The role of calcined kaolin

Calcined kaolin is a kind of inorganic non-metallic mixture, which can also be used in refractories. Calcined kaolin is put into kaolin Rotary kiln for a certain temperature and time, and then calcined to meet user requirements. So what are the functions of calcining kaolin?

The calcined kaolin has performance advantages such as high activity, high whiteness, high dispersion, and high coverage. In addition to its non-toxic, radiation free, and pollution-free environmental protection, it is widely used in various industries such as coatings, papermaking, rubber, paint, environmental protection, and food.

1. Used for pesticides and petrochemicals: Due to the fine pores on the surface of calcined kaolin particles, they have great adsorption properties and can be used in pharmaceuticals and pesticides; Due to its neutral nature and high silicon content, the product can be used for the production of silicon fertilizers and feed additives; It can be used as a catalyst in refining to improve the quality of oil products.

2. Used for paints and coatings: Calcined kaolin has the characteristics of low cost, high whiteness, and strong covering ability. It can serve as a filler and color substitute in paint production, and can also serve as a filling skeleton. It can replace some titanium dioxide for exterior wall coatings, reducing costs.

3. Used for plastics: It can improve the strength, whiteness, and electrical insulation of products such as greenhouse films, plastic films, cables, and PVC pipes (plates). It also has the function of improving the scattering transmittance in plastic films, blocking infrared rays, and reducing costs as a volume filler.

4. For papermaking: The use of calcined kaolin can increase the pore volume, loose thickness, and smoothness of the coating, improve the opacity and elasticity of the paper, improve ink adsorption, glossiness, and reduce printing spots.

Kaolin Rotary kiln is a common equipment for calcining kaolin. The calcination effect is achieved through heat exchange generated by fuel combustion. Kaolin Rotary kiln has the advantages of uniform heating of materials, high whiteness of products, stable quality, low energy consumption, large output, simple operation, etc. It is widely used for calcining kaolin and is welcomed by users.