Patents by Inventor Abdi Tunayar

Abdi Tunayar 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).

  • Method for separating actinides and lanthanides by membrane transport using a calixarene
    Patent number: 6306355
    Abstract: The invention involves the separation of actinides and lanthanides by membrane transport by means of a calixarene. To this end, a first aqueous solution containing at least one metal from the group of actinides and lanthanides to be separated is placed in the compartment 3 and a second aqueous re-extraction solution such as a 10−2 mol/L solution of HNO3 is placed in the compartment 5. The membrane 6 is a microporous membrane of which the pores are filled with a liquid organic phase (calixarene and diluent) chosen in order to favour membrane transport of the metal(s) to be separated from compartment 3 to compartment 5.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: October 23, 2001
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Laetitia Delmau, Nicole Simon, Jean-François Dozol, Bernard Tournois, Christine Roussin-Bouchard, Volker Böhmer, Ralf A. Jakobi, Oliver Mogck, Abdi Tunayar