Giddis, James Henry Murray
  • Process for the preparation of 3,3,3-trifluoropropene
    Patent number: 11021423
    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 presence 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: Grant
    Filed: April 30, 2020
    Date of Patent: June 1, 2021
    Assignee: Mexichem Fluor S.A. de C.V.
    Inventors: Clare Mary Skae, Gary Lloyd
  • PROCESS FOR THE PREPARATION OF 3,3,3-TRIFLUOROPROPENE
    Publication number: 20200255360
    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 presence 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: April 30, 2020
    Publication date: August 13, 2020
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: CLARE MARY SKAE, GARY LLOYD
  • Process for the preparation of 3,3,3-trifluoropropene
    Patent number: 10689316
    Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a)fluorinating CCl3CH2CH2CI (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 presence 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: Grant
    Filed: July 14, 2016
    Date of Patent: June 23, 2020
    Assignee: MEXICAN FLUOR S.A. DE C.V.
    Inventors: Emma Jayne Hodgson, Claire Elizabeth McGuinness, Clive Robert Giddis, James Henry Murray, Clare Mary Skae, Gary Lloyd
  • 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