Patents by Inventor Marcel Sergent

Marcel Sergent 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).

  • Ternary molybdenum chalcogenide oxychlorination catalysts
    Patent number: 5157174
    Abstract: Hydrocarbons are oxychlorinated by reaction with gaseous HCl and an oxygen-containing gas, in the presence of a catalytically effective amount of a ternary copper/molybdenum chalcogenide having the formula:Cu.sub.x Mo.sub.6 Ch.sub.8wherein x is a number ranging up to 4 and Ch is sulfur, selenium or tellurium, advantageously, in the added presence of a known oxychlorination catalyst and, optionally, a proportion of inert particulate solids; the ternary molybdenum chalcogenides of the formula M.sub.x Mo.sub.6 S.sub.8 are also prepared, wherein M is a metal, advantageously by the hydrogen gas reduction of intimate admixture of MoS.sub.2 and metal M, or precursors thereof.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: October 20, 1992
    Assignee: Atochem
    Inventors: Murielle Rabiller-Baudry, Annick Faure, Jean Lesparre, Marcel Sergent, Roger Chevrel