Patents by Inventor Hamilton Porto Pimenta

Hamilton Porto Pimenta 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).

  • Patent number: 9175364
    Abstract: An ore fine agglomerate to be used in a sintering process is disclosed, wherein the ore fine agglomerate is formed by a mixture of ore fine particles and an agglomerating agent, and wherein the particles have diameters between 0.01 mm and 8.0 mm. A production process of ore fines agglomerate is disclosed comprising the steps of using ore fine particles with a granulometry lower than 0.150 mm, mixing the ore fine particles with an agglomerating agent in a ratio of 0.5 to 5.0% by mass of sodium silicate, forming wet particles with diameters between 0.01 mm and 8.0 mm with an addition of water, and drying the wet particles at a temperature varying from 100° C. and 150° C. to form dry particles that are resistant to mechanical efforts and the elements.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 3, 2015
    Assignee: VALE S.A.
    Inventors: Hamilton Porto Pimenta, Flavio De Castro Dutra
  • Patent number: 9096914
    Abstract: The present invention describes an advantageous and effective streamlined process for the production of iron ore pellets, the green pellets replacing the burnt pellets for covering the metallic surface in “travelling grate” furnace during the burning step, the process comprising at least some or all of the steps of grinding the iron ore; filtering the crushed iron ore; mixing the filtered iron ore with at least one binder; pelletizing the mixture; drying the green pellets; transferring the pellets to the side and bottom grids of a “travelling grate” furnace equipment and screening the burnt iron ore pellets. An optimized process for the production of iron ore pellets is provided that is innovative, efficient and economical when compared to currently known processes.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: August 4, 2015
    Assignee: VALE S.A.
    Inventors: Hamilton Porto Pimenta, Marcus Eduardo Emrich Botelho
  • Patent number: 8999032
    Abstract: An application of carbon nanotubes on agglomerates of ore fines to increase the mechanical strength is provided. A process for the preparation of ore agglomerates having enhanced mechanical strength by the application of the carbon nanotubes is also provided.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 7, 2015
    Assignee: Vale S.A.
    Inventors: Flavio de Castro Dutra, Hamilton Porto Pimenta, Valdirene Gonzaga De Resende, Aloísio Antônio de Melo Borges
  • Publication number: 20140020511
    Abstract: The present invention describes an advantageous and effective streamlined process for the production of iron ore pellets, the green pellets replacing the burnt pellets for covering the metallic surface in “travelling grate” furnace during the burning step, the process comprising at least some or all of the steps of grinding the iron ore; filtering the crushed iron ore; mixing the filtered iron ore with at least one binder; pelletizing the mixture; drying the green pellets; transferring the pellets to the side and bottom grids of a “travelling grate” furnace equipment and screening the burnt iron ore pellets. An optimized process for the production of iron ore pellets is provided that is innovative, efficient and economical when compared to currently known processes.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 23, 2014
    Applicant: VALE S/A
    Inventors: Hamilton Porto PIMENTA, Marcus Eduardo Emrich BOTELHO
  • Publication number: 20110232420
    Abstract: An ore fine agglomerate to be used in a sintering process is disclosed, wherein the ore fine agglomerate is formed by a mixture of ore fine particles and an agglomerating agent, and wherein the particles have diameters between 0.01 mm and 8.0 mm. A production process of ore fines agglomerate is disclosed comprising the steps of using ore fine particles with a granulometry lower than 0.150 mm, mixing the ore fine particles with an agglomerating agent in a ratio of 0.5 to 5.0% by mass of sodium silicate, forming wet particles with diameters between 0.01 mm and 8.0 mm with an addition of water, and drying the wet particles at a temperature varying from 100° C. and 150° C. to form dry particles that are resistant to mechanical efforts and the elements.
    Type: Application
    Filed: November 17, 2010
    Publication date: September 29, 2011
    Applicant: VALE S.A.
    Inventors: Hamilton Porto Pimenta, Flavio De Castro Dutra