Patents by Inventor Diana M. Anderson nee Mounsey

Diana M. Anderson nee Mounsey 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).

  • Patent number: 4452706
    Abstract: Various metals including cobalt nickel and copper can be recovered from a roasted ground ore or waste and particularly from tailings of a pyritic gold ore by leaching with sulphuric acid, oxidizing the separated leach liquor, filtering and partially neutralizing the liquor. In an improved process, the oxidation is effected with peroxomonosulphuric acid and the neutralization with a 60:40 to 40:60 mixture of calcium and sodium hydroxide/oxide. By so doing, it is possible to minimize the number of process stages by elimination of either or both solid/liquid separations and to combine the leach and oxidation stage, or to improve the separation of metals from impurities.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: June 5, 1984
    Assignee: Interox Chemicals Limited
    Inventors: John R. H. Shaw, Diana M. Anderson nee Mounsey