Patents by Inventor Dustin Gordon

Dustin Gordon 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).

  • Processes for recovering metals from ores using organic solvent extraction and aqueous stripping at selected temperature differentials
    Publication number: 20060117908
    Abstract: The disclosed invention concerns a process comprising: (a) providing a pregnant leach solution comprising copper values; (b) contacting the pregnant leach solution with an organic phase comprising a copper extractant at an extraction temperature, Text, to form a loaded organic phase comprising the metal values; (c) contacting the loaded organic phase with an aqueous stripping solution at a stripping temperature, Tstrip, to form a copper-enriched stripping solution; wherein the difference in temperature (?T) between the stripping temperature and the extraction temperature according to equation (I): ?T=Tstrip?Text is less than or equal to about 10° C. In other increasingly more preferred embodiments of the invention, the difference in temperature (?T) is less than or equal to about 5° C., less than or equal to about 2.5° C., less than or equal to about 0° C., less than or equal to about ?5° C., and less than or equal to about ?10° C.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 8, 2006
    Inventors: Michael Virnig, R. Sudderth, Philip Crane, Andrew Nisbett, Burrel Boley, Dustin Gordon, Gary Kordosky
  • Ketoximes, processes therefor, and copper extraction process
    Patent number: 6342635
    Abstract: Ketoximes, processes for their preparation, compositions containing them, and a copper extraction process using the compositions.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: January 29, 2002
    Assignee: Henkel Corporation
    Inventors: Michael J. Virnig, Horst Josten, Mary Collins, George Wolfe, Dustin Gordon, Rainer Eskuchen, Eugen Heinrichs, Frank McDonnell, Paul O'Driscoll