Patents by Inventor Luis Nunez

Luis Nunez 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).

  • Batch extracting process using magneticparticle held solvents
    Patent number: 5468456
    Abstract: A process for selectively removing metal values which may include catalytic values from a mixture containing same, wherein a magnetic particle is contacted with a liquid solvent which selectively dissolves the metal values to absorb the liquid solvent onto the magnetic particle. Thereafter the solvent-containing magnetic particles are contacted with a mixture containing the heavy metal values to transfer metal values into the solvent carried by the magnetic particles, and then magnetically separating the magnetic particles. Ion exchange resins may be used for selective solvents.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: November 21, 1995
    Assignee: The University of Chicago
    Inventors: Luis Nunez, George F. Vandergrift