Patents by Inventor Gerhard Munster

Gerhard Munster 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 manufacture of phosphorus pentachloride
    Patent number: 4265865
    Abstract: Phosphorus pentachloride is manufactured from chlorine and phosphorus trichloride in the presence of molten phosphorus pentachloride. The process can be carried out such that the reaction product flows out from the reactor continuously as a melt. Reaction pressures of more than 1 bar and temperatures of from 160.degree. to 250.degree. C. are preferred.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: May 5, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Munster, Gerhard Riess, Jurgen Russow
  • Process for the manufacture of ammonium sulfamate
    Patent number: 4261963
    Abstract: A process for the manufacture of ammonium sulfamate by introducing under pressure ammonia and sulfur trioxide into a reactor containing a melt which mainly consists of ammonium sulfamate and ammonium imidodisulfonate, while maintaining a molar ratio of NH.sub.3 /SO.sub.3 of from 1.5 to 1 to 2.0:1, which comprises introducing sulfur trioxide into the gas phase above the melt.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: April 14, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Gerhard Munster
  • Process for the preparation of nitrous oxide
    Patent number: 4203959
    Abstract: When adding simultaneously nitrite and sulfite in a molar ratio of from 1:1 to 1:1.5 to an acid aqueous solution having a pH value of from 0 to 3, nitrous oxide is formed. The process is carried out at a temperature in the range of from 0.degree. to 100.degree. C. Instead of sulfite there may also be used SO.sub.2. The gaseous nitrous oxide formed can be freed from impurities (SO.sub.2, NO) by washing with aqueous alkali metal hydroxide solution and alkaline permanganate solution.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: May 20, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Gerhard Munster