Coated impregnated resin containing Alamine 336 for the selective adsorption of ReO4- from sulfuric acid solutions

被引：18
作者：
Guo, Xueyi [1 ,2 ]
Ma, Zhongchen [1 ,2 ]
Li, Dong [1 ,2 ]
Yu, Dawei [1 ,2 ]
机构：
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China
[2] Natl & Reg Joint Engn Res Ctr Nonferrous Met Reso, Changsha 410083, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 297卷
基金：
中国国家自然科学基金;
关键词：
Adsorption; ReO4-; Coated solvent impregnated resins; Alamine; 336; SOLVENT-EXTRACTION; HYDROCHLORIC-ACID; AQUEOUS-SOLUTIONS; FLUE-DUST; RHENIUM; RECOVERY; SEPARATION; RE(VII); CONTAMINANTS; COMPOSITE;
D O I：
10.1016/j.molliq.2019.111901
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A comprehensive study on the adsorption of ReO4- by coated impregnated resins containing Alamine 336 (336-CSIRs) from synthetic sulfuric acid solutions was conducted. The effects of sulfuric acidity, adsorption kinetics with varying initial concentrations of ReO4-, and the adsorption equilibrium with various temperatures were investigated. Low sulfuric acidity was more conducive to the adsorption of ReO4-. The adsorption process could be described by the pseudo-second-order kinetic model with equilibrium reached within 6 h, and fit well with Langmuir equilibrium model with the saturation adsorption capacity of 120.04 mg g(-1). Excellent selective adsorption of ReO4- onto 336-CSIRs was observed with the concentration of sulfuric acid from 0.5 to 4.0 mol L-1. 336-CSIRs showed excellent stability and 99.92% of rhenium was selectively adsorbed by 336-CSIRs from industrial waste water. (C) 2019 Elsevier B.V. All rights reserved.
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页数：8
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