Separation and Purification of Montmorillonite from Raw Bentonite Using a Simple Hydrothermal Treatment

Herein, a simple hydrothermal treatment method is proposed to separate high-purity montmorillonite from natural clay stone, bentonite, which contains various associated minerals. Specifically, a suspension of bentonite is placed in a closed vessel and heated to temperatures above approximately 100 °...

Full description

Saved in:

Bibliographic Details
Published in:	Chemistry letters Vol. 52; no. 3; pp. 132 - 135
Main Authors:	Yoshikawa, Ema, Yokoyama, Shingo, Watanabe, Yasutaka
Format:	Journal Article
Language:	English Japanese
Published:	Tokyo The Chemical Society of Japan 05-03-2023 Chemical Society of Japan
Subjects:	Bentonite Clay minerals Hydrothermal treatment Montmorillonite Purity Montmorillonite Bentonite Purification
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Herein, a simple hydrothermal treatment method is proposed to separate high-purity montmorillonite from natural clay stone, bentonite, which contains various associated minerals. Specifically, a suspension of bentonite is placed in a closed vessel and heated to temperatures above approximately 100 °C. High-purity montmorillonite is collected by recovering the gel fabricated by heating. Evidently, the purity and collectability of montmorillonite is higher with higher temperatures and longer periods of treatment.
ISSN:	0366-7022 1348-0715
DOI:	10.1246/cl.220499