Use of Modified Sorbents Based on Activated Carbon BAU-A for the Extraction of Nonferrous Metals from Aqueous Solutions

被引：0
|
作者：
M. P. Gorbacheva
E. P. Krasavina
L. V. Mizina
I. A. Rumer
V. B. Krapukhin
V. V. Kulemin
V. A. Lavrikov
S. A. Kulyukhin
机构：
[1] Russian Academy of Sciences,Frumkin Institute of Physical Chemistry and Electrochemistry
来源：
Theoretical Foundations of Chemical Engineering | 2018年 / 52卷
关键词：
activated carbon; sorption; nonferrous metals;
D O I：
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中图分类号：
学科分类号：
摘要：
The sorption of some nonferrous metals (Cu, Ni, Zn, Pb) from aqueous solutions by granular sorbents based on activated carbon BAU-A has been studied. The surface modification of BAU-A has been conducted by exposing it to a nitrating atmosphere (NOx–air or HNO3 (vapors)–air) at a temperature of 90–110°C for 4 h and impregnating it with 10 wt % of triethanolamine (TEA), tetraethylenediamine (TEDA), or carbamide (CH4N2O). It has been found that modification of BAU-A leads to a decrease in the sorption capacity of this material with respect to Cu2+, Ni2+, and Zn2+ and an increase with respect to Pb2+.
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页码：725 / 729
页数：4
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