Journal of Siberian Federal University. Chemistry / Comparative Analysis of Bentonite Clay from Deposits of the Republic of Khakassia “10th Khutor” and “Kaibalskoe‑2”

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2023 16 (3)
Authors
Golubkov, Viktor A.; Gorenkova, Galina A.; Vorozhtsov, Evgeny P.; Bespalova, Mariya A.; Bortnikov, Sergey V.; Taran, Oxana P.
Contact information
Golubkov, Viktor A.: Institute of Chemistry and Chemical Technology SB RAS Federal Research Center “Krasnoyarsk Scientific Center of the SB RAS” Krasnoyarsk, Russian Federation; ; Gorenkova, Galina A.: Katanov Khakass State University Abakan, Russian Federation; Vorozhtsov, Evgeny P.: Katanov Khakass State University Abakan, Russian Federation; Bespalova, Mariya A.: Katanov Khakass State University Abakan, Russian Federation; Bortnikov, Sergey V.: Katanov Khakass State University Abakan, Russian Federation; Taran, Oxana P.: Institute of Chemistry and Chemical Technology SB RA Federal Research Center “Krasnoyarsk Scientific Center of the SB RAS” Krasnoyarsk, Russian Federation
Keywords
industrial minerals; bentonite clay; montmorillonite; «10th Khutor» deposit; «Kaibalskoye‑2» deposit; X‑ray powder diffraction
Abstract

The comparative analysis of bentonite clay from deposits of the Republic of Khakassia “10th Khutor” and “Kaibalskoe‑2” was carried out. The composition of the rock- forming oxides of bentonite clay has been established by X‑ray fluorescence spectral analysis. The mineralogical composition was studied by powder X‑ray diffraction using full- profile analysis of diffraction patterns according to the Rietveld method for quantitative analysis of mineral content. Thermal stability was studied by the method of simultaneous thermal analysis. The cation exchange capacity and the composition of the exchange complex were determined. The main differences between the bentonites of the 10th Khutor and Kaibalskoye‑2 deposits are the content of montmorillonite (68.9 and 52.3 %), the composition and content of impurity minerals, structural and chemical features of montmorillonite. Montmorillonite from the Kaibalskoe‑2 deposit has a high degree of isomorphic substitution by iron in octahedral position

Pages
459–471
EDN
HLZVRI
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/151722