Patents by Inventor Albert Laurent-Atthalin

Albert Laurent-Atthalin 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 continuous production of pure sodium
    Patent number: 4017306
    Abstract: The invention relates to a purification process by which sodium of extremely high purity, more especially with a low calcium content, can be obtained from commercial-grade sodium.The process according to the invention essentially comprises continuously introducing a predetermined quantity of sodium peroxide into a stream of sodium, mixing and subsequently reacting this sodium peroxide with the sodium at a suitable temperature and finally separating the products of the reaction from the sodium by decantation and filtration.The extremely high-purity sodium thus obtained satisfies in particular the requirements of the atomic industry for its use as a heat-carrying fluid in nuclear reactors of the "breeder" type.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: April 12, 1977
    Assignee: Metaux Speciaux S.A.
    Inventors: Bernard Batoux, Albert Laurent-Atthalin, Michel Salmon