中国非金属矿工业导刊Issue(2)：32-34,47,4.
不同酸处理对凹凸棒石粘土理化性能的影响
Effects of Acid Treatment With Various Types on Physicochemical of Attapulgite Clay
徐继香 1汪琴 2王爱勤1
作者信息
- 1. 中国科学院兰州化学物理研究所盱眙凹土应用技术研发中心,甘肃,兰州,730000
- 2. 中国科学院研究生院,北京,100080
- 折叠
摘要
Abstract
A series of attapulgite samples were prepared by acid activation with 1％ HCl, H2SO4, H3PO4, CH3COOH, HClO4 and H4P2O7 solutions at solid to liquid ratio of 1:10. The effects of different acids on structure and properties of attapulgite were investigated using infrared spectroscopy (IR), the chemical composition analysis, nitrogen adsorption-desorption(BET), steady shear flow and bleaching experiments. The results showed that acid treatment leads to the removal of the Na+、 Mg2+ and Ca2+ cations. The specific surface area, pore volume of attapulgite samples decreased after treatment with HC1, CH3COOH, H3PO4 and HClO4 solutions and the mean pore size increased. The shear viscosity of attapulgite suspension decreased after acid activation. Attapulgite activated with 1 ％ H2SO4 give the highest bleaching capacity for colza oil.关键词
凹凸棒石粘土/酸处理/比表面积/流变/脱色力Key words
attapulgite clay/ acid treatment/ special surface area/ rheology/ bleaching分类
天文与地球科学引用本文复制引用
徐继香,汪琴,王爱勤..不同酸处理对凹凸棒石粘土理化性能的影响[J].中国非金属矿工业导刊,2011,(2):32-34,47,4.
