Patents by Inventor Paul Besson

Paul Besson 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 separation of zirconium and hafnium tetrachlorides from mixtures thereof
    Patent number: 4021531
    Abstract: The invention relates to a process for the separation of zirconium, and hafnium tetrachlorides from mixtures thereof. The process according to the invention consists of selectively absorbing zirconium tetrachloride and hafnium tetrachloride vapors in a solvent medium circulating counter-current to these vapors in a distillation column, wherein the solvent consists of a molten chloroaluminate and/or chloroferrate of potassium. The process described may be used to obtain hafnium-free zirconium tetrachloride which may then be used to prepare nuclear-grade zirconium, and hafnium tetrachloride containing little zirconium.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: May 3, 1977
    Assignee: Ugine Aciers
    Inventors: Paul Besson, Jean Guerin, Pierre Brun, Michel Bakes
  • Centrifugation machine for separating, drying or the like
    Patent number: D280628
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: September 17, 1985
    Assignee: Guinard Centrifugation
    Inventor: Paul Besson