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

被引：17

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.

引用

页数：8

共 39 条

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