苏皖地区凹凸棒石黏土的特征和应用发展方向

Development and Application of Palygorskite Clays from Jiangsu and Anhui Provinces

阐明了凹凸棒石晶体生长方式、不同类型的凹凸棒石黏土矿石微结构特征及其与生长方式之间的内在联系，凹凸棒石矿物学特性及其与晶体结构、晶体形貌的联系，凹凸棒石吸附性能、胶体性能的本质、凹凸棒石酸活化反应机制及其效应，凹凸棒石中不同类型的水脱除温度及其与晶体结构、形貌、比表面积、表面酸碱性质演变的关系。简述了凹凸棒石解聚分散、提纯纳米复合材料制备和应用研究进展，富白云石凹凸棒石黏土加工和应用研究进展。指明了苏皖地区不同类型凹凸棒石黏土矿石加工应用发展方向。

The growth pattern and the microstructure characteristics of different palygorskite clays from Jiangsu and Anhui provinces, China, as well as their relationship were represented. The mineralogy of palygorskite clays and the related crystal structure and morphology were described. The essence of adsorption and colloidal properties of palygorskite clays, and the mechanism and effect of acid activation were elucidated. The desorption temperature of different water in palygorskite clays and the corresponding evolution of crystal structure, morphology, specific surface area and surface acid-base properties were discussed. The development on the dispersion and purification of palygorskite clays was given, and the preparation and application of nano-composites based on palygorskite clays were introduced. In addition, the preparation and application of dolomite-rich palygorskite clays were also represented.