Patents by Inventor Michael A. Quinlan

Michael A. Quinlan 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).

  • Selective perovskite catalysts to oxidize ammonia to nitric oxide
    Patent number: 4812300
    Abstract: The present invention relates to perovskite mixed metal catalysts useful for the selective oxidation of ammonia to nitric oxide. In one aspect, the invention relates to a perovskite mixed metal catalyst of the general formula: ABO.sub.3 wherein:A is selected from alkali, alkaline earth, rare earth, lanthanide activide metals or mixtures thereof; andB is selected from an element or a combination of elements selected from Groups IB, IVB, VB, VIB, VIIB or VIII of the Periodic Table. Preferably, the perovskite phase for each catalyst has an equilibrium oxygen partial pressure at 1000.degree. C. of at least (about) 10.sup.-15 bar. A preferred embodiment is a catalyst wherein A is selected from lanthanum, strontium or mixtures thereof, and B is selected from cobalt, nickel, copper manganese or mixtures thereof. A method of preparing the selective perovskite catalyst is disclosed as are details of the process for the oxidation of ammonia to nitric oxide.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: March 14, 1989
    Assignee: SRI-International
    Inventors: Michael A. Quinlan, Ramamurthy Ramanathan, Henry Wise