Direct separation of minor actinides from high level liquid waste by Me ₂ -CA-BTP/SiO₂-P adsorbent.

ABSTRACT: Directly separating minor actinides (MA: Am, Cm, etc.) from high level liquid waste (HLLW) containing lanthanides and other fission products is of great significance for the whole nuclear fuel cycle, especially in the aspects of reducing long-term radioactivity and simplifying the post-processing separation process. Herein, a novel silica-based adsorbent Me₂-CA-BTP/SiO₂-P was prepared by impregnating Me₂-CA-BTP (2,6-bis(5,6,7,8-tetrahydro-5,8,9,9-tetramethyl-5,8-methano-1,2,4-benzotriazin-3-yl)pyridine) into porous silica/polymer support particles (SiO₂-P) under reduced pressure. It was found Me₂-CA-BTP/SiO₂-P exhibited good adsorption selectivity towards ²⁴¹Am(III) over ¹⁵²Eu(III) in a wide nitric acid

SUBMITTER: Ning SY 

PROVIDER: S-EPMC5665906 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature