Patents by Inventor Tatiana Vieira GALVÃO

Tatiana Vieira GALVÃO 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).

  • Lactic acid direct synthesis process
    Patent number: 8962882
    Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: February 24, 2015
    Assignees: Petroleo Brasileiro S.A.—Petrobras, Int—Instituto Nacional de Tecnologia
    Inventors: Marco André Fraga, Tatiana Vieira Galvão, Simone Maria De Rezende, Andrea Maria Duarte De Farias, Alexandre Barros Gaspar, Marlito Gomes Junior, Carlos René Klotz Rabello, Bernardo Galvão Siqueira, Raphael Bezerra De Menezes
  • LACTIC ACID DIRECT SYNTHESIS PROCESS
    Publication number: 20140155651
    Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.
    Type: Application
    Filed: November 22, 2013
    Publication date: June 5, 2014
    Applicants: INT - INSTITUTO NACIONAL DE TECNOLOGIA, PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marco André FRAGA, Tatiana Vieira GALVÃO, Simone Maria DE REZENDE, Andrea Maria Duarte DE FARIAS, Alexandre Barros GASPAR, Marlito GOMES JUNIOR, Carlos Renê Klotz RABELLO, Bernardo Galvão SIQUEIRA, Raphael Bezerra DE MENEZES