Patents by Inventor Jose Andre CAVALCANTI DA SILVA

Jose Andre CAVALCANTI DA SILVA 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).

  • MULTIFUNCTIONAL HYBRID CATALYST WITH NIOBIUM AND TIN SUPPORTED ON HEXAGONAL MESOPOROUS SILICA, SYNTHESIS PROCESS OF SAID CATALYST AND PROCESS FOR OBTAINING BIODEGRADABLE LUBRICATING BASE OILS USING SAID CATALYST
    Publication number: 20240207822
    Abstract: The present invention relates to a multifunctional hybrid catalyst with niobium and tin supported on hexagonal mesoporous silicas (HMSNb—Sn), synthesis process thereof through isomorphic substitutions and the process for obtaining biodegradable lubricating base oils using said catalyst.
    Type: Application
    Filed: December 19, 2023
    Publication date: June 27, 2024
    Inventors: Solange Assunção QUINTELLA, Jose Andre Cavalcanti Da Silva, Francisco Murilo Tavares De Luna, Charles Lima Bessa Assuncao, Maria Thiciane Almeida Costa, Celio Loreiro Cavalcante, JR., Maria Imaculada G. Silveira Teixeira
  • Process for producing esters and biolubricants, catalysed by fermented solid
    Patent number: 11866761
    Abstract: The present invention relates to a process for producing esters comprising reaction of methyl biodiesel or free fatty acids with a polyhydroxylated alcohol, in the presence of a biocatalyst, which is a fermented solid containing lipases of Rhizomucor miehei produced by culturing the microorganism on agricultural waste by solid state fermentation.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 9, 2024
    Assignees: PETRÓLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ
    Inventors: Jose Andre Cavalcanti Da Silva, Guilherme Brandão Guerra, Denise Maria Guimarães Freire, Erika Cristina Gonçalves Aguieiras, Elisa D'avila Cavalcanti Oliveira, Jaqueline Greco Duarte, Kassia Leone Ignacio, Valéria Ferreira Soares, Priscila Rufino Da Silva
  • Method for producing biolubricant from vegetable oil, and biolubricant
    Patent number: 11492567
    Abstract: The present invention describes a process for obtaining a biolubricant from vegetable oil, which comprises the steps of (a) esterification reaction of the product of vegetable oil hydrolysis using a branched aliphatic alcohol; (b) epoxidation reaction of the esters obtained in step (a); and (c) nucleophilic substitution reaction of the epoxidated esters obtained in step (b) using a branched aliphatic alcohol. The present invention also describes a biolubricant obtained from the process. More specifically, a biolubricant is described that is produced from a ricinoleic fatty acid, whose formula is illustrated in FIG. 1 of the present invention, and where R1 is a hydroxyl or it is from the formula R3COO?, with R3 being an alkyl radical C1-C3, preferably a methyl radical; and R2 consists of a straight chain of hydrocarbons C4-C8 and a branched chain of hydrocarbons C1-C3.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: November 8, 2022
    Assignees: PETROLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DO CEARA—UFC
    Inventors: Stephanie De Oliveira Souza, Rosana Maria Alves Saboya, Jose Andre Cavalcanti Da Silva, Italo Castro Rios, Francisco Murilo Tavares De Luna, Fatima Andrea Lima Girao, Celio Loureiro Cavalcante, Jr.
  • METHOD FOR PRODUCING BIOLUBRICANT FROM VEGETABLE OIL, AND BIOLUBRICANT
    Publication number: 20210230495
    Abstract: The present invention describes a process for obtaining a biolubricant from vegetable oil, which comprises the steps of (a) esterification reaction of the product of vegetable oil hydrolysis using a branched aliphatic alcohol; (b) epoxidation reaction of the esters obtained in step (a); and (c) nucleophilic substitution reaction of the epoxidated esters obtained in step (b) using a branched aliphatic alcohol. The present invention also describes a biolubricant obtained from the process. More specifically, a biolubricant is described that is produced from a ricinoleic fatty acid, whose formula is illustrated in FIG. 1 of the present invention, and where R1 is a hydroxyl or it is from the formula R3COO?, with R3 being an alkyl radical C1-C3, preferably a methyl radical; and R2 consists of a straight chain of hydrocarbons C4-C8 and a branched chain of hydrocarbons C1-C3.
    Type: Application
    Filed: June 5, 2019
    Publication date: July 29, 2021
    Inventors: Stephanie DE OLIVEIRA SOUZA, Rosana Maria ALVES SABOYA, Jose Andre CAVALCANTI DA SILVA, Italo CASTRO RIOS, Francisco Murilo TAVARES DE LUNA, Fatima Andrea LIMA GIRAO, Celio LOUREIRO CAVALCANTE JUNIOR
  • PROCESS FOR PRODUCING ESTERS AND BIOLUBRICANTS, CATALYSED BY FERMENTED SOLID
    Publication number: 20210189442
    Abstract: The present invention relates to a process for producing esters comprising reaction of methyl biodiesel or free fatty acids with a polyhydroxylated alcohol, in the presence of a biocatalyst, which is a fermented solid containing lipases of Rhizomucor miehei produced by culturing the microorganism on agricultural waste by solid state fermentation.
    Type: Application
    Filed: October 11, 2018
    Publication date: June 24, 2021
    Inventors: Jose Andre CAVALCANTI DA SILVA, Guilherme Brandão GUERRA, Denise Maria GUIMARÃES FREIRE, Erika Cristina GONÇALVES AGUIEIRAS, Elisa D'avila CAVALCANTI OLIVEIRA, Jaqueline GRECO DUARTE, Kassia Leone IGNACIO, Valéria Ferreira SOARES, Priscila Rufino DA SILVA