Abstract
Concepts for the selective separation of sodium hydroxide and other sodium salts from alkaline high-level wastes are described together with initial results. Eight extraction mechanisms may be envisaged for transferring NaOH equivalents to an organic solvent by liquid-liquid extraction. Selectivity derives from principles of solvation, host-guest chemistry, and cation exchange. Initial results are presented on the synthesis and properties of new cage-functionalized macrocyclic hosts and fluorinated alcohol cation exchangers. Such compounds show promise toward reducing the overall waste volume by removal of bulk quantities of sodium salts.
Original language | English |
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Pages (from-to) | 114-132 |
Number of pages | 19 |
Journal | ACS Symposium Series |
Volume | 778 |
State | Published - 2001 |