Patents Assigned to Phelps Dodge Corporation
  • Publication number: 20100276281
    Abstract: An electrode for use in producing copper in either a conventional electrowinning cell or the direct electrowinning cell is provided. The electrode includes a hanger bar and an electrode body coupled with the hanger bar. The electrode body includes at least one conductor rod having a core and an outer layer surrounding the core and a substrate coupled with the conductor rod.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Scot P. Sandoval, Casey J. Clayton, Timothy G. Robinson, Christopher John Zanotti, Martin Kim Zanotti
  • Patent number: 7656311
    Abstract: A position tracking system for determining a position of a vehicle. The position tracking system invention includes at least two position-enabled mesh nodes mounted to the vehicle and a mesh network operatively associated with the at least two position-enabled mesh nodes mounted to the vehicle. The mesh network is configured to determine a position of the vehicle based on signals received from the at least two position-enabled mesh nodes mounted to the vehicle. The position tracking system also includes a display system, which is operatively associated with the mesh network and which displays the position of the vehicle.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: February 2, 2010
    Assignee: Phelps Dodge Corporation
    Inventors: Steven C. Holmes, Mark W. Bartlett, Robert D. Coyle, Russell Armbrust, Donald W. Treadaway, Steve L. Williamson, James Edward Hanson, Jennifer D. Carpenter
  • Publication number: 20090288958
    Abstract: Accordingly, in various embodiments, the present invention provides methods for making electrochemically active materials. Methods include making an electrochemically active material by reacting a platinum group metal salt in a organic solvent to yield a mixture, then heating the mixture to create a metal-organic solvent complex and an acid, followed by removing at least a portion of the acid, and yielding an electrochemically active material comprising the metal-organic solvent complex. In an exemplary embodiment, the resulting electrochemically active material may be used for coating an electrode.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 26, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Scot P. Sandoval, Michael D. Waite, Casey J. Clayton
  • Publication number: 20090288856
    Abstract: Various embodiments provide an electrode comprising a conductive substrate, a first layer of a mixture comprising iridium oxide in a crystalline phase and tantalum oxide in an amorphous phase on a portion of an outer surface of the conductive substrate, and a second layer of the mixture comprising iridium oxide in an amorphous phase and tantalum oxide in an amorphous phase on an outer surface of the first layer.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 26, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Scot P. Sandoval, Michael D. Waite, Masatsugu Morimitsu, Casey J. Clayton
  • Publication number: 20090183997
    Abstract: The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 23, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
  • Publication number: 20090152124
    Abstract: In various embodiments, the present invention provides an electrolytic cell contact bar having a first pole and a pair of second poles. The second poles are opposite in charge to the first pole and each of the pair of second poles are adjacent to and parallel to the first pole. In various embodiments, the contact bar may include an electrode holder capable of holding at least one electrode.
    Type: Application
    Filed: November 6, 2008
    Publication date: June 18, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Brett Ashford, William A. Ebert, Fernando D. Mollo Vega, Samuel Rasmussen, Timothy G. Robinson, Scot P. Sandoval
  • Publication number: 20090145749
    Abstract: The present invention relates, generally, to a method for electrowinning copper powder, and more particularly to a method for electrowinning copper powder from a copper-containing solution using the ferrous/ferric anode reaction. In accordance with various embodiments of the present invention, a process for producing copper powder by electrowinning employs alternative anode reaction technology, namely, the ferrous/ferric anode reaction, and enables the efficient and cost-effective production of copper powder at a total cell voltage of less than about 1.5 V and at current densities of greater than 50 A/ft2. A copper powder electrowinning process in accordance with the present invention also reduces or eliminates acid mist generation that is characteristic of electrowinning operations utilizing conventional electrowinning chemistry (e.g., oxygen evolution at the anode), which is advantageous.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 11, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, John O. Marsden, Stanley R. Gilbert
  • Publication number: 20090120789
    Abstract: This invention relates to a system and method for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through electrowinning cell. The present invention enables the production of high quality metal powders, including copper powder, from metal-containing solutions using conventional electrowinning processes, direct electrowinning, or alternative anode reaction chemistries.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 14, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Stanley R. Gilbert, Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, John O. Marsden
  • Publication number: 20090101518
    Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.
    Type: Application
    Filed: December 29, 2008
    Publication date: April 23, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: John O. Marsden, Robert E. Brewer, Susan R. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans
  • Patent number: 7517384
    Abstract: The present invention is directed to a system for recovering metal values from metal-bearing materials. During a reactive process, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or otherwise encapsulate the metal value, thereby reducing the amount of desired metal values partially or completely encapsulated by such material. The seeding agent may be generated in a number of ways, including the recycling of residue or the introduction of foreign substances. Systems embodying aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, zinc, rhenium, uranium, rare earth metals, and platinum group metals from any metal-bearing material, such as ores and concentrates.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: April 14, 2009
    Assignee: Phelps Dodge Corporation
    Inventors: John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Roland Schmidt
  • Publication number: 20090074639
    Abstract: The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution (“HGPLS”) and a low grade pregnant leach solution (“LGPLS”) to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Publication number: 20090071839
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 19, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: John O. Marsden, Susan R Brewer, Robert E Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans
  • Publication number: 20090074640
    Abstract: The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodiment of the present invention relates to a process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that can then be collected and removed. Additionally, in an exemplary embodiment of the present invention, at least one silica seeding agent is added to induce formation of colloidal silica, at least one flocculant is added to induce aggregation of the colloidal silica, and a solid-liquid separation process is utilized to remove advantageous amounts or substantially all of the colloidal silica, thereby providing relief from supersaturation of dissolved silica in the metal recovery processes.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 19, 2009
    Applicant: PHELPS DODGE CORPORATION
    Inventors: James D. Gillaspie, David R. Baughman, Dennis D. Gertenbach, Wayne W. Hazen, George Owusu, John C. Wilmot
  • Patent number: 7494580
    Abstract: The present invention relates, generally, to a method for electrowinning copper powder, and more particularly to a method for electrowinning copper powder from a copper-containing solution using the ferrous/ferric anode reaction. In accordance with various embodiments of the present invention, a process for producing copper powder by electrowinning employs alternative anode reaction technology, namely, the ferrous/ferric anode reaction, and enables the efficient and cost-effective production of copper powder at a total cell voltage of less than about 1.5 V and at current densities of greater than 50 A/ft2. A copper powder electrowinning process in accordance with the present invention also reduces or eliminates acid mist generation that is characteristic of electrowinning operations utilizing conventional electrowinning chemistry (e.g., oxygen evolution at the anode), which is advantageous.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: February 24, 2009
    Assignee: Phelps Dodge Corporation
    Inventors: Scot P Sandoval, Antonioni C Stevens, Timothy G Robinson, John O Marsden, Stanley R Gilbert
  • Patent number: 7485216
    Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: February 3, 2009
    Assignee: Phelps Dodge Corporation
    Inventors: John O. Marsden, Susan R. Brewer, legal representative, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M. A. Bemelmans, Robert E. Brewer
  • Patent number: 7476308
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: January 13, 2009
    Assignee: Phelps Dodge Corporation
    Inventors: John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Phillip Thompson, Wayne W. Hazen, Christel M. A. Bemelmans
  • Patent number: 7473413
    Abstract: The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials through pressure leaching operations. In accordance with the various aspects of the present invention, metal-containing pregnant leach solutions from pressure leaching operations need not be significantly diluted to facilitate effective metal recovery using solvent extraction and electrowinning.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 6, 2009
    Assignee: Phelps Dodge Corporation
    Inventors: John O. Marsden, Robert E. Brewer, Joanna M. Robertson, Wayne W. Hazen, Philip Thompson, David R. Baughman
  • Patent number: 7462272
    Abstract: A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: December 9, 2008
    Assignee: Phelps Dodge Corporation
    Inventors: John O. Marsden, Susan R. Brewer, legal representative, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M. A. Bemelmans, Robert E. Brewer
  • Patent number: 7452455
    Abstract: This invention relates to a system and method for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through electrowinning cell. The present invention enables the production of high quality metal powders, including copper powder, from metal-containing solutions using conventional electrowinning processes, direct electrowinning, or alternative anode reaction chemistries.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: November 18, 2008
    Assignee: Phelps Dodge Corporation
    Inventors: Scot P Sandoval, Antonioni C Stevens, Timothy G Robinson, John O Marsden, Stanley R Gilbert
  • Publication number: 20080257712
    Abstract: This invention relates to an apparatus for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through electrowinning cell. A new design for a flow-through electrowinning cell that employs both flow-through anodes and flow-through cathodes is described. The present invention enables the production of high quality metal powders, including copper powder, from metal-containing solutions using conventional electrowinning processes, direct electrowinning, or alternative anode reaction chemistry.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 23, 2008
    Applicant: PHELPS DODGE CORPORATION
    Inventors: John O. Marsden, Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, Stanley R. Gilbert