Patents by Inventor Michel Laveyne

Michel Laveyne 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 treatment of a purge solution particularly intended for a process for the extraction of zinc by electrolysis
    Patent number: 4557908
    Abstract: The invention relates to the treatment of purge solutions formed in the process of the extraction of zinc by electrolysis.According to the invention, the purge solution, which consists of a part of the purified solution rich in zinc sulfate, is subjected to electrodialysis in the presence of an anion exchange membrane so that a catholyte is formed which is depleted in zinc and in sulfate and which contains magnesium. The catholyte can then be precipitated by neutralization, after recovery of the remaining zinc.Application to the extraction of zinc from its ores.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: December 10, 1985
    Assignees: Minemet Recherche, Preussag-Weser-Zink GmbH
    Inventors: Michel Laveyne, Claude Palvadeau