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Recovery of Re(VII) from aqueous solutions with coated impregnated resins containing ionic liquid Aliquat 336
被引:19
作者:
Guo, Xueyi
[1
,2
]
Ma, Zhongchen
[1
,2
]
Li, Dong
[1
,2
]
Tian, Qianghua
[1
,2
]
Xu, Zhipeng
[1
,2
]
机构:
[1] Cent South Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
[2] Natl & Reg Joint Engn Res Ctr Nonferrous Met Reso, Changsha 410083, Hunan, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
Re(VII);
Recovery;
Coated impregnated resins;
Aliquat;
336;
HYDROCHLORIC-ACID;
RHENIUM;
ADSORPTION;
SEPARATION;
MOLYBDENUM;
EXTRACTION;
KINETICS;
CONTAMINANTS;
EQUILIBRIUM;
SORPTION;
D O I:
10.1016/j.hydromet.2019.105149
中图分类号:
TF [冶金工业];
学科分类号:
0806 ;
摘要:
Technological issues existed in the recovery of rhenium from industrial waste water terms with of low rhenium content and high sulfuric acidity. To solve the problem, coated solvent-impregnated resins containing ionic liquid Aliquat 336 (A336-CSIRs) were prepared. Aliquat 336 uniformly impregnated all pores of whole resin. The adsorption kinetic data fit well with pseudo-second-order mode, indicating that the adsorption was in the form of chemisorption. From adsorption isotherm, the adsorption data fit well with Langmuir model, and the saturation adsorption capacity of A336-CSIRs on Re(VII) was up to 73.76 mg/g. The adsorption process of A336-CSIRs for Re(VII) was exothermic and spontaneous in nature. PVA film could significantly enhance the stability of A336-CSIRs. Furthermore, 99.85% rhenium was recovered from industrial waste water with A336-CSIRs.
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页数:8
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