Patents Assigned to Cardero Resource Corporation
  • Patent number: 8545593
    Abstract: A method for producing liquid ferroalloy by direct processing of manganese and chromium bearing iron compounds, by the steps: of mixing carbonaceous reductant, fluxing agent, and a binder with materials such as iron sands, metallic oxides, manganese-iron ore concentrates and/or chromium-iron ore concentrates and silica sands, to form a mixture; forming agglomerates from the mixture; feeding the agglomerates to a melting furnace with other materials; melting the feed materials at a temperature of from 1500 to 1760° C. and forming a slag and hot metal; removing the slag; tapping the hot metal as liquid ferroalloy, and utilizing the off-gases from the melting furnace as combustion fuel to drive a turbine and to generate electricity.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 1, 2013
    Assignee: Cardero Resource Corporation
    Inventor: Glenn E. Hoffman
  • Patent number: 8420007
    Abstract: Apparatus for producing lead and zinc from concentrates of zinc and lead sulfides or oxides, including: a source of zinc ore and/or lead ore concentrates, iron bearing and carbon containing materials; metallic iron fines and iron oxide fines; carbonaceous reductant; fluxing agent; and a binder; a mixer for forming a mixture from said concentrates and other materials; an agglomerator communicating with the mixer for forming agglomerates from the mixture; a melting furnace for melting the mixture and vaporizing lead and zinc; a pressure sealed feed system communicating with the agglomerator and the melting furnace for introducing agglomerates to the melting furnace; a pressure sealed chamber surrounding the melting furnace; a water-cooled condenser for receiving the vaporized metal and cooling and condensing the metal vapors to liquid metal; a tapping device communicating with the condenser for removing the liquid metal; and associated devices for separating the zinc and lead and recovering the lead and zinc me
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: April 16, 2013
    Assignee: Cardero Resource Corporation
    Inventor: Glenn E. Hoffman
  • Patent number: 8043408
    Abstract: A process and apparatus for producing lead and zinc from concentrates of zinc and lead sulfides or oxides includes the steps of: (a) mixing lead ore and/or zinc ore concentrates, iron bearing and carbon containing materials, metallic iron fines and iron oxide fines, carbonaceous reductant, fluxing agent, and a binder to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) maintaining a reducing atmosphere within the melting furnace; (e) vaporizing lead and zinc in the melting furnace at a temperature of 1000 to 1650 C, and removing the lead and zinc from the melting furnace in vaporized form; (f) cooling and condensing the metal vapors to liquid metal; and (g) separating the zinc and lead; and (h) recovering the lead and zinc metal separately.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: October 25, 2011
    Assignee: Cardero Resource Corporation
    Inventor: Glenn E. Hoffman
  • Patent number: 7985389
    Abstract: A method for producing pig iron by direct processing of ferrotitania sands, by the steps of: (a) mixing carbonaceous reductant, a fluxing agent, and a binder with titanium-containing materials selected from iron sands, metallic oxides, and/or iron ore concentrates, to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) melting the agglomerates at a temperature of from 1500 to 1760 C and forming hot metal with a slag thereon; (e) removing the slag; (f) tapping the hot metal; and (g) recovering the titanium and vanadium values.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 26, 2011
    Assignee: Cardero Resource Corporation
    Inventor: Glenn E. Hoffman