Patents by Inventor James K. Grunig

James K. Grunig 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).

  • Solvent extraction of aluminum
    Patent number: 3966909
    Abstract: A process is described for the selective recovery of aluminum from an impure solution in which aluminum is dissolved, comprising contacting said solution with a symmetrical bis(3,5-C.sub.1 -C.sub.10 alkyl-substituted phenyl) hydrogen phosphate to extract the aluminum, and separating the aluminum from said extract.
    Type: Grant
    Filed: March 13, 1975
    Date of Patent: June 29, 1976
    Assignee: The Anaconda Company
    Inventors: James K. Grunig, Rodney J. Anderson