Abstract: A method with which americium may be selectively recovered from a nitric aqueous phase containing americium, curium and fission products including lanthanides and yttrium, but which is free of uranium, plutonium and neptunium or which only contains these three last elements in trace amounts. The method is applicable for treatment and recycling of irradiated nuclear fuels, in particular for removing americium from raffinates stemming from methods for extracting and purifying uranium and plutonium such as the PUREX and COEX™ methods.
Type:
Application
Filed:
July 26, 2010
Publication date:
June 21, 2012
Applicants:
AREVA INC, Commissariat a l'energie atomique et aux energies alternatives
Inventors:
Xavier Heres, Pascal Baron, Christian Sorel, Clément Hill, Gilles Bernier
Abstract: Device comprising means of separating at least two sintering shoes for transporting nuclear fuel pellets capable of moving according to a first axis (X) and of which two end faces are in contact with one another, wherein said separating means are capable of moving at least one of the two sintering shoes close to said end faces in contact, according to a second vertical axis (Y) substantially orthogonal to the first axis (X).