Patents by Inventor Fernand J. J. Bodson

Fernand J. J. Bodson 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 removal of impurities contained in a zinc and cadmium sulfate solution
    Patent number: 4156711
    Abstract: Process for removing chlorine from an acidic zinc or cadmium sulphate solon, comprising adding thereto acid of Caro or an ammonium or alkali metal salt thereof.
    Type: Grant
    Filed: November 11, 1977
    Date of Patent: May 29, 1979
    Assignee: Societe des Mines et Fonderies de Zinc de la Vieille Montagne, S.A.
    Inventor: Fernand J. J. Bodson
  • Process for recovering silver and optionally gold from a solid starting material containing said metals
    Patent number: 4145212
    Abstract: The invention relates to a process for recovering silver and possibly gold contained in a silver and possibly gold bearing solid starting material, in which said metals are present in low proportions, a part thereof being in the form of free sulphides, possibly in mixture with elemental sulphur, in which said starting material is treated with an aqueous solution of thiourea, so as to solubilize the silver and the gold in the form of complexes with the thiourea, and the obtained solution is subjected to a cementation with a metal so as to obtain a cement containing more than about 90% of silver.
    Type: Grant
    Filed: October 18, 1977
    Date of Patent: March 20, 1979
    Assignee: Societe des Mines et Fonderies de Zinc de la Vieille Montagne
    Inventor: Fernand J. J. Bodson