The company has a series of related technologies for the production of silicon materials. It is mature and advanced. Through optimization, it can reduce investment costs, extend continuous production cycle, significantly reduce energy consumption and material consumption, improve product quality, have obvious cost advantages, and greatly enhance safety. According to the simplification of existing polysilicon enterprise products, the utilization rate of by-products and the value of utilization are not high, the circular economy model of silicon industry has been developed to help enterprises achieve better economic benefits. At the same time, silicon industry technology can also be used in other combinations.
●silane particle silicon technology
Granular polycrystalline silicon is an important raw material for manufacturing solar cells, and granular polycrystalline silicon has a large cost advantage compared to rod-shaped polycrystalline silicon. The silane fluidized bed technology utilizes the silane gas produced by the silane production unit (the company uses trichlorosilane disproportionation method) to thermally decompose in a special fluidized bed reactor and deposit it on the surface of fluidized high-purity seed crystals. Granular polycrystalline silicon is obtained, and the average particle diameter can reach 1000 μm. .
The silane fluidized bed method of Zhejiang Jinggong new material is based on the advanced digestion and absorption of foreign advanced technology. It is continuously innovated and optimized. Compared with the production of rod-shaped polycrystalline silicon, the production capacity is larger and the reduction power consumption is lower. The back-end pellets and micro-powder packaging are fully automatic and highly automated.
●High purity silicon tetrachloride technology
High-purity silicon tetrachloride is mainly used to produce optical fiber and is an important raw material for the electronic communication industry. The company's high-purity silicon tetrachloride technology has the advantages of low energy consumption, good continuity, high degree of automation, large scale, strong safety, less waste and excellent product quality.
● Slurry recovery treatment technology
The chlorosilane slurry treatment technology owned by Zhejiang Jinggong New Material Technology Co., Ltd. is advanced, mature, safe and environmentally friendly. The company's team optimizes the equipment, the investment cost of the equipment is lower, the key equipment is more advanced, and the processing capacity is greater. More recycling, lower energy consumption, and continuous production.
●Silane CVD deposition furnace
Electronic grade polysilicon is the main semiconductor electronic material and the basic material for defense aerospace. Its follow-up products are widely used in the field of electronic information. With the rapid development of China's electronics industry, especially the rapid development of high-tech fields, China's demand for electronic grade polysilicon has increased day and night. The electronic grade polysilicon production technology owned by Zhejiang Jinggong New Materials is to use ultra-high purity silane gas to undergo thermal decomposition reaction in silane chemical deposition furnace (CVD) to produce ultra-high purity electronic grade polysilicon (11N). Through the digestion, absorption and development optimization of silane CVD and related processes, the company's technical team has lower energy consumption and more stable product quality for producing electronic grade polysilicon.
●Cold hydrogenation technology
As the mainstream technology of industrialized polysilicon production in the world, cold hydrogenation technology has been widely used at home and abroad. In recent years, domestic polysilicon plants are gradually updating the process from thermal hydrogenation to cold hydrogenation. The advantages of this process are significant energy saving, low cost, good quality, and comprehensive utilization technology, which can recycle most of the by-products in the production process, so it does not pollute the environment and has obvious competitive advantages. The silicon tetrachloride cold hydrogenation technology of Jinggong new material is optimized and integrated on the basis of absorbing foreign advanced technology, which is very mature and advanced. The conversion rate of silicon tetrachloride is high, the unit power consumption is low, the annual continuous operation time is long, the chlorosilane in the slurry can be recovered to the greatest extent, and the discharge of the device is the least, reaching the international leading technical level.
●High purity silane gas technology
High-purity silane (SiH4) is a basic raw material for the semiconductor industry, electronic information industry, and new energy industry. It is widely used in LCD panel display, semiconductor, solar energy and other industries. It has high purity, no pollution, no corrosion to equipment, fine control, and has become an important special gas that cannot be replaced by other silicon source gases.
The technology adopts the chlorosilane disproportionation process, also known as the UCC method, the process conforms to the big chemical concept, the system is closed loop, and few by-products are produced, and various products can be flexibly prepared, and the obtained product has high purity.
● Silane gas filling technology
The silane gas filling technology is mainly to safely charge the high-purity silane gas produced by the silane production unit into a specific container, such as a steel bottle bundle, a Y-bottle, a tube bundle trailer (torpedo car), and the technology has a filling process. The generated exhaust gas is small, and the obtained product has high purity and the like.
●GC white carbon black process package + equipment
Gas phase white carbon black, also known as fumed silica, is an important nano chemical material with a small particle size (7-40 nm), large specific surface area (50-400 m2/g), and high product purity (SiO2 ≥ 99.9%). The product has excellent surface chemical properties and good physiological inertia. It has a wide range of applications in silicone rubber, adhesives, paints, coatings, inks, electronics, paper, cosmetics, medicine, food and agriculture. The functions of thickening, thixotropic, and extinction are indispensable raw materials in the national high-tech field and the national defense industry, and are known as industrial MSG.
Zhejiang Jinggong New Material Vapor White Carbon Black Technology is based on the continuous digestion, absorption and absorption of foreign advanced technology, through continuous innovation, optimization and practice. Compared with the current domestically adopted technologies, in single-line production capacity, device continuity, automation , equipment life, product quality and other aspects, with incomparable advantages.
●Trichlorosilane process package + equipment
The fluidized bed process of Zhejiang Jinggong New Materials Co., Ltd. manufactures trichlorosilane. By optimizing the process and equipment, the continuous production cycle of the device is greatly extended, the production cost is greatly reduced, the safety is greatly enhanced, and the high boiling and low boiling materials are enhanced. The recycling process is environmentally friendly and has few side effects. It is the top technology level in the country.