Ring-size and substituent effects in the solvent extraction of alkali metal nitrates by crown ethers in 1,2-dichloroethane and 1-octanol
- Oak Ridge National Lab., TN (United States)
The extraction of alkali metal nitrate salts by solutions of crown ethers in each of the two diluents 1,2-dichloroethane and 1-octanol has been surveyed. The crown ethers include 18-crown-6, 21-crown-7, and 24-crown-8 ethers bearing cyclohexano, benzo, t-alkylbenzo, and/or furano substituents. The extraction efficiencies of the different crown ethers are examined in terms of ring-size, substituent, and solvent effects. Partition ratios for the crown ethers between water and either 1,2-dichloroethane or 1-octanol are discussed. The extraction selectivities, expressed as the separation factor for cesium over sodium, are examined in relation to crown ether structure. 62 refs., 5 figs., 4 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 422071
- Journal Information:
- Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 6 Vol. 14; ISSN 0736-6299; ISSN SEIEDB
- Country of Publication:
- United States
- Language:
- English
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