Literally

Barite is barium sulfate ore with different purity

Barium sulfate powder obviously refers to purity

Barium sulfate powder, with chemical composition of BaSO4, is a sulfate mineral of orthorhombic (orthorhombic) crystal system. They are usually thick plate-shaped or columnar crystals, mostly compact block shaped or plate-shaped and granular aggregates. When it is pure, it is colorless and transparent. When it contains impurities, it is dyed into various colors. The stripes are white, and the glass luster is transparent to translucent. Complete and medium cleavage in 3 directions, Mohs hardness 3-3.5, specific gravity 4.5

Application of precipitated barium sulfate (granular) in coatings there are two forms of barium sulfate as pigment and filler in building waterproof coatings: Barite powder prepared by processing natural mineral barite and precipitated barium sulfate prepared by chemical methods. Due to the requirements of some special properties, precipitated barium sulfate coating is generally used as building waterproof coating.

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There are mainly two kinds of barium sulfate used in industry. One is barite powder, which is a natural barium sulfate made of directly ground barite and contains a small amount of calcium carbonate and barium carbonate impurities. It is mainly used in paint and pigment fields. Barium sulfate radiation resistant mortar has good shielding performance, construction performance and mechanical performance, and has good alkali resistance and water resistance. The other is precipitated barium sulfate used to prepare high luminosity PP. Precipitated barium sulfate is prepared by chemical method. The purity of barium sulfate is very high, which can generally reach more than 98%. There are two main processes for preparing barium sulfate by sedimentation. One is to calcine barite and coal powder for reduction, and then add sodium sulfate solution for reaction. The other is to react natural barium carbonate with sulfuric acid. These processing methods are common in China.

Radiation resistant barium sulfate is an excellent high-energy radiation protection material, which is used in radiation protection engineering. It has the advantages of low cost, convenient construction and long service life. Radiation resistant barium sulfate has the characteristic of absorbing X-rays. The barium sulfate mortar made of severely radiation resistant barium sulfate can isolate X-rays. The content of barium sulfate BaSO4 in the preparation of radiation resistant barium sulfate concrete and concrete is not less than 86%. Barium cement, barium sulfate mortar and barite concrete made of barium sulfate are used to replace metal lead plate screens and nuclear reactors, and to prevent X-rays in scientific research and hospital construction.

Barium sulfate is widely used in life, industry and medical fields. It is commonly used as a filler or raw material for paints, inks, plastics, advertising pigments, cosmetics, batteries and rubber products.

It is used as a filler and weighting agent in PVC, for surface coating of impression paper and coated paper, for textile industry and sizing. Transparent barium sulfate glass this product is used as a clarifying agent, which can defoaming and brightening. Barium sulfate can be used as a protective wall material against radiation. Barium sulfate can also be used in the ceramic, enamel, perfume and pigment industries.

Barium sulfate is also used as a raw material for manufacturing other barium salts. It can be used for powder coating, paint, ship primer, ordnance equipment paint, automobile paint, latex paint, interior and exterior wall construction paint, etc., which can improve the light resistance of products. Weather resistance, chemical and electrochemical corrosion resistance, improve the decorative effect of the product and improve the impact resistance of the coating. Barium sulfate is used in the production of other barium salts in the inorganic industry, such as barium hydroxide, barium carbonate, barium chloride and other raw materials. When wood grain printed boards are used for wood products processing, barium sulfate is used as primer and paint preparation. Barium sulfate is used as raw material for organic synthesis and green pigment and lake.

Barium sulfate is divided into two kinds, one is made by grinding barite, and the other is precipitated barium sulfate synthesized chemically. Because the production equipment of precipitated barium sulfate is complex, in the process of pickling and water washing. Medium and high pollution resources and wastewater discharge have seriously affected the environment. The national production policy for precipitated barium sulfate has been tightened year by year, especially during this year's "environmental impact assessment storm", a number of enterprises have been eliminated.