Impacts of Impurity Removal Chemical Pretreatment Procedures on the Composition and Adsorption Properties of Bentonites-Reference-Cited by-同舟云学术

Impacts of Impurity Removal Chemical Pretreatment Procedures on the Composition and Adsorption Properties of Bentonites

Published:2024-07-23 Issue:8 Volume:14 Page:736
ISSN:2075-163X
Container-title:Minerals
language:en
Short-container-title:Minerals

Author:

Koroleva Tatiana¹²^ORCID,Krupskaya Victoria¹²^ORCID,Tyupina Ekaterina¹³^ORCID,Morozov Ivan¹^ORCID,Kozlov Pavel³^ORCID,Pokidko Boris¹^ORCID,Zakusin Sergey¹²^ORCID,Zaitseva Tatiana⁴^ORCID

Affiliation:

1. Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Russian Academy of Science (IGEM RAS), Staromonetny Per. 35, 119017 Moscow, Russia

2. Geological Faculty, M. Lomonosov Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia

3. Department of High Energy Chemistry and Radioecology, D. Mendeleyev University of Chemical Technology of Russia, Miusskaya Sq. 9, 125047 Moscow, Russia

4. Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, 199034 St. Petersburg, Russia

Abstract

This work is based on a detailed study of samples from three industrial bentonite deposits in Russia (10th Khutor, Zyryanskoe) and Kazakhstan (Taganskoe). The samples of the listed bentonites were undergoing stage-by-stage purification from carbonates, organic matter, and non-clay iron-bearing phase procedures. The conducted research revealed changes in the composition of bentonites already at the first stage of purification, which, however, were not noted for all bentonites, as well as a change in the forms of Fe in smectite structure. The latter is probably associated with changes in cis- and trans-vacant positions. Sorption characteristics with respect to 137Cs are determined using the localization and charges in the smectite layer and the slight changes during purification, along with the specific surface area indicators.

Funder

Russian Science Foundation

Institute of Precambrian Geology and Geochronology RAS

Publisher

MDPI AG

Link

https://www.mdpi.com/2075-163X/14/8/736/pdf

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