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Separation Science and Technology Volume 56, 2021 - Issue 2
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Adsorption

Recovery of rhenium from sulfuric acid solution by TOPO-impregnated silica sorbents

Alexandr G. KasikovTananaev Institute of Chemistry - Subdivision of the Federal Research Centre, “Kola Science Centre of the Russian Academy of Sciences”, Apatity, Russia
,
Elena A. ShchelokovaTananaev Institute of Chemistry - Subdivision of the Federal Research Centre, “Kola Science Centre of the Russian Academy of Sciences”, Apatity, RussiaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-3374-6856
ORCID Icon &
Anna M. DvornikovaTananaev Institute of Chemistry - Subdivision of the Federal Research Centre, “Kola Science Centre of the Russian Academy of Sciences”, Apatity, Russia
Pages 242-251 | Received 19 Sep 2019, Accepted 11 Jan 2020, Published online: 23 Jan 2020
 
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ABSTRACT

A new solvent impregnated sorbent containing trioctylphosphine oxide was prepared using carriers from mesoporous silica, obtained by hydrometallurgical processing of Kola Mining-Metallurgical Company (Kola MMC, Russia) dump slag waste. The characterization of sorbent was performed using the SEM, FTIR and TGA techniques. Under static conditions, an sorption of rhenium onto impregnated sorbent in sulfuric acid solution was studied in a batch system with respect to contact time, sulfuric acid concentration, solid to liquid ratio and initial rhenium concentration. The recovery of rhenium from a sulfuric acid wash solution of the Kola MMC was demonstrated.

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