Patents by Inventor David G. Meadows

David G. Meadows 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).

  • Patent number: 11932919
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: March 19, 2024
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20230134310
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 11584974
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: February 21, 2023
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20210332458
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 11053566
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: July 6, 2021
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 10793958
    Abstract: A process and system is provided for recovery of one or more metal values using solution extraction techniques and 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: June 27, 2018
    Date of Patent: October 6, 2020
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20200063236
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 10501821
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 10, 2019
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20180305832
    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: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Publication number: 20180305788
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 10036080
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: July 31, 2018
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 10036096
    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: August 21, 2015
    Date of Patent: July 31, 2018
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 9856570
    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: August 18, 2016
    Date of Patent: January 2, 2018
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20160355937
    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: Application
    Filed: August 18, 2016
    Publication date: December 8, 2016
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 9447483
    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: March 15, 2013
    Date of Patent: September 20, 2016
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Publication number: 20160053341
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Application
    Filed: October 22, 2015
    Publication date: February 25, 2016
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Publication number: 20150361527
    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: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicant: FREEPORT MINERALS CORPORATION
    Inventors: Anand Raman, Jason M. Morgan, Barbara J. Savage, David G. Meadows, Wayne W. Hazen
  • Patent number: 9169533
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 27, 2015
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 9023313
    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: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: Freeport Minerals Corporation
    Inventors: Anand Raman, Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 8828353
    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: January 8, 2013
    Date of Patent: September 9, 2014
    Assignee: Freeport Minerals Corporation
    Inventors: Barbara J. Savage, David G. Meadows, Wayne W. Hazen