Effects of kaolinite layer expansion and impurities on the solid-state reaction of kaolinite

Shingo Machida; Ken-Ichi Katsumata; Atsuo Yasumori

doi:10.1039/d1ra07762g

Effects of kaolinite layer expansion and impurities on the solid-state reaction of kaolinite

RSC Adv. 2021 Nov 30;11(61):38473-38477. doi: 10.1039/d1ra07762g. eCollection 2021 Nov 29.

Authors

Shingo Machida¹, Ken-Ichi Katsumata¹, Atsuo Yasumori¹

Affiliation

¹ Department of Material Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science 6-3-1 Niijuku, Katsushika-ku Tokyo 125-8585 Japan [email protected].

Abstract

Expanded kaolinite without impurities was found to serve as a suitable raw material for the rapid formation of metastable CaAl₂Si₂O₈ with the suppression of byproduct formation. This was accomplished based on the solid-state reaction of the kaolinite with calcium carbonate promoted by mechanical grinding.