Patents Assigned to Freeport-McMoran Corporation
  • Publication number: 20130153518
    Abstract: The present invention provides a mixer-settler extraction circuit for separating liquids from each other. The mixer-settler extraction circuit includes a flow distributor. The flow distributor comprises a slat assembly which directs the incoming liquid into the settling portion of the mixer-settler extraction circuit. The slats of the slat assembly may be spaced apart from each other at varying distances.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Steven Richardson, William Cashwell, Jason M. Morgan
  • Publication number: 20130126341
    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: January 11, 2013
    Publication date: May 23, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventor: FREEPORT-McMORAN CORPORATION
  • Publication number: 20130118310
    Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution. The methods can also incorporate an ion exchange as a rhenium recovery apparatus.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 16, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventor: FREEPORT-MCMORAN CORPORATION
  • Publication number: 20130121910
    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: January 8, 2013
    Publication date: May 16, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventor: FREEPORT-MCMORAN CORPORATION
  • Patent number: 8420048
    Abstract: The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 16, 2013
    Assignee: Freeport-McMoran Corporation
    Inventors: Anand Raman, Jason M. Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 8372361
    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: Grant
    Filed: November 22, 2011
    Date of Patent: February 12, 2013
    Assignee: Freeport-McMoran Corporation
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 8372360
    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: Grant
    Filed: July 21, 2011
    Date of Patent: February 12, 2013
    Assignee: Freeport-McMoran Corporation
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 8372254
    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: Grant
    Filed: September 29, 2011
    Date of Patent: February 12, 2013
    Assignee: Freeport-McMoran Corporation
    Inventors: Scot P Sandoval, Casey J Clayton, Timothy G Robinson, Christopher John Zanotti, Martin Kim Zanotti
  • Patent number: 8361192
    Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: January 29, 2013
    Assignee: Freeport-McMoran Corporation
    Inventors: Brett T. Waterman, Steve Nels Dixon, Theresa Linne Morelli, George Owusu, Stefka Todorova Ormsby
  • Publication number: 20130001093
    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: September 5, 2012
    Publication date: January 3, 2013
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
  • Publication number: 20120304827
    Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 6, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Brett T. Waterman, Steve Nels Dixon, Theresa Linne Morelli, George Owusu, Stefka Todorova Ormsby
  • Patent number: 8308920
    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: Grant
    Filed: June 28, 2011
    Date of Patent: November 13, 2012
    Assignee: Freeport-McMoran Corporation
    Inventors: Bret Ashford, William A Ebert, Fernando D Mollo Vega, Samuel Rasmussen, Timothy G Robinson, Scot P Sandoval
  • Patent number: 8273237
    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: Grant
    Filed: January 16, 2009
    Date of Patent: September 25, 2012
    Assignee: Freeport-McMoran Corporation
    Inventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
  • Publication number: 20120205239
    Abstract: The present invention relates to an anode assembly for use in an electrolytic cell for recovery of metal. The assembly includes a hanger bar, a first perimeter bar, a second perimeter bar, optionally one or more center conductor bars, a base bar, a first tab coupled to the first perimeter bar and/or the base bar, and a second tab coupled to the second perimeter bar and/or the base bar. The assembly may also include insulating separators coupled to the tabs and/or insulators coupled to an active area of the anode assembly. A system includes the anode assembly, a cathode assembly, and a tank.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 16, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Luis A. Gonzalez Olguin, Rafael Garcia Navarro, Luis Ricardo Olivares, Larry R. Todd, Ron Haines, Chris Zanotti, Casey J. Clayton, Mark Peabody, Scot P. Sandoval
  • Publication number: 20120205254
    Abstract: The present invention relates to a contact bar assembly for use in a multi-cell electrolytic system for recovery of metal, to a system including the contact bar assembly, and to a method of using the assembly and system. The contact bar assembly includes a base cap board, a primary bar having a plurality of primary bar structures formed thereon, an auxiliary bar having a plurality of auxiliary bar structures formed thereon, and a top cap board, wherein the base cap board includes slots to receive the primary bar and the auxiliary bar, and wherein the top cap board includes a plurality of openings to receive the plurality of primary bar structures and the plurality of auxiliary bar structures. A system includes the contact bar assembly, an anode assembly, a cathode assembly, and a tank.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 16, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Rafael Garcia Navarro, Luis A. Gonzalez Olguin, Luis Ricardo Olivares, Larry R. Todd, Mark Peabody, Casey J. Clayton, Scot P. Sandoval
  • Patent number: 8187450
    Abstract: The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction. In general, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the efficient and cost-effective operation of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m2), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advantageous.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: May 29, 2012
    Assignee: Freeport-McMoran Corporation
    Inventors: Scot Philip Sandoval, Timothy George Robinson, Paul Richard Cook
  • Publication number: 20120125160
    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: January 30, 2012
    Publication date: May 24, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: James D Gillaspie, David R. Baughman, Dennis D. Gertenbach, Wayne W. Hazen, George Owusu, John C Wilmot
  • Publication number: 20120118110
    Abstract: A system and method for recovering a metal value from a metal-bearing ore material are provided. A metal-bearing ore can be mixed with certain substances and to form an agglomerated ore. In an intermediate state, between agglomeration and heap formation, bacteria can be added to the metal-bearing ore material to produce an augmented ore. The augmented ore can then be formed into a heap.
    Type: Application
    Filed: January 24, 2012
    Publication date: May 17, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: John Lawrence Urie, Gabe Bowman, Cristian Alejandro Caro Matus, Percy Mayta, Scott Hoenecke, Manuel Chavez
  • Publication number: 20120085706
    Abstract: The present invention relates to a method and article for manipulating an amount of organic material entrained in an aqueous phase of a solvent extraction process. The method includes estimating an interfacial shear stress between an aqueous phase and an organic phase of a solvent extraction apparatus, estimating an amount of organic material entrained in the aqueous phase based on the estimated interfacial shear stress, and manipulating one or more solvent extraction process parameters to manipulate the amount of organic material entrained in the aqueous phase. The method and apparatus can be used to improve performance of and reduce operating costs associated with the solvent extraction apparatus.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Charles L. Bryce, Jason M. Morgan, William R. Sircy, Rosemary D. Blosser
  • Publication number: 20120060651
    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: November 22, 2011
    Publication date: March 15, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen