The mechanism of uranium adsorption on Resin 508 and isoelectric point of the resin
- 1. East China Normal Univ., Shanghai, SH (China)
Description
The adsorption process of uranium by Resin 508 at the solid-liquid interface was investigated and the mechanism of uranium adsorption including adsorption dynamics, adsorption thermodynamics and isoelectric point of resin was studied. The results are as follows: The maximum of uranium adsorption is attained at pH5-7; Uranium adsorption isotherm by Resin 508 in experimental conditions agrees with Langmuir's adsorption isotherm, the maximum of uranium adsorbed (Vm) is 716 mg U/g-dried resin; The adsorption of uranium by Resin 508 is an endothermic reaction and ΔH = 16.87 kJ/mol; The exchange-adsorption rate is mainly controlled by liquid film diffusion; The isoelectric points of Resin 508 before and after uranium adsorption are found to be pH7.5 and pH5.7 respectively. It is a specific adsorption for uranium
Additional details
Publishing Information
- Journal Title
- Nuclear Techniques
- Journal Volume
- 13
- Journal Issue
- 5
- Series
- Nucl. Tech.
- Journal Page Range
- 269-273
- ISSN
- 0253-3219
- CODEN
- NUTED
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 22071613
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- ADSORPTION; ADSORPTION ISOTHERMS; DIFFUSION; ELECTRIC POTENTIAL; ELECTRICAL PROPERTIES; INTERFACES; PH VALUE; RESINS; TEMPERATURE DEPENDENCE; URANIUM
- Descriptors DEC
- ACTINIDES; ELEMENTS; METALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYMERS