Patents Represented by Attorney Maria Tungol

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  • Coproduction of butanediol and tetrahydrofuran and their subsequent separation from the reaction product mixture
    Patent number: 4656297
    Abstract: Mixtures of tetrahydrofuran and 1,4-butanediol at a predetermined mole ratio are produced by the hydrogenation of dimethylsuccinate in the presence of a copper chromite catalyst wherein said ratio is controlled by conducting the hydrogenation within a particular temperature range. Methanol is added to the ester feed to increase conversion and reduce transesterification. Tetrahydrofuran and 1,4-butanediol are separated from a mixture which also contains water and methanol by a series of distillations including a superatmospheric distillation.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: April 7, 1987
    Assignee: Amoco Corporation
    Inventors: Jay K. Kouba, Robert B. Snyder
  • Ozone decomposition
    Patent number: 4619821
    Abstract: A process to decompose ozone comprises passing an ozone-containing gas with a catalyst comprised of an AMS-1B crystalline borosilicate catalyst.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: October 28, 1986
    Assignee: Amoco Corporation
    Inventor: Stephen R. Ely