Next generation extractants for separation of cesium from high-level waste
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061 (United States)
- Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37830-6119 (United States)
Using calix[4]arene as a scaffold, lipophilic, proton-ionizable ligands for cesium ion extraction have been synthesized. In the 1,3-alternate conformation, lipophilic octyl groups are attached to distal oxygens on one side of the calix[4]arene molecule, and an alkylated benzo-crown-6 unit is connected to distal oxygens on the other side. One phenyl octyl ether unit bears an acidic group in the para-position which orients it directly over the polyether ring. Solvent extractions of trace cesium ion from aqueous solutions into toluene have been performed. The efficiency of cesium ion extraction as a function of the aqueous phase pH and the identity of the acidic group have been assessed. Promising results are obtained for this new series of cesium ion extractants. (authors)
- Research Organization:
- Chemical Sciences Division, Oak Ridge National Laboratory (United States)
- OSTI ID:
- 21230404
- Country of Publication:
- United States
- Language:
- English
Similar Records
Next Generation Extractants for Cesium Separation from High-Level Waste: From Fundamental Concepts to Site Implementation
Next Generation Extractants for Cesium Separation from High-Level Waste: From Fundamental Concepts to Site Implementation