Patents by Inventor Luiz Wanderley Bratfisch Pace

Luiz Wanderley Bratfisch Pace 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).

  • Publication number: 20240150961
    Abstract: The disclosure provides methods and compositions for reducing the viscosity of black liquor. Also provided are methods of inhibiting deposition of scale and methods of processing black liquor. In some embodiments, the compositions include a carboxylate-containing polymer and an inorganic salt. In some embodiments, the compositions include a carboxylate-containing polymer, an inorganic salt, and a surfactant.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Applicant: ECOLAB USA Inc.
    Inventors: Luiz Wanderley Bratfisch PACE, Prasad Yogendra DUGGIRALA
  • Patent number: 11905655
    Abstract: The disclosure provides methods and compositions for reducing the viscosity of black liquor. Also provided are methods of inhibiting deposition of scale and methods of processing black liquor. In some embodiments, the compositions include a carboxylate-containing polymer and an inorganic salt. In some embodiments, the compositions include a carboxylate-containing polymer, an inorganic salt, and a surfactant.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 20, 2024
    Assignee: ECOLAB USA Inc.
    Inventors: Luiz Wanderley Bratfisch Pace, Prasad Yogendra Duggirala
  • Patent number: 10988899
    Abstract: Methods and compositions useful for improving drainage in a fluff pulp drying process are provided. The methods and compositions comprise alkyl ether sulfate and ethylene oxide/propylene oxide copolymer. In particular, the methods and compositions can improve drainage of fluff pulp in fluff pulp drying processes.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 27, 2021
    Assignee: ECOLAB USA INC.
    Inventors: Luiz Wanderley Bratfisch Pace, Gary Samuel Furman, Jr., André Messias Krell Pedro, Kraig R. Kent
  • Publication number: 20210062421
    Abstract: The disclosure provides methods and compositions for reducing the viscosity of black liquor. Also provided are methods of inhibiting deposition of scale and methods of processing black liquor. In some embodiments, the compositions include a carboxylate-containing polymer and an inorganic salt. In some embodiments, the compositions include a carboxylate-containing polymer, an inorganic salt, and a surfactant.
    Type: Application
    Filed: July 29, 2020
    Publication date: March 4, 2021
    Applicant: ECOLAB USA INC.
    Inventors: Luiz Wanderley Bratfisch Pace, Prasad Yogendra Duggirala
  • Publication number: 20180258591
    Abstract: Methods and compositions useful for improving drainage in a fluff pulp drying process are provided. The methods and compositions comprise alkyl ether sulfate and ethylene oxide/propylene oxide copolymer. In particular, the methods and compositions can improve drainage of fluff pulp in fluff pulp drying processes.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Applicant: Ecolab USA Inc.
    Inventors: Luiz Wanderley Bratfisch Pace, Gary Samuel Furman, JR., André Messias Krell Pedro, Kraig R. Kent
  • Patent number: 10000393
    Abstract: Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 19, 2018
    Assignee: ECOLAB USA INC.
    Inventors: Prasad Y. Duggirala, Weiguo Cheng, Darlington Mlambo, Tarun Kumar Bera, Luiz Wanderley Bratfisch Pace
  • Patent number: 9683935
    Abstract: The invention is directed towards methods and compositions for identifying the presence of surfactants in water. The invention is quite superior over the prior art because it can form a colorful complex in half the time, avoid the need for difficult separation steps, use a safer solvent, and avoid the formation of messy foam. The invention involves adding to the water a cobalt thiocyanate reagent, pre-prepared from a cobalt salt and a thiocyanate salt, which forms a colorful complex with the surfactant. Chloroform is then added to the water. The cobalt reagent causes the virtually all of the surfactant to form a colored complex which rapidly migrates into the chloroform and prevents the surfactant from foaming. Once in the chloroform, a UV-vis spectrometer can easily and precisely identify the type and amount of surfactant that was in the water.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: June 20, 2017
    Assignee: Nalco Company
    Inventors: Viviane Pacheco e Silva, Luiz Wanderley Bratfisch Pace, Edmir Carone, Jr.
  • Publication number: 20160200600
    Abstract: Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 14, 2016
    Applicant: Ecolab USA Inc.
    Inventors: Prasad Y. Duggirala, Weiguo Cheng, Darlington Mlambo, Tarun Kumar Bera, Luiz Wanderley Bratfisch Pace
  • Publication number: 20130337568
    Abstract: The invention is directed towards methods and compositions for identifying the presence of surfactants in water. The invention is quite superior over the prior art because it can form a colorful complex in half the time, avoid the need for difficult separation steps, use a safer solvent and avoid the formation of messy foam. The invention involves adding to the water a cobalt thiocyanate reagent, pre-prepared from a cobalt salt and a thiocyanate salt, which forms a colorful complex with the surfactant. Chloroform is then added to the water. The cobalt reagent causes the virtually all of the surfactant to form a colored complex which rapidly migrates into the chloroform and prevents the surfactant from foaming. Once in the chloroform, a UV-vis spectrometer can easily and precisely identify the type and amount of surfactant that was in the water.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Inventors: Viviane Pacheco e Silva, Luiz Wanderley Bratfisch Pace, Edmir Carone, JR.