Adsorption of Uranium from Sulfate Medium Using a Synthetic Polymer; Kinetic Characteristics

被引:8
作者
El-Sheikh, A. S. [1 ]
Haggag, E. A. [1 ]
Abd El-Rahman, N. R. [2 ]
机构
[1] Nucl Mat Author, Cairo 11742, Egypt
[2] Egyptian Petr Res Inst, Petrochem Dept, Cairo 11727, Egypt
关键词
polyurethane manufacture; uranium adsorption; ATOMIC-ABSORPTION-SPECTROMETRY; SOLID-PHASE EXTRACTION; TRACE HEAVY-METALS; ONLINE PRECONCENTRATION; ENVIRONMENTAL-SAMPLES; AQUEOUS-SOLUTIONS; WASTE-WATER; SEPARATION; REMOVAL; SILICA;
D O I
10.1134/S1066362220040074
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Polyurethane was prepared from toluene diisocyanate (TDI) and triethanolamine esters. The equilibrium and kinetic characteristics of the uranium sorption onto polyurethane were determined. The adsorption factors were optimized. The adsorption capacity for uranium reaches 70 mg/g and agrees with the value obtained by fitting with the Langmuir isotherm (75 mg/g). The adsorption process follows pseudo-second-order rate equation.
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页码:499 / 510
页数:12
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