Kaolin has high whiteness, soft quality, easy to disperse suspended in water, good plasticity and high cohesiveness, 

excellent electrical insulation performance; It has good acid solubility, low cation exchange capacity, good fire re

sistance and other physical and chemical properties. So kaolin has become paper making, ceramics, rubber, chemical, 

paint, medicine and national defense and dozens of industries necessary mineral raw materials. There are also report

s of kaolin being used in Japan instead of steel to make cutting tools, lathe bits and internal-combustion engine cas

ings. Especially in recent years, the rapid development of modern science and technology makes the application of kao

-lin more extensive. Some high-tech fields begin to use kaolin as a new material. Even the high-temperature porcelain 

parts of atomic reactor, space shuttle and spacecraft are made of kaolin.

Calcined kaolin for paper making is made from coal measure kaolin by dressing, ultrafine grinding and calcination. It 

has the characteristics of hexagonal sheet structure, good porosity, reasonable particle size distribution range and 

good light scattering. At the same time, because of high whiteness, low wear value, good oil absorption, is an excell

-ent paint pigment, currently in the paper industry is mainly used for coating surface. It has the characteristics of 

reducing production cost, improving paper performance, improving ink absorption rate, good compatibility with other 

components and high viscosity.