Patents by Inventor Robert Pype

Robert Pype 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 recovery of NO from the waste gas resulting from the production of ammonium nitrite
    Patent number: 4971776
    Abstract: A process for the complete recovery of NO from the waste gas of ammonium nitrite production, in which gases containing nitrogen oxides are absorbed in a first stage in a solution of ammonium carbonate and/or ammonium bicarbonate to form ammonium nitrite solutions and the resulting waste gas containing carbon dioxide is absorbed in a second stage in an ammoniacal, aqueous solution to form ammonium carbonate and/or ammonium bicarbonate which is returned as such to the first absorption stage, and the waste gas containing carbon dioxide is brought into contact with a sulphuric acid of medium concentration containing from 0.1-5% by weight, preferably from 0.2 to 1.5% by weight of nitric acid before the carbon dioxide is introduced into the second absorption stage.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: November 20, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Luc Van Royen, Roland Putseys, Willy Van Herck, Domien Sluyts, Robert Pype
  • Process for the removal of nitrogen oxide from flue gases
    Patent number: 4944929
    Abstract: Nitrogen oxide is removed from flue gases of combustion plants or reaction gases by a process wherein the nitrogen oxide contained in the stream of gas is converted into a stochiometric composition of N.sub.2 O.sub.3 and removed from the gas stream.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: July 31, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Luc Van Royen, Roland Putseys, Willy Van Herck, Domien Sluyts, Robert Pype, Karl Brandle