Patents by Inventor Daniel McSweeney

Daniel McSweeney 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).

  • Highly-conductive copper extractant formulations
    Patent number: 7585475
    Abstract: A method of creating solvent extraction reagent formulations that have high conductivity by combining (a) phenolic oxime extraction reagent(s) or other extraction reagent(s) in the organic phase of a solvent extraction circuit of a metal recovery operation, comprising combining the phenolic oxime extraction reagent(s) or other reagent(s) with one or more ketone, nitrile and/or amide compounds, or mixtures thereof, to create an extraction reagent formulation with a conductivity of at least 4,000 pS/m, measured according to the provisions of BS 5958 Part I, as well as a method of creating an organic phase that has a high conductivity, preferably a conductivity of at least 250 pS/m, comprising adding to that organic phase in an extraction circuit a phenolic oxime extraction reagent formulation with one or more ketoxime, aldoxime, mixtures thereof, or one or more other extraction reagents, and one or more ketone, nitrile, or amide compounds, or mixture thereof, and novel ketone, nitrile and amide compounds.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: September 8, 2009
    Assignee: Cognis IP Management GmbH
    Inventors: Michael J. Virnig, Daniel McSweeney, Frank McDonnell
  • Highly-conductive copper extractant formulations
    Publication number: 20080035893
    Abstract: A method of creating solvent extraction reagent formulations that have high conductivity by combining (a) phenolic oxime extraction reagent(s) or other extraction reagent(s) in the organic phase of a solvent extraction circuit of a metal recovery operation, comprising combining the phenolic oxime extraction reagent(s) or other reagent(s) with one or more ketone, nitrile and/or amide compounds, or mixtures thereof, to create an extraction reagent formulation with a conductivity of at least 4,000 pS/m, measured according to the provisions of BS 5958 Part I, as well as a method of creating an organic phase that has a high conductivity, preferably a conductivity of at least 250 pS/m, comprising adding to that organic phase in an extraction circuit a phenolic oxime extraction reagent formulation with one or more ketoxime, aldoxime, mixtures thereof, or one or more other extraction reagents, and one or more ketone, nitrile, or amide compounds, or mixture thereof, and novel ketone, nitrile and amide compounds.
    Type: Application
    Filed: July 12, 2007
    Publication date: February 14, 2008
    Inventors: Michael J. Virnig, Daniel McSweeney, Frank McDonnell