Direct Wholesale Powder Manufacturer Aluminium Alloy Melting Silicon Metal
Metallic Silicon Production Process
Generally, high-quality quartz sand is directly used for the production of high-grade quartz glass products, or even processed into gemstone-level products such as quartz crystals and tourmaline. Quartz sand of slightly lower grade but with larger reserves, easier mining conditions, and cheaper surrounding electricity is suitable for the production of metallic silicon.
Currently, the production process of metallic silicon in China using the carbothermal method generally involves using quartzite as the raw material, with petroleum coke, charcoal, wood chips, and low-ash coal as reducing agents. The smelting takes place in an electric arc furnace at high temperatures to reduce metallic silicon from the quartzite. This is a slag-free smelting process with a buried arc at high temperatures.
Silicon Metal Specification
|
Garde
|
Composition
|
|
Si Content (%)
|
Impurities (%)
|
|
Fe
|
Al
|
Ca
|
P
|
|
Silicon Metal 1501
|
99.69
|
0.15
|
0.15
|
0.01
|
≤0.004%
|
|
Silicon Metal 1502
|
99.68
|
0.15
|
0.15
|
0.02
|
≤0.004%
|
|
Silicon Metal 1101
|
99.79
|
0.1
|
0.1
|
0.01
|
≤0.004%
|
|
Silicon Metal 2202
|
99.58
|
0.2
|
0.2
|
0.02
|
≤0.004%
|
|
Silicon Metal 2502
|
99.48
|
0.25
|
0.25
|
0.02
|
≤0.004%
|
|
Silicon Metal 3303
|
99.37
|
0.3
|
0.3
|
0.03
|
≤0.005%
|
|
Silicon Metal 411
|
99.4
|
0.4
|
0.1
|
0.1
|
≤0.005%
|
|
Silicon Metal 421
|
99.3
|
0.4
|
0.2
|
0.1
|
–
|
|
Silicon Metal 441
|
99.1
|
0.4
|
0.4
|
0.1
|
–
|
|
Silicon Metal 551
|
98.9
|
0.5
|
0.5
|
0.1
|
–
|
|
Silicon Metal 553
|
98.7
|
0.5
|
0.5
|
0.3
|
–
|
|
Off-Grade Silicon Metal
|
96
|
2
|
1
|
1
|
–
|
Silicon metal powder is made of Silicon lumps by crushing, seiving, washing process etc. We have different grades of Si content powder, and we have different Si powder crushing and sieving processes to adapt to different applications of silicon powder.
Normal size: 180 mesh -325 mesh, 200 mesh, 325 mesh, 800 mesh, etc.
Packing & Delivery
Packing: 1 ton big bag, 20-25mt in 20' container
Company Profile
ZHENAN has been in the business of ferroalloy for 30 years now. It is a leading manufacturer and supplier of ferro silicon,silicon manganese,silicon metal,silicon carbide,high carbon silicon and so on.our company is a large-sized production enterprise integrating research, development, production and sales.
FAQ
Q: Are you a factory or a trading company?
We are factories and trading company.
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q:.What is your terms of delivery?
We accept FOB, CFR, CIF, etc. You can choose the most convenient way for you.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
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