Uranium modified with amine

Manganese oxide coated zeolite modified with trioctyl amine (MOCZ/TOA) was tested for adsorption of uranium. Different experiments were performed to evaluate the optimum adsorption conditions; pH, dose, uranium concentration, temperature variation and contact time. Maximum adsorption capacity reache...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020-04, Vol.324 (1), p.409
Main Authors: Yousef, L. A, Bakry, A. R, Ahmad, A. A
Format: Article
Language:English
Subjects:
Adsorption
Amines
Liquors
Uranium
Zeolites
Online Access:Get full text
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Summary:Manganese oxide coated zeolite modified with trioctyl amine (MOCZ/TOA) was tested for adsorption of uranium. Different experiments were performed to evaluate the optimum adsorption conditions; pH, dose, uranium concentration, temperature variation and contact time. Maximum adsorption capacity reached 99 mg/g according to Langmuir model. The study of thermodynamic parameters showed that sorption process is non spontaneous, exothermic and random. Studies on process kinetics showed that the process obeys pseudo-second order model. Uranium desorption was accomplished using 0.3 M H.sub.2SO.sub.4. Optimum conditions were carried out for uranium recovery from sedimentary geologic sample from Gattar area, North Eastern Desert, Egypt. The final uranium precipitate was characterized by ICP-OES technique.
ISSN:0236-5731
DOI:10.1007/s10967-020-07042-7