Patents by Inventor Gilles Pasquier

Gilles Pasquier 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 and solvent for extraction of the chromates present in an aqueous solution
    Patent number: 4446026
    Abstract: The invention relates to a process and a solvent for extraction of the chromates present in an aqueous solution. According to the invention, the aqueous phase is brought into contact with an organic phase comprising 2 to 10% by volume of a solvent selected from the group of tertiary or quaternary amines and 15 to 40% of a solvent selected from the group of esters of phosphoric acid in a diluent based on petroleum hydrocarbons. The invention is applicable to the production of concentrated solutions of chromates easily recyclable from an extraction of the chromates contained in an industrial solution.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: May 1, 1984
    Assignee: Krebs & Cie S.A.
    Inventors: Didier Beutier, Claude Palvadeau, Gilles Pasquier, March Dietrich