Uranium(VI) recovery from acidic leach liquor using manganese oxide coated zeolite (MOCZ) modified with amine

被引：9

作者：

Yousef, L. A. ^{[1
]}

Bakry, A. R. ^{[1
]}

Ahmad, A. A. ^{[1
]}

机构：

[1] Nucl Mat Author, Cairo, Egypt

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2020年 / 324卷 / 01期

关键词：

MOCZ; TOA; Uranium(VI); Kinetic; Equilibrium; Adsorption; Elution; ION-EXCHANGE; ADSORPTION-ISOTHERMS; AQUEOUS-SOLUTIONS; VI ADSORPTION; REMOVAL; EQUILIBRIUM; SORPTION; THORIUM; ALUMINOSILICATES; THERMODYNAMICS;

D O I：

10.1007/s10967-020-07042-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 H2SO4. 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.

引用

页码：409 / 421

页数：13

共 46 条

[1] Uranium(VI) recovery from acidic leach liquor using manganese oxide coated zeolite (MOCZ) modified with amine
L. A. Yousef
A. R. Bakry
A. A. Ahmad
Journal of Radioanalytical and Nuclear Chemistry, 2020, 324 : 409 - 421
[2] Extraction of uranium(VI) from sulfate leach liquor after iron removal using manganese oxide coated zeolite
Nouh, El Said A.
Amin, Mustafa
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[3] Recovery of Uranium(VI) from Sulfate Leach Liquor using Modified Duolite
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[4] Adsorption of uranium (VI) from acidic leach liquor using Amberlite IRA-400 impregnated with amines
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ANALYTICAL CHEMISTRY LETTERS, 2021, 11 (02) : 230 - 254
[5] Uranium(VI) recovery from its leach liquor using zirconium molybdophosphate composite: kinetic, equilibrium and thermodynamic studies
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2020, 323 (01) : 549 - 556
[6] Uranium(VI) recovery from its leach liquor using zirconium molybdophosphate composite: kinetic, equilibrium and thermodynamic studies
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Journal of Radioanalytical and Nuclear Chemistry, 2020, 323 : 549 - 556
[7] Removal of Uranium (VI) by Fixed Bed Ion-exchange Column Using Natural Zeolite Coated with Manganese Oxide
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CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2009, 17 (04) : 585 - 593
[8] Recovery of Uranium from Sulfate Leach Liquor Using Natural Orange Peel Extractant
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[9] Removal of uranium(VI) from aqueous solutions by manganese oxide coated zeolite: discussion of adsorption isotherms and pH effect
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Zou, Weihua
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JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2007, 93 (03) : 127 - 143
[10] Recovery of Uranium from Sulfate Leach Liquor Using Natural Orange Peel Extractant
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Radiochemistry, 2021, 63 : 316 - 324

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