Talc is a hydrothermal alteration mineral. Magnesium-rich minerals often turn into talc by hydrothermal alteration, so talc is often called mineral illusion such as olivine, pyroxene, hornblende, and tremolite. Talc is a common silicate mineral that is very soft and has a slippery feel. It is generally in the form of a block, a blade, a fiber or a radial, and its color is white, grayish white, and it is colored in various colors due to other impurities. Hardness 1, specific gravity is 2.7 ~ 2.8. Talc has excellent lubricity, anti-adhesion, flow, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good hiding power, softness, good gloss, strong adsorption etc physical and chemical properties.
China’s current annual output of talc is about 2.45 million tons. The market demand is about 2.1 million tons. Therefore, in general, China’s talc is still in a situation of oversupply. In the future growth of China’s talc industry in two aspects: 1. to increase the added value of high-grade raw materials; 2. to expand the export or deep processing of low-end products. China is the world’s largest producer of white talc, but 80% of its products are exported to foreign countries in the form of raw materials. The development of purification and deep processing and the development of high value-added products will be the key issues that China’s talc industry needs to solve in the future. Only in this way can China’s talc capacity be further expanded, and a large number of medium and low-grade talc can find new markets. The emergence of the talc grinding mill has solved this problem.
The talc powder obtained by talc grinding mill is divided into two types: ground talc powder and fine talcum powder according to the size of the pulverized particle size. Ground talcum powder can be divided into 7 varieties according to different industrial uses:
Coating grade talcum powder: used for white body pigments and various water-based, oil-based, resin industrial coatings, primers, protective paints etc.
Paper grade talcum powder: filler for various paper and paperboard, wood asphalt control agent
Plastic grade talcum powder: filler for plastics such as polypropylene, nylon, polyvinyl chloride, polyethylene, polystyrene and polyester
Rubber grade talcum powder: used as a rubber filler and rubber product anti-adhesive agent
Cable grade talcum powder: used for cable rubber reinforcement, cable release agent
Ceramic grade talcum powder: manufacturing electric porcelain, radio porcelain, various industrial ceramics, architectural ceramics, household ceramics and porcelain ceramic glaze etc.
Waterproof material grade talcum powder: used for waterproofing membranes, waterproof coatings, waterproof greases etc.
Fine talcum powder: advanced paint coating, plastic, cable rubber, cosmetics, copper paper coating, textile lubricant etc.
For 80-3000 mesh talc powder grinding, we can choose raymond mill, micro powder grinder and ultrafine mill etc from Guilin Hengda Mining Machinery Co., ltd, which can meets your different requirements and with discount price.
5th Nov 2018