Patents by Inventor Joseph E. Gliksman

Joseph E. Gliksman 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 defluorinating wet process phosphoric acid
    Patent number: 5002744
    Abstract: A method for defluorinating wet process phosphoric acid. Phosphatic waste clay from phosphate rock beneficiation is mixed with the wet process phosphoric acid. The mixture is heated for a time sufficient to remove fluorine from the acid as gaseous silicon tetrafluoride. Phosphate is liberated from the phosphatic waste clay and thus is recovered in the defluorinated wet process phosphoric acid.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: March 26, 1991
    Assignee: IMC Fertilizer, Inc.
    Inventors: Joseph E. Gliksman, Dennis H. Michalski, Ronald L. Wiegel