Patents by Inventor Karl R. Krause

Karl R. Krause 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).

  • Processes for reducing the amount of monofluoroacetate in hydrofluoroolefin production
    Patent number: 8853472
    Abstract: A process is disclosed for reducing the amount of monofluoroacetate. The process involves (a) contacting a hydrofluorocarbon with a reactant basic aqueous solution to produce an organic phase solution containing a hydrofluoroolefin and an aqueous phase solution containing a monofluoroacetate; and (b) heating the aqueous phase solution to an effective temperature to reduce the amount of monofluoroacetate in the aqueous phase solution, wherein fluoride concentration in the aqueous phase solution is substantially high. Another process is disclosed for reducing the amount of monofluoroacetate.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 7, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Patricia Cheung, Karl R. Krause, Michael A. Sisk
  • PROCESSES FOR REDUCING THE AMOUNT OF MONOFLUOROACETATE IN HYDROFLUOROOLEFIN PRODUCTION
    Publication number: 20120046505
    Abstract: A process is disclosed for reducing the amount of monofluoroacetate. The process involves (a) contacting a hydrofluorocarbon with a reactant basic aqueous solution to produce an organic phase solution containing a hydrofluoroolefin and an aqueous phase solution containing a monofluoroacetate; and (b) heating the aqueous phase solution to an effective temperature to reduce the amount of monofluoroacetate in the aqueous phase solution, wherein fluoride concentration in the aqueous phase solution is substantially high. Another process is disclosed for reducing the amount of monofluoroacetate.
    Type: Application
    Filed: May 7, 2010
    Publication date: February 23, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mario Joseph Nappa, Patricia Cheung, Karl R. Krause, Michael A. Sisk
  • Apparatus and process for the preparation of hydrogen cyanide
    Patent number: 5529669
    Abstract: An apparatus and process for production of HCN from ammonia and a hydrocarbon gas by the use of microwave energy using a single mode microwave reactor.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 25, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Theodore A. Koch, Karl R. Krause, Mehrdad Mehdizadeh
  • Apparatus and process for the preparation of hydrogen cyanide
    Patent number: 5470541
    Abstract: An apparatus and process for production of HCN from ammonia and a hydrocarbon gas by the use of microwave energy using a single mode microwave reactor.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: November 28, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Theodore A. Koch, Karl R. Krause, Mehrdad Mehdizadeh