Chemical silicon is the production of silicone and polysilicon for silicone mold rubber silicon steel. From a worldwide perspective, the consumption of metallurgical silicon almost use in chemical silicon consumption, however with the continuous improvement of science and know-how, the chemistry of silicon used in the sector of organic silicon and semiconductor manufacturing is proceed to broaden, and is extensively used within the production of organosilicon monomer and polymer silicone products oil, silicone rubber, silicone resin buildings corrosion, waterproofing brokers, they have a high temperature, electrically finest edge, resistance to radiation, water and other unique properties. Electrical, discuss aerospace, equipment, chemicals, pharmaceuticals, defense, building part. Greater than 95% of the built-in circuit core is made of semiconductor silicon, semiconductor is a pillar of the contemporary information business. "Data superhighway" in a lot of functions within the fiber-optic cable fiber optics, silicon metal for the manufacturing of uncooked materials. Chemistry of silicon broadly used as a high-tech fields, and an essential basic industries, consumption development is stabilizing.
The metal powder provider use quartz rock as uncooked supplies, low-ash carbonaceous materials as reductant to produce chemical steel silicon. Electric furnace produce chemical silicon, the raw materials primarily silica and carbon materials. Carbon uncooked materials once more petroleum coke quality anthracite or charcoal, can also be mixed with a component, to increase the charge resistance. Uncooked materials require crucial purity, good response, in order to achieve the product specifications; lowering agent has a special response, to be able to have an sufficient response with quartz; furnace burden with totally different substances, and with completely different granularity, with a view to by way of the satisfactory coordination make the electric furnace with good effect.
The means of silicon oxide mineral smelting metallic silicon is a no slag course of, chemical silicon smelting is through stringent alternative of silica, not only the content material of impurities is less, but also requires a high mechanical strength, and ample thermal stability, an appropriate particle dimension composition. Chemical silicon smelting is healthier to choose silica. The natural type of silicon oxide or exist in independent quartz minerals, or is almost wholly into the rock by the silicon oxide product - silica, or silica morphology sandstone. Manufacturing of chemical silicon containing impurities within the silicon oxide mineral and adhesive material in the smelting process and a few completely restored, and a few elements are restored, some compound type coming into the product silicon or born slag. This isn't solely will increase vitality consumption, lower product high quality, cause difficulties to the smelting process.
Silica into the furnace is required to have a certain particle measurement. Silica particle dimension is a vital strategy of smelting. Silica suitable particle size affected by silica sorts, furnace capacity, maneuvering conditions, as well because the decreasing agent and the particle measurement and other components, it is determined to the particular conditions of smelting. Carbonaceous decreasing agent, the principle reducing agent of chemical silicon smelting, petroleum coke, bituminous coal, charcoal. In order to increase the burden of the resistivity and enhance the chemical activity, additionally with gasoline coal, silica naphthalene, blue, charcoal, semi-coke, low temperature coke, items of wooden. In the chemical elements of the carbonaceous reducing agent, mainly ought to be considered fastened carbon, ash, risky matter and moisture. General requirements for fastened carbon, cut back the reductant complete required, thus much less ash into the impurities, a corresponding discount in the amount of slag, reduced power consumption, lowered chemical silicon impurity content material. The resistivity of the carbonaceous decreasing agent to be massive, the porosity to be high. The furnace burden resistivity depends primarily on the carbonaceous reductant. The higher carbonaceous reductant resistivity, the higher chemical exercise, and the excessive restoration price of the silicon energy.