Mica is a rock-forming mineral, usually in the form of pseudo-hexagonal or rhombic plate, flake, and columnar crystals. The color varies with the chemical composition, and becomes darker mainly with the increase of Fe content. The characteristics of mica are insulation, high temperature resistance, luster, stable physical and chemical properties, good heat insulation, elasticity and toughness. The most commonly used in industry is muscovite, followed by phlogopite. It is widely used in building materials industry, fire protection industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigments and other chemical industries.
Mica processing and production process
Mica ore flotation is used to recover mica and fine-grained mica below 14 mesh in pegmatite and mica schist. In my country, the flotation of mica ore has not been applied in production. The winnowing method is suitable for areas lacking water sources and has been used in actual production.
1.Ore beneficiation, flotation and winnowing of mica.
2.①Mica and gangue are sorted by the difference in surface physical and chemical properties. ②Crushing→screening and classification→wind selection.
3.①The ore is crushed and ground to dissociate the mica monomer. Under the action of the agent, the mica becomes a foam product and is separated from the gangue. ②After the ore is crushed, the mica basically forms flakes, while the gangue minerals feldspar and quartz are in the form of massive particles.
4.Unpacked as finished product
Mica Grinding Mill
The most commonly used in industry is muscovite, followed by phlogopite. It is widely used in building materials industry, fire protection industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigments and other chemical industries. In the industry, flotation and air separation are used, and MTW European Trapezoid Mill and mill are used for crushing and grinding.
Investment prospects
Mica paper market The machinery sector has long determined that the mica insulation material used in motors mainly uses mica paper instead of mica flakes. In 1987, my country’s newly added power generation equipment capacity was 9.2 million kilowatts. Usually, 460 tons of mica paper are needed to calculate the consumption of 5 tons of mica paper for the newly added 100,000 kilowatts of power generation capacity. my country’s energy industry will be the focus of development in the future. During the “Seventh Five-Year Plan” period, it is planned to reach the capacity of generating sets with an annual output of 10 million kilowatts. The annual demand for mica paper is not less than 500 tons, and the total demand is more than 2,500 tons. In addition, in 1987, my country’s installed capacity of power generation has reached 100 million kilowatts. If the replacement and maintenance of 20-30% are considered, the mica paper required for maintenance is also considerable. In addition, there are many industrial and household appliances that also require a large amount of insulating cardboard and other products. The domestic mica paper market has a bright future. The mica powder market requires about 15,000 tons of mica powder per year for the production of electric welding electrodes in China, 140,000 tons of mica powder for linoleum paper, 2,000 tons of mica powder for fire fighting equipment, and the newly developed mica powder application field. The demand for mica powder is likely to grow further.
Main uses of mica
The most commonly used in industry is muscovite, followed by phlogopite. It is widely used in building materials industry, fire protection industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigments and other chemical industries. Ultrafine mica powder is used as functional filler for plastics, coatings, paints, rubbers, etc., which can improve its mechanical strength, enhance toughness, adhesion, aging resistance and corrosion resistance. In addition to its extremely high electrical insulation, acid and alkali corrosion resistance, elasticity, toughness and sliding properties, heat and sound insulation, and small thermal expansion coefficient, it is also the first to introduce smooth surface, large diameter-to-thickness ratio, regular shape, and attachment. Features such as strong focus.
In industry, its insulation and heat resistance, as well as acid resistance, alkali resistance, compression resistance and peeling resistance are mainly used as insulating materials for electrical equipment and electrical equipment; secondly, it is used to manufacture steam boilers and smelting furnaces. Windows and mechanical parts. Mica crushed and mica powder can be processed into mica paper, and can also replace mica sheet to manufacture insulating material with low cost and uniform thickness. At the same time, mica also has medicinal functions, which can cause chills and fever due to wind evil, like sitting on a boat and dizzy.
Related Equipment
TGM Trapezium Mill
Overview Super Pressure Trapezium Grinder Mill is designed by our experts on the basis of a long time’s study of High Pressure Suspension Grinding Mill, introducing the advanced technolo...
European Hammer Mills
Overview European Hammer Mills are widely used in metallurgy, mining, chemical, cement, coal gangue, construction, sand, refractory material, ceramic and other industry, engaged in breaking an...
Raymond Mill
Overview Raymond Mill is used to grind barite, calcite, potash feldspar, talcum, marble, limestone, ceram and slag below scale 7 of Moth’s hardness and 280-odd sorts of non-inflammable a...
Ultra Fine Vertical Grinding Mill
Overview LUM-Series Ultra fine vertical grinding mill is an advanced mill which combining our company’ several years of mill-producing experiences, It is designed and researched based on verti...
Micro Powder Grinding Mill
Overview Micro Powder Grinding Mill is widely used in making fine powder or micro powder, and the raw materials should be non-inflammable and non-explosive under the Moh’s hardness less than 6...