Products Description
Silicon slag is a byproduct of silicon metal and ferrosilicon production with unique properties that make it valuable for industrial applications:
- Variable Silicon Content: Typically contains 30-70% residual silicon depending on source material and refining process
- Complex Composition: Mixture of Si, Fe, Al, Ca oxides and non-metallic inclusions
- High Reactivity: Active silicon content makes it effective for metallurgical processes
- Density: 2.2-2.8 g/cm³ (lower than pure silicon metal)
- Melting Point: 1300-1450°C (depends on composition)
- Particle Structure: Porous, irregular morphology with high surface area
Key Material Properties:
- Excellent deoxidizing capability in steelmaking
- Effective alloying agent for cast iron production
- Cost-efficient alternative to pure silicon materials
Specifications
Key Features & Benefits
✔ Cost Efficiency
50-70% cheaper than pure silicon metal
Reduces production costs in steel and foundry industries
01
Dual-Function Material
Acts as both deoxidizer and alloying agent simultaneously
Replaces combination of FeSi + CaSi in some applications
02
Environmental Advantage
Recycles industrial byproducts that would otherwise be wasted
Lower carbon footprint than primary silicon production
03
Process Optimization
Faster dissolution in molten metal vs. pure silicon
Reduces slag volume in steelmaking by 15-
20%
04
Quality Improvement
Enhances fluidity in cast iron production
Improves mechanical properties of final products
05
Applications
Steel Industry
Deoxidation: 1-3kg/ton steel addition in ladle treatment
Alloying: Silicon content adjustment in stainless steel production
Desulfurization: Combined with CaO for sulfur removal
Foundry Applications
Cast Iron Modification: 0.5-1.5% addition for:
Improved graphite formation
Reduced chill tendency
Better machinability
Silicon Recovery
Feedstock for secondary silicon production
Solar Grade Silicon: After advanced purification processes
Construction Materials
Cement Additive: Pozzolanic activity enhancement
Refractory Component: For intermediate temperature linings
Other Uses
Welding flux component
Aluminum alloy production
Chemical industry raw material
why choose us
Stable Quality Control
Automated sorting by Si content (±2% accuracy)
Advanced crushing for optimal particle distribution
Custom Solutions
Special grades with controlled Al/Ca ratios
Custom sizing from powder to 100mm lumps
Sustainable Production
Zero-waste processing (100% material utilization)
Energy-efficient crushing and grading
Global Supply Chain
50,000 ton annual capacity
Flexible packaging (bulk, bags, containers)
FAQ
Q: What is Foreign Trade-Express?
A: Foreign Trade Express is a one-stop intelligent foreign trade network marketing SaaS system platform.
Q: Are you a manufacture or trader?
A: We are manufacture.
Q: How are the products' quality?
A: The products will be strictly inspected before shipment, so the quality could be guaranteed.
Q: How about your company's certification?
A: ISO9001 and Test Report.
Q: What's the MOQ of trial order?
A: No limit,We can offer the best suggestions and solutions according to your condition.
Q: How long is delivery time?
A: The delivery time will be determined according to the quantity of the order.
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