Introduction to kaolin

I. Overview of kaolin

Kaolin is a common and important clay mineral in nature, which is composed of feldspar or other silicate minerals in igneous and metamorphic rocks in an acidic medium of scarce alkaline and alkaline metal.

Kaolin is a non-metallic mineral, which is a kind of clay and clay rock dominated by kaolinite clay minerals. Because it is white and delicate, it is also called dolomite.

Kaolin is soft soil with good plasticity, adhesion and fire resistance.

kaolin

Second, the classification of kaolin:

1, hard kaolin: hard, no plasticity, after crushing and grinding with plasticity;

2. Soft kaolin: soft, strong plasticity, sand mass fraction <50%;

3. Sandy kaolin: the material is soft, the plasticity is weak, and the sand mass fraction >50%.

Third, the use of kaolin:

1. Kaolin industrial use

Kaolin has become a mineral material necessary for dozens of industries, including paper, ceramics, rubber, chemicals, coatings, medicine and national defense.

The ceramic industry is an industry with an earlier application of kaolin and a large amount of use. Kaolin has a certain degree of plasticity, adhesion, suspension and separation, so it is easy to form in the ceramic industry.

2. Kaolin chemical decoration category application

In cosmetic terms, kaolin is often used on masks, it is able to absorb the oil and waste of the skin, clean the skin to remove dirt, and calm and soothe the fragile skin . Minerals from natural mud replenish lost water and nutrients, equalizing oil production and making the skin more lubricated and elastic.

3. Other uses of kaolin

(1) Paper coatings can replace local expensive titanium dioxide;

(2) Paint, water-based latex coating;

(3) Industrial plastic functional fillers, inks, food, drugs, chemical fillers, etc.;

(4) High whiteness high-grade porcelain and special ceramics.