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Engineering and Technology OPEN ACCESS

Physicochemical Analysis of Bentonite Used in The Preparation of Catalysts for Methanol and Dimethyl Ether Synthesis

Normurot Fayzullaev
DSc, Professor, Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Jasur Shukurov
PhD, Assistant, Department of Polymer Chemistry and Chemical Technology, Institute of Biochemistry, Samarkand State University named after Sharof Rashidov, Republic of Uzbekistan, Samarkand, Uzbekistan
Aziz Husenov
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Kamola Ziyadulloyeva
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Damir Kho‘jakulov
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Durdona Abdugapparova
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Dilshoda Kosimova
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
Qudratov Yosinbek
Department of Polymer Chemistry and Chemical Technology, Samarkand State University named after Sharof Rashidov, Samarkand, Uzbekistan
DOI Crossref DOI 10.37547/tajet/Volume08Issue04-15
tajet 2026
VOL. 8 / NO. 4 APRIL
FULL TEXT PP. 171-191
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VOLUME 8
ISSUE 4
YEAR 2026
PAGES 171-191
RESEARCH OVERVIEW

Abstract

The article presents a method of purification of obtaining betonies clay for use in catalysis. It was found that the cleaning process includes the stages of centrifugation, drying and mechanical activation. Clay cleaning frees it from impurities and increases the proportion of the useful component - the sorption-active mineral montmorillonite. The porosity of the BET method was determined (measurement of specific surface area and porosity). The accuracy and standardization of the method for determining the adsorption activity have been carried out. An exponential dependence of the adsorption activity on the weight of the sample, (1.0 g), sorption time (35 min) and the equilibrium concentration of the dye solution (39 ml 0.15%) were established. The physicochemical and textural properties of betonies clay for the use of catalysis have been studied. It was found that bentonite clay for use in catalysis is a light gray powder, odorless, practically insoluble in water and organic solvents, with a particle size of less than 0.3 mm.

RESEARCH TOPICS

Keywords

Betonies clay specific surface area porosity

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