Patents by Inventor Nathan C. Emmerich

Nathan C. Emmerich 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).

  • Methods and systems for reducing impurity metal from a refinery electrolyte solution
    Patent number: 10208389
    Abstract: Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein R1 comprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: February 19, 2019
    Assignee: BASF SE
    Inventors: Jack Bender, Nathan C. Emmerich
  • METHODS AND SYSTEMS FOR CONTROLLING IMPURITY METAL CONCENTRATION DURING METALLURGIC PROCESSES
    Publication number: 20180340264
    Abstract: Reagent compositions, methods and systems for reducing concentrations of impurity metals during metallurgic processes. Certain methods and systems in particular pertain to control of iron concentration in copper electrowinning electrolyte solutions.
    Type: Application
    Filed: July 30, 2018
    Publication date: November 29, 2018
    Inventors: Jack Bender, Nathan C. Emmerich
  • Methods and systems for controlling impurity metal concentration during metallurgic processes
    Patent number: 10060040
    Abstract: Reagent compositions, methods and systems for reducing concentrations of impurity metals during metallurgic processes. Certain methods and systems in particular pertain to control of iron concentration in copper electrowinning electrolyte solutions.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 28, 2018
    Assignee: BASF SE
    Inventors: Jack Bender, Nathan C. Emmerich
  • Methods And Systems For Reducing Impurity Metal From A Refinery Electrolyte Solution
    Publication number: 20170058416
    Abstract: Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein R1 comprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.
    Type: Application
    Filed: September 4, 2015
    Publication date: March 2, 2017
    Inventors: Jack Bender, Nathan C. Emmerich
  • Methods And Systems For Reducing Impurity Metal From A Refinery Electrolyte Solution
    Publication number: 20170058415
    Abstract: Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure represented by: wherein R1 comprises a linear, branched or cyclic alkyl or aryl group, and wherein the impurity metal is selected from the group consisting of iron, antimony, arsenic, bismuth, tin and combinations thereof.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 2, 2017
    Inventors: Jack Bender, Nathan C. Emmerich
  • Methods And Systems For Controlling Impurity Metal Concentration During Metallurgic Processes
    Publication number: 20150252486
    Abstract: Reagent compositions, methods and systems for reducing concentrations of impurity metals during metallurgic processes. Certain methods and systems in particular pertain to control of iron concentration in copper electrowinning electrolyte solutions.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Inventors: Jack Bender, Nathan C. Emmerich
  • Compositions and methods of using a ketoxime in a metal solvent extraction reagent
    Patent number: 8986633
    Abstract: Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect relates to a method of separating iron/copper using a specific ketoxime. Aldoximes may also be added to the reagent compositions used in these methods.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 24, 2015
    Assignee: BASF SE
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods of metal extraction using oximes
    Patent number: 8945490
    Abstract: Provided are methods method of recovering metal from an aqueous solution, the method comprising contacting an aqueous solution containing at least two metals selected from molybdenum, cobalt, nickel, zinc and iron with an organic solvent and an oxime-containing reagent composition at a predetermined pH, the predetermined pH selected to provide a high first metal extraction and a low second metal extraction; and separating the first metal from the solution.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Method for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuits
    Patent number: 8852549
    Abstract: Provided are methods for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuits, said solvents essentially consisting of at least one ketoxime and/or aldoxime; at least one equilibrium modifier; and at least one diluent.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: October 7, 2014
    Assignee: BASF Corporation
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Compositions And Methods Of Using A Ketoxime In A Metal Solvent Extraction Reagent
    Publication number: 20130302225
    Abstract: Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect relates to a method of separating iron/copper using a specific ketoxime. Aldoximes may also be added to the reagent compositions used in these methods.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 14, 2013
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods Of Metal Extraction Using Oximes
    Publication number: 20130247718
    Abstract: Provided are methods method of recovering metal from an aqueous solution, the method comprising contacting an aqueous solution containing at least two metals selected from molybdenum, cobalt, nickel, zinc and iron with an organic solvent and an oxime-containing reagent composition at a predetermined pH, the predetermined pH selected to provide a high first metal extraction and a low second metal extraction; and separating the first metal from the solution.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 26, 2013
    Applicant: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Compositions and methods of using a ketoxime in a metal solvent
    Patent number: 8529850
    Abstract: Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect relates to a method of separating iron/copper using a specific ketoxime. Aldoximes may also be added to the reagent compositions used in these methods.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 10, 2013
    Assignee: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Metal solvent extraction reagents and use thereof
    Patent number: 8475748
    Abstract: Reagent compositions, methods for their manufacture and methods of their use are described. In particular, provided are reagent compositions comprising an aldoxime and ketoxime with an alkyl substituent. Also provided are methods of metal recovery using these reagent compositions.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: July 2, 2013
    Assignee: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods of metal extraction using oximes
    Patent number: 8460623
    Abstract: Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from a nitrate-containing aqueous solution. Another such method is of extracting a metal from an aqueous ammoniacal solution. A third method is of multi-metal extraction based on a predetermined pH.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: June 11, 2013
    Assignee: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods of metal extraction from ammoniacal solutions using oximes
    Patent number: 8435466
    Abstract: Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from an aqueous ammoniacal solution. Metals that can be extracted include nickel, zinc and copper.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: May 7, 2013
    Assignee: BASF Corporation
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Method For Maintaining The Ratio Of The Oxime To Equilibrium Modifier Concentration In Solvent Extraction Circuits
    Publication number: 20130020536
    Abstract: Provided are methods for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuits, said solvents essentially consisting of at least one ketoxime and/or aldoxime; at least one equilibrium modifier; and at least one diluent.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 24, 2013
    Applicant: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Metal Solvent Extraction Reagents And Use Thereof
    Publication number: 20120219474
    Abstract: Reagent compositions, methods for their manufacture and methods of their use are described. In particular, provided are reagent compositions comprising an aldoxime and ketoxime with an alkyl substituent. Also provided are methods of metal recovery using these reagent compositions.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 30, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods Of Metal Extraction Using Oximes
    Publication number: 20120219476
    Abstract: Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from a nitrate-containing aqueous solution. Another such method is of extracting a metal from an aqueous ammoniacal solution. A third method is of multi-metal extraction based on a predetermined pH.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 30, 2012
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Methods Of Metal Extraction From Ammoniacal Solutions Using Oximes
    Publication number: 20120219478
    Abstract: Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal extraction/isolation. One such method is of extracting a metal from an aqueous ammoniacal solution. Metals that can be extracted include nickel, zinc and copper.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 30, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich
  • Compositions and Methods of Using a Ketoxime in a Metal Solvent Extraction Reagent
    Publication number: 20120219475
    Abstract: Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect relates to a method of separating iron/copper using a specific ketoxime. Aldoximes may also be added to the reagent compositions used in these methods.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 30, 2012
    Inventors: Michael Virnig, Jack Bender, Nathan C. Emmerich