Patents by Inventor Dale G. Kalina

Dale G. Kalina 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).

  • Method for extracting lanthanides and actinides from acid solutions by modification of purex solvent
    Patent number: 4574072
    Abstract: A process for the recovery of actinide and lanthanide values from aqueous solutions with an extraction solution containing an organic extractant having the formula: ##STR1## where .phi. is phenyl, R.sup.1 is a straight or branched alkyl or alkoxyalkyl containing from 6 to 12 carbon atoms and R.sup.2 is an alkyl containing from 3 to 6 carbon atoms and phase modifiers in a water-immiscible hydrocarbon diluent. The addition of the extractant to the Purex process extractant, tri-n-butylphosphate in normal paraffin hydrocarbon diluent, will permit the extraction of multivalent lanthanide and actinide values from 0.1 to 12.0 molar acid solutions.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: March 4, 1986
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: E. Philip Horwitz, Dale G. Kalina
  • Method for extracting lanthanides and actinides from acid solutions
    Patent number: 4548790
    Abstract: A process for the recovery of actinide and lanthanide values from aqueous acidic solutions with an organic extractant having the formula: ##STR1## where .phi. is phenyl, R.sup.1 is a straight or branched alkyl or alkoxyalkyl containing from 6 to 12 carbon atoms and R.sup.2 is an alkyl containing from 3 to 6 carbon atoms. The process is suitable for the separation of actinide and lanthanide values from fission product values found together in high level nuclear reprocessing waste solutions.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: October 22, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: E. Philip Horwitz, Dale G. Kalina, Louis Kaplan, George W. Mason