Patents by Inventor Gunter Strehlke

Gunter Strehlke 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 continuous production of lower aliphatic alcohols
    Patent number: 4831197
    Abstract: An improved process for the production of lower aliphatic alcohols by the catalytic hydration of a lower aliphatic olefin in the presence of a strongly acidic cation exchange resin catalyst in a fixed bed reactor and in which a cationic surfactant has been added to the process water is provided.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: May 16, 1989
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Friedrich Henn, Wilhelm Neier, Gunter Strehlke, Werner Webers
  • Process for the thermal dimerization of butadiene
    Patent number: 4396787
    Abstract: Formation of undesirable popcorn polymer on the walls of a reaction vessel during thermal dimerization of butadiene is prevented by coating the walls with a falling film of aqueous sodium nitrite solution.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 2, 1983
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Karl-Heinz Gluzek, Olaf Petersen, Wilhelm Neier, Gunter Strehlke, Karl-Heinz Heinemann
  • Extractive distillation of acetone
    Patent number: 4113780
    Abstract: Acetone containing less than 0.2 weight percent water is produced in an extractive distillation of acetone containing appreciable quantities of water by utilizing isopropyl alcohol as the extracting agent.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: September 12, 1978
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Gunter Strehlke, Gunther Osterburg
  • Process for the production of lower aliphatic alcohols
    Patent number: 3979465
    Abstract: Process for the production of an aliphatic alcohol comprising reacting an olefin having from 2 to 4 carbon atoms with sulfuric acid to form an ester reaction product, diluting said product with water and steam stripping to remove a lower aliphatic alcohol overhead leaving a dilute sulfuric acid solution, concentrating said dilute sulfuric acid solution in a first stage indirect evaporator, recycling the steam generated in this first stage evaporator to the steam stripping step, further concentrating the sulfuric acid solution in a second stage direct heat evaporator to form a concentrated sulfuric acid solution and recycling said concentrated sulfuric acid solution for reaction with fresh olefin feed.
    Type: Grant
    Filed: January 7, 1974
    Date of Patent: September 7, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Gunter Strehlke, Gunther Osterburg