Thermal treatment of mechanochemically activated kaolinite

被引：107

作者：

Horváth, E

Frost, RL

Makó, É

Kristóf, J

Cseh, T

机构：

[1] Queensland Univ Technol, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia

[2] Univ Veszprem, Dept Environm Engn & Chem Technol, H-8201 Veszprem, Hungary

[3] Univ Veszprem, Dept Silicate & Mat Engn, H-8201 Veszprem, Hungary

[4] Univ Veszprem, Dept Analyt Chem, H-8201 Veszprem, Hungary

来源：

THERMOCHIMICA ACTA | 2003年 / 404卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

kaolinite; mechanochemical activation; differential thermogravimetric analysis;

D O I：

10.1016/S0040-6031(03)00184-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The mechanochemical activation of a high defect kaolinite has been studied using a combination of high-resolution thermoggravimetry and DRIFT spectroscopy. The effect of grinding causes a decrease in the dehydroxylation temperature and an increase in the amount of adsorbed/coordinated water. The temperature of dehydration also increases with grinding time. It is proposed that this dehydroxylation occurs through a homogenous process involving proton transfer through point heating. The amount of adsorbed water decreases with the increase in temperature of the thermal treatment. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：227 / 234

页数：8

共 32 条

[1] MECHANOCHEMICAL EFFECTS IN KAOLINITE GRINDING .1. TEXTURAL AND PHYSICOCHEMICAL ASPECTS [J].