Acid-activated Sodium Bentonite and Kaolin Clay: Comparative Study by Physicochemical Properties.
Comb Chem High Throughput Screen
; 23(5): 433-445, 2020.
Article
em En
| MEDLINE
| ID: mdl-32160844
ABSTRACT
AIMS AND OBJECTIVE:
This paper aims to reveal the useful industrial aspects of kandite and montmorillonite group of clays using as a catalyst after acid activation. A comparative study of modified characteristics of clay samples has been explored based on industrial requirements. MATERIALS ANDMETHODS:
In this study sodium bentonite and kaolin clay have been focused. The modified characteristics of clay samples are investigated by characterization methods of FT-IR, XRD, SEM/EDAX, TGA and DSC before and after treated with 4M of Hydrochloric acid. Clay samples were refluxed at 105ºC and calcined at 500ºC consecutively for 3 hours at room temperature.RESULTS:
Maximum crystalline size 104.02 nm has been evaluated for acid-activated sodium bentonite. Alkyl halides compounds have a strong band position for all samples and have more extent on acid activation. The small numbers of manganese particles have been noticed in the acidactivated samples. 14% of decrement and 61.02% of increment of aluminates have been found respectively for acid-activated kaolin and acid-activated sodium bentonite.CONCLUSION:
The novelty of this study is about sodium bentonite characterization and the results show the prominent behaviour with structural, elemental, morphological, and thermal analysis. Acid-activated kaolin sample has less effect in comparison with acid-activated sodium bentonite. As the removal of the hydroxyl group of compounds has been reported through FT-IR and XRD analysis also some other industries like ceramic and paper industries may have accepted these types of modified minerals for special production with a simple process.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Sódio
/
Bentonita
/
Argila
/
Ácido Clorídrico
/
Caulim
Idioma:
En
Revista:
Comb Chem High Throughput Screen
Assunto da revista:
BIOLOGIA MOLECULAR
/
QUIMICA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Índia