Nuclear energy research initiative project final report. Report Period: October 1, 1999 - March 31, 2003

Beitz, J. V.

Argonne National Laboratory

关键词: Spacers;    Actinides;    Radioactive Wastes;    Nuclear Energy;    29 Energy Planning, Policy And Economy;   

DOI  :  10.2172/811284
RP-ID  :  ANL-03/19
RP-ID  :  W-31-109-ENG-38
RP-ID  :  811284

美国|英语

来源: UNT Digital Library

【 摘 要 】

This project developed a single material approach to reducing nuclear waste volume based on a chemically functionalized porous silica that is termed Diphosil. Diphosil was created by Chiarizia and coworkers as an ion exchange medium that selectively and nearly irreversibly sorbs highly charged metal ions, such as actinides, from appreciably acidic aqueous solutions and a version of it is now commercially available. The chelating power of Diphosil is due to diphosphonic acid groups that are anchored to its silica surface via organic spacer groups. Approximately 90% of the weight of dry Diphosil is silica (SiO{sub 2}). Vitreous silica is one of the most radiation resistant glasses known.