Value-added products from modified kaolins: new chemical routes to new markets

摘要

Chemical treatments of kaolins to produce nanocry stalline, or"X-ray amorphous", stable aluminosilicates with variable-but reproducible-types of micro-and meso-porosity have been developed. These materials show cation exchange capacities and surface area values significantly higher (ranging from 10X to 100X) than kaolin and show good acid resistance to pH approx 3.0.