Ferro alloy
Metallic Silicon 441 553 Silicon Metal for Steelmaking
In industry, metallic silicon is usually made from carbon silicon dioxide in an electric furnace. Chemical equation: Silicon from SIO2 + 2C → SI + 2CO is 97-98% pure silicon, called metallic silico...
DESCRIPTION
In industry, metallic silicon is usually made from carbon silicon dioxide in an electric furnace. Chemical equation: Silicon from SIO2 + 2C → SI + 2CO is 97-98% pure silicon, called metallic silicon. After melting and recrystallization, 99.7 ~ 99.8% silicon metal was obtained by removing impurities with acid.
| Silicon Metal Lump | Si(≥) | Fe(≤) | Al(≤) | Ca(≤) |
| % | ||||
| 553 | 98.50 | 0.5 | 0.5 | 0.3 |
| 521 | 99.0 | 0.5 | 0.2 | 0.1 |
| 441 | 99.0 | 0.4 | 0.4 | 0.1 |
| 421 | 99.0 | 0.4 | 0.2 | 0.1 |
| 411 | 99.0 | 0.4 | 0.1 | 0.1 |
| 3303 | 99.2 | 0.3 | 0.3 | 0.03 |
| 2202 | 99.5 | 0.2 | 0.2 | 0.02 |
| 1101 | 99.5 | 0.1 | 0.1 | 0.01 |
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