Adsorption and separation behaviors of Y(III) and Sr(II) in acid solution by a porous silica based adsorbent
Hao Wu, Taiga Kawamura, Seong-Yun Kim
Abstract
Aiming at selective adsorption and separation of Y(III) from the Y(III)–Sr(II) group in acid solution, a silica-based TODGA impregnated adsorbent [(TODGA+1-dodecanol)/SiO2–P–F600] has been prepared. Batch adsorption experiments were conducted under the effect of contact time, acid concentration, solution temperature, and adsorption capacity etc. Chromatography recovery of more than 90% Y(III) was successfully achieved under elution with 0.01 M DTPA solution in nitric acid adsorption system, and 0.1 M HCl solution in hydrochloride adsorption system, respectively.
Topics & Concepts
AdsorptionChemistryNitric acidElutionChromatographyPorosityHydrochlorideNuclear chemistrySilica gelDodecanolInorganic chemistryOrganic chemistryRadioactive element chemistry and processingChemical Synthesis and CharacterizationExtraction and Separation Processes