Patents by Inventor John M. McEven

John M. McEven 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).

  • Iodine recovery process
    Patent number: 4131645
    Abstract: Iodine is recovered from an aqueous solution containing iodide such as underground brine by repeated cycles of (1) passing the brine through a basic anion exchange resin to adsorb iodide, and (2) oxidizing adsorbed iodide to iodine by passing an acidified aqueous iodate solution (e.g., NaIO.sub.3) through the resin. The cycle is repeated many times until the resin is iodine-loaded. Iodine is then eluted from the resin, for example, with aqueous NaOH and recovered from the eluate by conventional means.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: December 26, 1978
    Assignee: Ethyl Corporation
    Inventors: Kestutis A. Keblys, John M. McEven