Silicon Metal
Silicon Slag
Structural characteristics and application:
Silicon Slag (Off grade silicon) is a by-product of silicon metal production. It's the separated part which are less purity of silicon metal. Usually silicon slag contains higher contents of Fe, Al, Ca and other oxide. Silicon, with other elements like Fe, Al, Ca, have strong reaction with oxygen; Meanwhile other impurities are oxide also are not harmful to liquid steel. Those characters made silicon slag to be a great de-oxidizer.
Silicon Slag(Off grade silicon) can not only be used for producing white carbon black, after processing but also be used as cement materials or making ordinary firebrick. Silicon slag can be recycled through recrystallization and purification again to realize silicon material use again make silicon slag fully used. The recycle value is relatively high.
Specification:
| Chemical Composition% | |||||
| Grade | 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 | 5 |
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