Patents by Inventor John O. Marsden
John O. Marsden 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).
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Publication number: 20130001093Abstract: 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: ApplicationFiled: September 5, 2012Publication date: January 3, 2013Applicant: FREEPORT-MCMORAN CORPORATIONInventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
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Patent number: 8273237Abstract: 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: GrantFiled: January 16, 2009Date of Patent: September 25, 2012Assignee: Freeport-McMoran CorporationInventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
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Patent number: 8016983Abstract: This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) 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 and/or direct electrowinning.Type: GrantFiled: May 18, 2010Date of Patent: September 13, 2011Assignee: Freeport-McMoran CorporationInventors: Antonioni C. Stevens, Stanley R. Gilbert, Scot P. Sandoval, Timothy G. Robinson, John O. Marsden
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Patent number: 8012318Abstract: 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: GrantFiled: April 29, 2010Date of Patent: September 6, 2011Assignee: Freeport-McMoran CorporationInventors: John O Marsden, Robert E Brewer, Susan R Brewer, Joanna M Robertson, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
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Publication number: 20100224484Abstract: This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) 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 and/or direct electrowinning.Type: ApplicationFiled: May 18, 2010Publication date: September 9, 2010Applicant: FREEPORT-MCMORAN CORPORATIONInventors: Antonioni C. Stevens, Stanley R. Gilbert, Scot P. Sandoval, Timothy G. Robinson, John O. Marsden
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Publication number: 20100206741Abstract: 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: ApplicationFiled: April 29, 2010Publication date: August 19, 2010Applicant: FREEPORT-MCMORAN CORPORATIONInventors: John O. Marsden, Robert E. Brewer, Susan R. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans
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Patent number: 7736488Abstract: 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: GrantFiled: December 29, 2008Date of Patent: June 15, 2010Assignee: Freeport-McMoran CorporationInventors: John O Marsden, Robert E Brewer, Susan R Brewer, Joanna M Robertson, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
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System and method for producing copper power by electrowinning in a flow-through electrowinning cell
Patent number: 7736486Abstract: This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) 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 and/or direct electrowinning.Type: GrantFiled: May 23, 2008Date of Patent: June 15, 2010Assignee: Freeport-McMoran CorporationInventors: Antonioni C Stevens, Stanley R Gilbert, Scot P Sandoval, Timothy G Robinson, John O Marsden -
Patent number: 7736476Abstract: 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: GrantFiled: November 4, 2008Date of Patent: June 15, 2010Assignee: Freeport-McMoran CorporationInventors: Stanley R Gilbert, Scot P Sandoval, Antonioni C Stevens, Timothy G Robinson, John O Marsden
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Patent number: 7736475Abstract: 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: GrantFiled: December 11, 2008Date of Patent: June 15, 2010Assignee: Freeport-McMoran CorporationInventors: Scot P Sandoval, Antonioni C Stevens, Timothy G Robinson, John O Marsden, Stanley R Gilbert
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Patent number: 7736487Abstract: 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. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.Type: GrantFiled: May 1, 2007Date of Patent: June 15, 2010Assignee: Freeport-McMoran CorporationInventors: John O. Marsden, John C. Wilmot, Christy Green, Wayne W. Hazen, David R. Baughman
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Patent number: 7722756Abstract: 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: GrantFiled: November 19, 2008Date of Patent: May 25, 2010Assignee: Freeport-McMoran CorporationInventors: John O Marsden, Joanna M Robertson, Robert E Brewer, Susan R. Brewer, legal representative, David R Baughman, Philip Thompson, Wayne W Hazen, Christel M. A. Bemelmans
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Patent number: 7666371Abstract: 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: GrantFiled: December 7, 2007Date of Patent: February 23, 2010Assignee: Freeport-McMoran CorporationInventors: John O Marsden, Robert E Brewer, Joanna M Robertson, Wayne W Hazen, Philip Thompson, David R Baughman
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Patent number: 7591934Abstract: 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: GrantFiled: June 30, 2008Date of Patent: September 22, 2009Assignee: Freeport-McMoran CorporationInventors: John O Marsden, Scot P Sandoval, Antonioni C Stevens, Timothy G Robinson, Stanley R Gilbert
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Publication number: 20090183997Abstract: 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: ApplicationFiled: January 16, 2009Publication date: July 23, 2009Applicant: PHELPS DODGE CORPORATIONInventors: John O. Marsden, James D. Gillaspie, John C. Wilmot
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Publication number: 20090145749Abstract: 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: ApplicationFiled: December 11, 2008Publication date: June 11, 2009Applicant: PHELPS DODGE CORPORATIONInventors: Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, John O. Marsden, Stanley R. Gilbert
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Publication number: 20090120789Abstract: 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: ApplicationFiled: November 4, 2008Publication date: May 14, 2009Applicant: PHELPS DODGE CORPORATIONInventors: Stanley R. Gilbert, Scot P. Sandoval, Antonioni C. Stevens, Timothy G. Robinson, John O. Marsden
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Publication number: 20090101518Abstract: 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: ApplicationFiled: December 29, 2008Publication date: April 23, 2009Applicant: PHELPS DODGE CORPORATIONInventors: John O. Marsden, Robert E. Brewer, Susan R. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans
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Patent number: 7517384Abstract: 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: GrantFiled: October 23, 2006Date of Patent: April 14, 2009Assignee: Phelps Dodge CorporationInventors: John O. Marsden, Robert E. Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Roland Schmidt
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Publication number: 20090071839Abstract: 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: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Applicant: PHELPS DODGE CORPORATIONInventors: John O. Marsden, Susan R Brewer, Robert E Brewer, Joanna M. Robertson, David R. Baughman, Philip Thompson, Wayne W. Hazen, Christel M.A. Bemelmans