"Metal silicon" (also known as industrial silicon in China) is a commodity name that appeared in the mid-1960s. Its emergence is related to the rise of the semiconductor industry. The international practice is to divide commercial silicon into metallic silicon and semiconductor silicon. Silicon metal is made of quartz and coke in the electric furnace smelting products, the content of the main component silicon element is about 98% (containing 99.99% Si content is also included in silicon metal), the remaining impurities are iron, aluminum, calcium and so on. Semiconductor silicon A high-purity metallic silicon used to make semiconductor devices. It is sold in polycrystalline and single crystal form, the former is cheap, the latter is expensive. It is divided into various specifications for different uses.

 

 

Metal silicon smelting is a high energy production, China's metal silicon production has been a long time, with the tightening of the national energy policy and the development of energy conservation and emission reduction, as well as 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 metal silicon, polysilicon, monocrystalline silicon, solar cells and other circular industrial chain. The next few years will inevitably affect the development of the entire energy field and the application of new energy in our country.

 

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