Patents by Inventor Eric Fache

Eric Fache 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).

  • Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid
    Patent number: 5756837
    Abstract: A process for recycling a catalyst containing cobalt including treating a reaction mixture obtained during the direct oxidation of cyclohexane to adipic acid by extracting at least some of the glutaric acid and succinic acid which are formed in the reaction.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: May 26, 1998
    Assignee: Rhone-Poulenc Fiber & Resin Intermediates
    Inventors: Michel Costantini, Eric Fache, Daniel Nivert
  • Oxidation of aromatic compounds substituted by oxidizable alkyl moieties
    Patent number: 5354919
    Abstract: Aromatic compounds bearing oxidizable alkyl substituents, e.g., alkoxylated and/or hydroxylated such substrates, notably the phenolics/cresols, are selectively oxidized, e.g., into hydroxybenzaldehydes, by reacting same with appropriate oxidizing agents, in an aqueous reaction medium, in the presence of a catalytically effective amount of a solid, palladium-containing oxidation catalyst (optionally containing a cocatalytically effective amount of tin, germanium, tellurium and/or copper).
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: October 11, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Costantini, Dominique Laucher, Eric Fache