Successive uranium and thorium adsorption from Egyptian monazite by solvent impregnated foam |
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Authors: | A E M Hussein |
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Institution: | (1) Nuclear Materials Authority, Box 530, Maadi-Kattameya, Cairo, Egypt |
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Abstract: | The present work deals with uranium and thorium recovery from the Egyptian monazite sulfate leach liquor using the extraction
chromatography technique (solvent impregnated material), where tributylamine (TBA) and di-n-octylamine (DOA) solvents were impregnated onto foam uranium and thorium separate recovery. The calculated theoretical capacities
of the latter solvents were about 1.4 gU/g foam and 1.6 gTh/g foam, respectively. The attained uranium and thorium adsorption
efficiencies (using ion-exchange columnar technique) were about 75 and 70% of its theoretical capacities, respectively. Using
1 M NaCl–0.1 M H2SO4 and 2 M H2SO4 as eluent solutions for uranium and thorium from the loaded solvents impregnated foam gave 95.8 and 98.7% elution efficiencies,
respectively. |
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