Introduction of silicon slag:
Slag material is a byproduct from production of silicon metal of ≥99% purity. To ensure the quality of the silicon metal, top portion of the melt is separated when draining from the electricarc furnace. The less pure portion of silicon metal typically contains higher contents of iron, aluminum, calcium and other slag. With the employment of density separation machines, different grades of silicon slag are segregated efficiently.
Silicon slag isproduct from the manufacturer of silicon metal, it is a kind of mixture which contains the main content Silicon (30%~70%) and other components such as C, S, P, Al, Fe. It is a good substitute for FeSi in steel making, which has advantage in lowing the cost of production and reusing resource. Usually we use silicon slag to produce silicon briquette which is far and wide market in domestic and international.
Photo of Silicon Slag
Usage:
The silicon slag is much cheaper than ≥99% purity silicon metal, and has many industrial applications. For example, It is
1. Used as deoxidizing agent in steel production to reduce oxygen levels in the melt via reaction such as Si + 2 O (in liquid Fe)> SiO2 (SiO2 is formed as a solid dispersed in molten Fe, and subsequently floats to the surface of the melt. It is removed by either skimming or by draining molten iron from the bottom);
2. Use as deoxidizing agent in the production of magnesium, chromium and other metals via the same mechanism;
3. Used in the production of lower grade of Si3N4 in a cost effective manner, the material is suitable for refractory applications such as refractory bricks and other high-temperature applications;
4. An economical feedstock in the manufacture of silica sol or colloidal silica;
5. A low cost feedstock in the manufacture of organosilyl derivatives and silicone products
Chemical composition:
Silicon Slag | |||||
Type | Si | Ca | S | P | C |
| ≥ | ≤ | |||
Silicon Slag 45 | 45 | 5 | 0.1 | 0.05 | 5 |
Silicon Slag 50 | 50 | 5 | 0.1 | 0.05 | 5 |
Silicon Slag 55 | 55 | 5 | 0.1 | 0.05 | 5 |
Silicon Slag 60 | 60 | 4 | 0.1 | 0.05 | 5 |
Silicon Slag 65 | 65 | 4 | 0.1 | 0.05 | 5 |
Silicon Slag 70 | 70 | 3 | 0.1 | 0.05 | 3.5 |
Size of particles: 10-60 mm, 1-3mm, 0-3mm or as requirements
Other Conditions:
1. Silicon slag(off grade silicon) is a by-product when making silicon metal.
2. the silicon content is from 45% to95%, and the rest are C, S, P, Al, SiO2, Fe, Ca etc.
3. The silicon slag is much cheaper than purity silicon metal, and has many industrial applications.
4.Silicon content from 30~50% is used for silicon addition for iron making in the blast furnace and cupola;
5.Silicon content from 50~70% is used for the deoxidization of steel making.
6.It is a good substitute for ferro silicon in steel making which has advantage in reducing the making cost.
7.The silicon slag powder can be made silicon briquette which has far and wide market at home and abroad.
8.it is used as deoxidizer in steel making.
Company Introduction:
We are a professional Ferroalloy manufacture in China for over 10 years. We have two branch companies,separately in Anyang and Ningxia. Exporting experiences over 3 years, mainly to South Korea, Japan, Taiwan and European countries.
Located in Anyang,Anyang Xinzheng Metallurgical Materials Co., Ltd was founded in 2003. Our company enjoys a geographically advantaged transportation. The factory covers an area of 12,000 square meters, with registered capital of 6.8 million. The annual sales is 213.815 million, paying tax 13.731 million. It has over 120 employers, of which 30 are senior and professional technicians
Business scope
The main products contain many ferro alloys such as FeSi, SiMn, CaSi, SiAl, NCrFe, SiAlCa, SiAlCaBa, SiBaCaMg, and all kinds of ferro alloy cored wire, as well as refractory materials such as slag fluxing agent, silicon briquette, drainage sand, ladle castable, SiC deoxidizing agent, compound recarburizer and MnC ball. All specifications can be adjusted according to the customer's demands.
Photo of our factory in Ningxia:
Ensured Supply Capability
We specialize in ferroalloy for 11 years. Our company enjoys a broad range of high grade raw material supplied from Ningxia, Guangxi, Hunan, Sichuan, Shanxi, Yunnan , Guizhou, Inner Mongolia, etc. All finished products’ quality meet ISO standard, and all specifications can be adjusted according to the customer's demands, the product quality is highly steady and guaranteed.
Certification CIQ, SGS
Guarantee
Our company have formed our own network and market for our finished products, offering big-sized steel corporations, gaining good trust from regular users by the stable quality as feedback, holding a heritage and reputation that goes back over 10 years. Our seniors have been working in metallurgy industry for decades and accumulating plenty managerial experience that can ensure our successful operation for manufacture.
Upholding the tenet of “quality first, customer paramount ”, we have established the aftersales tracking system and the user feedback network. Sticking to the corporate spirit of winwin and mutual benefit, we are ready to sincerely cooperate with our domestic and overseas customers for a greater future.
If you are interested in our products, please do not hesitate to contact us now!
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