Metal silicon smelting process
Published:
2019-08-29
Metal silicon smelting belongs to high energy consumption production. China's metal silicon production has a long history. With the tightening of national energy policy, the development of energy conservation and emission reduction, and the promotion of new energy, metal silicon smelting has become a primary product and process. Many domestic emerging energy enterprises have built a series of circular industrial chains such as metal silicon, polycrystalline silicon, monocrystalline silicon, and solar cells, In the next few years, it is bound to affect the development of the whole energy field and the application of new energy in China.
Metal silicon smelting belongs to high energy consumption production. China's metal silicon production has a long history. With the tightening of national energy policy, the development of energy conservation and emission reduction, and the promotion of new energy, metal silicon smelting has become a primary product and process. Many domestic emerging energy enterprises have built a series of circular industrial chains such as metal silicon, polycrystalline silicon, monocrystalline silicon, and solar cells, In the next few years, it is bound to affect the development of the whole energy field and the application of new energy in China.
The metal silicon produced in China is mainly used for metallurgy. The production of chemical metal silicon has developed since the mid-1990s. In recent years, the output and export of chemical silicon in China have increased rapidly. From 1999 to 2001, China's chemical silicon exports to Japan have reached 22000 tons, 30000 tons and 40000 tons respectively. In 2001, China's chemical silicon exports to Japan accounted for more than 40% of Japan's chemical silicon imports. Now China has begun to join the ranks of chemical silicon producing and supplying countries, and the number of enterprises producing chemical silicon is increasing.
With the continuous development of science and technology, chemical silicon is widely used in organic silicon and semiconductor production and other fields. It is widely used in the production of organic silicon monomer and polymer silicone oil, silicone rubber, silicone resin building anti-corrosion, waterproof agent, etc. They have unique properties such as high temperature resistance, electrical insulation, radiation resistance, waterproof, etc. It is used in electrical, aviation, machinery, chemical, pharmaceutical, national defense, construction and other departments. As the core of integrated circuit, more than 95% of electronic components are made of semiconductor silicon. Semiconductor is the pillar of the contemporary information industry. Chemical silicon is widely used as a high-tech field and an important basic industry, and its consumption tends to grow steadily. Under normal circumstances in the international market, the price of chemical silicon per ton is 300-400 dollars higher than that of metallurgical silicon. Therefore, it is necessary to vigorously develop the production of chemical silicon, whether to meet the export and domestic demand, or to improve the economic benefits of metal silicon enterprises, improve product quality.
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