Through deep processing, the barite ore deposits produce barium sulfate, high-gloss barium sulfate, ultra-fine barium sulfate , and nano-barium sulfate, which can not only meet the needs of various occupations, but also a great advantage for the plastics and rubber professions. As an inexpensive filling material, its widespread use in practice is gradually becoming popular.
More than 50% of the barite production value is used for petroleum and geological drilling. According to statistics, one ton of barite powder is consumed for every 30 meters of drilling, so the cost is large. In the chemical industry, there is a fixed relationship between the production value of various barium salts and the consumption of barite raw materials, and the consumption of barite is also large. The following is an analysis of the reasons for the increase in the growth rate of the professional situation of barium sulfate in China by the Shandong Zhengcheng Mineral Materials Processing Factory:
China is an area with the largest and most abundant barite resources in the world. Most of the barite resources in China are scattered in Guizhou, Yunnan, Shaanxi, Hubei, Hunan, Guangxi, Fujian and other places. As the consumption of mineral resources continues to increase, our environment is also facing new challenges. The demand for barite ore in various occupations in China has been increasing, and the demand for barite ore in foreign markets has also changed dramatically.
In particular, the demand for coatings and paint occupations is large, which directly drives the demand for barite. In 1996, the international barite production value was 4.415 million tons, an increase of 1.35% over 1995. At present, China has become the world ’s largest barite producer and an international barite exporter.
In the 1990s, the annual export volume of barite and its products was generally 1.5-2 million tons. In 1996, the export volume of barite and barium salts was 2.058 million tons, with an export value of 121 million US dollars, of which 1.86 million tons of barite and barium The product is 198,000 tons, mainly exported to the United States, the Netherlands, Japan and South Korea. China imports very little barite, and only imports a small amount of barium chemical products. Other major producers include Mexico, the former Soviet Union, the United States, India, Turkey and Morocco.
Barium sulfate is also called barite because it contains impurities such as CaCO3. It can be tested with dilute HCl or dilute HNO3. Natural BaSO4 is used to produce coatings or paper. It can be used as a white pigment [zinc-barium white (ZnS.BaSO4). Raw materials and fillers. It is used in the chemical industry to produce BaCl2 and other barium-containing compounds, and the deposited barium sulfate is relatively pure. In medicine, it is mainly used as an internal medicine for examining the stomach and intestines for barium meals.
Deposited barium sulfate is one of the few stable salts of sulfate. It is mainly used as an intensifying agent for oil and natural gas drilling muds. It is also an important mineral raw material for the extraction of barium metal and the preparation of various barium compounds. Industrially important barium compounds are barium carbonate, barium chloride, barium sulfate, barium nitrate, barium hydroxide, barium oxide, barium peroxide, barium chromate, barium manganate, barium chlorate, zinc barium white, and barium polysulfide. Wait.
Barium compounds are widely used: as raw materials and fillers for rubber, plastics, pigments, coatings, papermaking, textiles, paints, inks, welding rods; as raw materials for barium-based greases, oil refining, sugar beet, and rayon; Used as pesticides, sterilants, rodenticides, explosives, green fireworks, signal bullets, tracer bullets, indicators of medical X-ray images, etc .; also used in glass, ceramics, leather, electronics, building materials, metallurgy and other parts.
Barium sulfate has high filling ability and can be used in all coating series, for example, all types of primers, thick paste coatings, etc. Its low specific surface area and particle size dispersion and easy flowability make barium sulfate have low wear during processing Barium sulfate is recommended for use in the surface layer of automatic primers and maintains a good topcoat even at high fill levels. Barium sulfate is superior to most other fillers, especially in chemical resistant coatings. Its inertness makes it insoluble in water, acids, alkalis and organic intermediaries. The good gloss and the precision of the particles allow the topcoat to be maintained during long-term exposure.
Barium sulfate is recommended for topcoats. It can add surface hardness and color stability. The use of barium sulfate (about 25 ﹪) to PP can make the surface of PP look like ABS without affecting the existing characteristics of PP. It provides high gloss and high hardness. The surface barium sulfate can reach its filling rate of 80 ﹪. Used in Drain pipes, speakers, and speakers can effectively block noise and murmurs. Barium sulfate can be used to increase the volume of window coverings. It can provide high gloss, good color, scratch resistance, and good dimensional stability when used in housings of home appliances.
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