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- Title
Use of Modified Sorbents Based on Activated Carbon BAU-A for the Extraction of Nonferrous Metals from Aqueous Solutions.
- Authors
Gorbacheva, M. P.; Krasavina, E. P.; Mizina, L. V.; Rumer, I. A.; Krapukhin, V. B.; Kulemin, V. V.; Lavrikov, V. A.; Kulyukhin, S. A.
- Abstract
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+.
- Subjects
ACTIVATED carbon; NONFERROUS metals; AQUEOUS solutions; NITRATES; ATMOSPHERIC temperature
- Publication
Theoretical Foundations of Chemical Engineering, 2018, Vol 52, Issue 4, p725
- ISSN
0040-5795
- Publication type
Article
- DOI
10.1134/S0040579518040115