Patents by Inventor Trong T. Nguyen

Trong T. Nguyen 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).

  • Process for the simultaneous recovery of manganese dioxide and zinc
    Patent number: 4992149
    Abstract: A process for the simultaneous electrolytic production of manganese dioxide and zinc from a mixture, preferably waste material consisting of spent batteries and other electronic components, contains various manganese oxides and zinc in various chemical forms, wherein the mixture is leached with an acidic solvent comprising tetrafluoroboric acid and, preferably, a reducing agent and boric acid, and subjected to an electrolysis in which zinc is plated on the cathode and manganese dioxide is plated on the anode.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: February 12, 1991
    Assignee: Recytec S.A.
    Inventor: Trong T. Nguyen