Understand the 16 major application fields and characteristics of illite
Illite is a potassium-rich 2:1-type dioctahedral silicate mica-type clay mineral with missing interlayers, high content of potassium and aluminum, low iron, fine, and good corrosion resistance and resistance. It has excellent physical and chemical properties such as abrasiveness, fluidity, absorption and heat resistance, and is widely used in chemical fertilizers, rubber and plastics, cosmetics, environmental protection, soil conditioning, ceramics, molecular sieves, construction, papermaking, medicine, food and other fields.
1. Fertilizer industry
(1) Potash fertilizer
(2) New granular fertilizer
2. Plastics and rubber industry
Currently, plastic fillers have attracted widespread attention because of their low temperature, high thermal stability, flame retardancy, and good mechanical strength.
3. Super absorbent composite material
Illite and acrylamide can be used as raw materials to synthesize hybrid materials with adsorption capacity. This composite material not only has good adsorption performance, but also enhances the compatibility with the environment.
4. Cosmetics
Illite has a large cation exchange capacity and small particle size, so it can be used as a cosmetic filler. Illite in cosmetics can absorb skin waste and toxins. Illite can be anti-bacterial, non-toxic and other properties, can reflect ultraviolet rays, so it can play a role in anti-ultraviolet.
5. Environmental protection
With the development of industry, the pollution of soil and water bodies has become more and more serious, and the discharge of heavy metal pollutants in the nuclear industry, especially the pollution of radioisotopes, has become increasingly significant, posing a serious threat to the survival of human beings.
6. Soil conditioner
Illite can also be used as a component of clay minerals in some acidic soils. Illite reacts with NaF solution with pH=4.7. This reaction can improve these acidic soils and increase crop yields.
7. Ceramics
In ancient times, illite was the main natural raw material for making pottery. In the production process of ceramics, the content of clay minerals will have a significant impact on the quality of ceramics. This is because illite is rich in potassium, so the increase in illite content will reduce the melting point of the product, reduce water absorption, and reduce the glass phase. ratio increased.
8. Molecular sieve
In industry, illite is mainly used as adsorbent, catalyst and ion exchanger, in addition, illite also has some applications in solar energy conversion and photochemistry.
9. Construction industry
Illite ore is rich in aluminum, which increases the toughness of the product; it is also rich in potassium, which reduces the temperature at which it is calcined during the preparation of porcelain materials, thereby reducing energy consumption. Bricks fired with illite have better thermal insulation effect and lower price.
10. Paper industry
Illite has good absorption, moderate covering ability and transparency, so it can enhance the effect of use.
11. Medicine
Protein, DNA, etc. can be adsorbed by illite, so illite can be used as a carrier of genes in clinical treatment. Illite can be combined with proteins to form complexes into the organism, and then the proteins will be released under the appropriate environment, so as to achieve the purpose of treating diseases.
12. Flame retardant materials
Illite has good chemical inertness, electrical insulation, heat insulation and other properties, and can be used in the production of flame retardant rubber cables, flame retardant textiles, and flame retardant power cables.
13. Synthetic diamond
Due to the good heat resistance, corrosion resistance, insulation and expansion of illite, a small amount of illite clay mineral can be added when preparing diamond.
14. Oil decolorization
Illite can discolor oil, and the illite after surface modification treatment has strong discoloration performance.
15. Oil drilling mud
The particles of illite are small so that it has good floating ability, good heat resistance and wear resistance, and can be used in the process of drilling wells.
16. Food field
Because the far-infrared rays emitted by natural illite powder can decompose or remove the odor released by various foods, and at the same time can activate the water molecules in the food to keep fresh and prevent oxidation, so the deterioration of the food can be avoided.