Patents by Inventor Deresh Ramjugernath

Deresh Ramjugernath 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).

  • Production of hexafluoropropylene oxide
    Patent number: 9073883
    Abstract: A process for the production of HFPO includes introducing a feedstock comprising HFP and molecular oxygen into a heated reaction zone of a reactor. The reaction zone is at a reaction temperature Tr, where 180° C.?Tr?230° C. The feedstock is allowed to react, by epoxidation of the HFP, to produce HFPO. The HFPO is withdrawn from the reaction zone. The introduction of the feedstock into the reaction zone and the withdrawal of the product from the reaction zone is continuous.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 7, 2015
    Assignee: UNIVERSITY OF KWAZULU-NATAL
    Inventors: David Lokhat, Maciej Starzak, Deresh Ramjugernath
  • PRODUCTION OF HEXAFLUOROPROPYLENE OXIDE
    Publication number: 20150073160
    Abstract: A process for the production of HFPO includes introducing a feedstock comprising HFP and molecular oxygen into a heated reaction zone of a reactor. The reaction zone is at a reaction temperature Tr, where 180° C.?Tr<230° C. The feedstock is allowed to react, by epoxidation of the HFP, to produce HFPO. The HFPO is withdrawn from the reaction zone. The introduction of the feedstock into the reaction zone and the withdrawal of the product from the reaction zone is continuous.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 12, 2015
    Inventors: David Lokhat, Maciej Starzak, Deresh Ramjugernath
  • Recovery of components making up a liquid mixture
    Patent number: 8299280
    Abstract: A process for recovering hexafluoropropylene and hexafluoropropylene oxide from a liquid mixture of these components is provided. The process includes, in a stripping stage, contacting the mixture with a gaseous stripping agent, thereby to strip hexafluoropropylene from the mixture. A gaseous product comprising hexafluoropropylene and gaseous stripping agent is withdrawn from the stripping stage, as is a liquid product comprising hexafluoropropylene oxide.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: October 30, 2012
    Assignee: University of Kwazulu-Natal
    Inventors: Deresh Ramjugernath, Paramespri Naidoo, Clinton Shalendra Subramoney, Michael Wayne Nelson
  • RECOVERY OF COMPONENTS MAKING UP A LIQUID MIXTURE
    Publication number: 20100105932
    Abstract: A process for recovering hexafluoropropylene and hexafluoropropylene oxide from a liquid mixture of these components is provided. The process includes, in a stripping stage, contacting the mixture with a gaseous stripping agent, thereby to strip hexafluoropropylene from the mixture. A gaseous product comprising hexafluoropropylene and gaseous stripping agent is withdrawn from the stripping stage, as is a liquid product comprising hexafluoropropylene oxide.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicant: UNIVERSITY OF KWAZULU-NATAL
    Inventors: Deresh Ramjugernath, Paramespri Naidoo, Clinton Shalendra Subramoney, Michael Wayne Nelson