Mica is a rock-forming mineral, usually in the form of hexagonal or fake diamond plates, sheets, columnar crystal form. Colour changes with the chemical composition varies, mainly deepening with the increase of Fe content. Characteristics of mica are insulation, high temperature, shiny, stable physical and chemical properties, good thermal insulation, elasticity and toughness. The white mica is most used in industry, following is bronze mica. It is widely used in building materials industry, the fire industry, fire-extinguishing agent, welding, plastic, electrical insulation, paper, asphalt paper, rubber, pearlescent pigments and other chemical industries.
Mica processing production process
Mica ore uses flotation to recycle pegmatite and mica schist 14 mesh and fine-grained mica. In China, the production of mica ore by flotation has not yet been applied. Winnowing law applies to water-scarce areas, and it has been used in actual production.
Beneficiation, flotation mica and winnowing.
1. The physical and chemical properties of different surfaces were and gangue sorting. 2 Broken→ filter classification→ winnowing sieve classification.
1. Stone by crushing, grinding mica for monomer dissociation, In the pharmaceutical effect, mica becomes foam products and isolates from gangue. 2. After crushing the ore, mica basically forms a thin sheet , and gangue mineral such as feldspar and quartz form ore massive particles.
Packaging for the finished product.
The white mica is most used in industry, following is bronze mica. It is widely used in building materials industry, the fire industry, fire-extinguishing agent, welding, plastic, electrical insulation, paper, asphalt paper, rubber, pearlescent pigments and other chemical industries. Flotation and winnowing are used in this industry, and the crusher and grinding mill are also used for crushing and grinding.
Widely used in grinding and processing of metallurgy, building plastics, fillers, cosmetics, chemicals and other industries......
Widely used in paint, paper, paint, rubber, plastics, fillers, cosmetics, chemicals and other industries.
Machinery sector of mica paper market has been used to determine that mica insulation materials are mainly used for mica paper instead of mica flakes in the motor industry. In 1987 China's new power plant capacity is 9.2 million kilowatts, usually by additional 100,000 kilowatts of generating capacity, which needs five tons of mica paper consumption calculation, totally needing about 460 tons of mica paper. Our future focus is development of energy industry, "during the seventh-five- year" period, we plans to reach an annual output of 10 million kilowatts of generating units capacity, mica paper demand per year is not less than 500 tons, totally more than 2,500 tons. In addition, in 1987 the installed capacity of power generation reached 100 million kilowatts, if by 20-30% considering replacement service, the mica paper required for maintenance is also considerable. In addition, there are numerous insulating cardboard and other products used in many other industry and appliances. Mica paper in domestic market is very promising. Mica national welding market's annually needs about 15,000 tons mica powder, felt paper market needs about 140,000 tons, and fire equipment needs about 2,000 tons. Adding plus new pioneering mica applications, based on the development trend, mica's requirements may grow further and quickly.
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