Patents Assigned to Startec Iron LLC
  • Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section
    Patent number: 6800113
    Abstract: The present invention refers to an equipment for feeding and distributing charge and fuel in furnaces of rectangular cross section, comprising movable feeding tubes to distribute along the longitudinal section and the cross section of the furnace, both a charge comprised of self-reducing agglomerates, ore, scrap or any other metallic material, and solid fuels of any kind.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: October 5, 2004
    Assignee: Startec Iron LLC
    Inventors: Marcos de Albuquerque Contrucci, Pedro Henrique Carpinetti Costa
  • Method and apparatus for using a pre-jel for producing self-reducing agglomerates
    Patent number: 6786949
    Abstract: Self-reducing agglomerates are provided for use in the production of metal. The agglomerates comprise a mixture of iron oxide containing particles and particles of a reducing agent bonded by use of a pre-gel. The agglomerates are produced by a method and apparatus that provides for mixing and curing thereof. The agglomerates may then be used for reduction thereof for the production of iron.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 7, 2004
    Assignee: Startec Iron, LLC
    Inventor: Edmar Saul Marcheze
  • Modular furnace
    Patent number: 6692688
    Abstract: A modular apparatus for the production of molten metal by self reduction of agglomerates of metal oxide or of prereduced metal, which may be iron. The apparatus includes a plurality of connected cells of identical size and construction. Each apparatus is connected to equipment for supplying the agglomerates for reduction or melting and refining within a reduction chamber or melting chamber, respectively, of each cell.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: February 17, 2004
    Assignee: Startec Iron, LLC
    Inventors: Marcos de Albuquerque Contrucci, Pedro Henrique Carpinetti Costa, Edmar Saul Marcheze
  • Method and apparatus for curing self-reducing agglomerates
    Patent number: 6565623
    Abstract: The present invention refers to a method and an equipment for curing and drying self-reducing agglomerates containing cement as a binder in the presence of saturated vapor at a temperature from about 70 to about 110° C. and under atmospheric pressure. The treatment is performed in one single equipment.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: May 20, 2003
    Assignee: Startec Iron LLC
    Inventors: Marcos de Albuquerque Contrucci, Edmar Saul Marcheze
  • Method for recovery of metals having low vaporization temperature
    Patent number: 6517603
    Abstract: A method for reducing metal oxides in a shaft furnace. A charge of metal oxide and a reductant is reacted in the furnace to produce a primary metal of the metal oxide and an additional secondary metal. The temperature of the off gas from the reaction is controlled to prevent condensing of the secondary metal so that it remains in the off gas for separation therefrom.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: February 11, 2003
    Assignee: Startec Iron LLC
    Inventors: Marcos de Albuquerque Contrucci, Pedro Henrique Carpinetti Costa, Edmar Saul Marcheze