Product Specifications
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Place Style: |
Horizontal |
| Manufacturing Level: |
A |
| Media: |
Organic Heat Transfer Material |
| Burning Style: |
Internal Firing Boiler |
| Usage: |
Industrial |
| Fuel: |
Electric Heating |
Product Description
Main application of industrial silicon:
The industrial silicon also called silicon metal, its main application is be the additive agent of non-ferrous alloy. When puts the silicon into some nonferrous metal, it will improve the matrix metal's strength, solidity and abrasion performance and sometimes can improve the casting property and welding performance. Industrial silicon also can used in silicon steel making which is required strict alloy agent, and used as deoxidizer for smelting special steel and nonferrous matrix alloy. After a series of processing treatment, the industrial silicon can be made to be monocrystalline silicon for electronic industry.
Production process of industrial silicon:
The industrial silicon smelting is in AC electric reducing furnace, our company use the advanced technology of domestic and foreign to design furnaces, it's with advanced and reasonable technology, it's substantially improved the industrial silicon furnace's power factor and equipments' working efficiency.
The main raw material of smelting industrial silicon includes: Silica, carbonaceous reducing agent. Because of the strict requirement of the aluminum, calcium and iron content in industrial silicon, so has same strict requirement for the raw material.
Requirement of raw material: SiO2 (in silica)>99.0%, Al2O3<0.3%, Fe2O3<0.15%, CaO<0.2%, MgO<0.15%, particle size is 25~80.
The principle to choose carbonaceous reducing agent is: High fixed carbon, low ash specification, good chemical activity. Usually, using low-ash petroleum coke or pitch coke as reductant. But due to both of the coke have low resistivity, poor reaction ability, we have to use the charcoal (wood brick) with low ash specification, powerful resistivity and strong respond ability to replace some petroleum coke. For sintering the burden we also need use some low-ash soot.
Grade |
Chemical Composition (%) |
|
Si(%) |
impurity content |
|
Fe |
Al |
Ca |
P |
|
1515 |
>99.6% |
≤0.15 |
_ |
≤0.015 |
≤0.004% |
|
2202 |
>99.5% |
≤0.2 |
≤0.2 |
≤0.02 |
≤0.004% |
|
2203 |
>99.5% |
≤0.2 |
≤0.2 |
≤0.03 |
≤0.004% |
|
2503 |
>99.5% |
≤0.2 |
_ |
≤0.03 |
≤0.004% |
|
3103 |
>99.4% |
≤0.3 |
≤0.1 |
≤0.03 |
≤0.005% |
|
3303 |
>99.3% |
≤0.3 |
≤0.3 |
≤0.03 |
≤0.005% |
|
411 |
>99.2% |
≤0.4 |
0.04_0.08 |
≤0.1 |
_ |
|
421 |
>99.2 % |
≤0.4 |
0.1_0.15 |
≤0.1 |
_ |
|
441 |
>99.0 % |
≤0.4 |
≤0.4 |
≤0.1 |
_ |
|
553 |
>98.5 % |
≤0.5 |
≤0.5 |
≤0.3 |
_ |
CNBM (China National Building Material) Group is the largest comprehensive building materials group in China that in intergrate scientific research, manufacturing and logistics into one entity. The largest building materials and equipment specialists in China. Upon State Council approval, today CNBM owned more than 300 subordinate manufacturing factories and servicing companies. There are 6 fully owned public listed companies and 11 partially owned with substantial shares public listed companies. In many of these fields, CNBM is playing the leading role in the building industry in the country.
CNBM International Corporation is the most import and export platform of CNBM group. With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
CNBM International is highly recognized by its business partners and clients all over the world and has obtained rapid development under the spirit of win-win. Depending on the support of prodution divisions and its active staff, CNBM international reached a turnover of USD one billion in 2010. We will carry on the mutual beneficial, create value for our employees, share holders and clients and benefit the whole society in our future development.
