Patents by Inventor Jacques De Laever

Jacques De Laever 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 of hydrometallurgical treatment for eliminating impurities from a solution containing dissolved metals
    Patent number: 4276269
    Abstract: In a hydrometallurgical treatment for eliminating one or more metal impurities from a solution containing a metal to be extracted and said metal impurities, a silicate is added to the solution forming in situ dissolved silicic acid and precipitating the metal impurities at a pH of between 1.5 and 4.5 to form a solid silicate residue.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: June 30, 1981
    Assignee: Hollux S.A.
    Inventors: Serge R. de Lockerente, Jacques De Laever