Patents by Inventor Armand Mamourian

Armand Mamourian 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 purification of wet phosphoric acid
    Patent number: 4315899
    Abstract: Raw wet phosphoric acid which has been extracted from the solvent and regenerated with water according to the process of U.S. Pat. No. 3,607,029 is subsequently subjected to treatment with steam or a hot gas to afford concentrated phosphoric acid with a F/P.sub.2 O.sub.5 ratio of less than 10 ppm. The acid obtained is suitable for use in the food industry.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: February 16, 1982
    Assignee: Rhone-Poulenc Industries
    Inventors: Armand Mamourian, Francois Bousquet
  • 6107845x
    Patent number: 4285921
    Abstract: The invention relates to the purification of wet phosphoric acid in which raw, wet acid extracted by means of a solvent, desulfated by means of a calcium ion aqueous solution and regenerated by means of water, is then treated with water vapor or hot gases by which a concentrated solution of phosphoric acid with a ponderal ratio F/P.sub.2 O.sub.5 less than 10 ppm is obtained.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: August 25, 1981
    Assignee: Rhone-Poulenc Industries
    Inventors: Armand Mamourian, Francois Bousquet, Jacques Helgorsky