Separation of strontium from yttrium nitrate solutions by solvent extraction with dicyclohexano-18-crown-6
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R.A. Kuznetsov
The extraction of strontium and yttrium by a 0.2 M solution of dicyclohexano-18-crown-6 (DCH18C6) in n-octanol from nitric acid solutions as well as from solutions of yttrium nitrate in nitric acid was studied. Increasing the nitric acid concentration within the 0.1-7 M range and yttrium nitrate concentration within the 0.1-2 M range considerably improves strontium extraction, increasing its distribution ratio up to 40. Meanwhile, the yttrium distribution ratio at these conditions does not exceed 0.05. High separation efficiency of strontium and yttrium at a high yttrium nitrate concentration allows considering DCH18C6 as a promising extractant for the process of n.c.a. 89Sr isolation from fast neutron irradiated yttrium targets.
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Articles in the same Issue
- Measurement of the thermal neutron capture cross section and resonance integral of Am-241
- Utilisation of a low power reactor for instrumental neutron activation analysis of 40 elements in coal
- Imaging plate characteristics of positron emitters: 11C, 13N, 15O, 18F and 38K
- A spectroscopic study of the hydrolysis, colloid formation and solubility of Np(IV)
- Effect of structure of N,N dialkyl amides on the extraction of U(VI) and Th(IV): a thermodynamic study
- Crown ether as size selective synergist in the solvent extraction of thorium(IV) and uranium(VI) with 3-phenyl-4-(4-fluorobenzoyl)-5-isoxazolone
- Separation of strontium from yttrium nitrate solutions by solvent extraction with dicyclohexano-18-crown-6
- Identification and characterization of sorbed lutetium species on 2-line ferrihydrite by sorption data modeling, TRLFS and EXAFS
