What Is The Price Of Industrial Silicon 3303?

What is the price of Industrial Silicon 3303?

What is the price of industrial silicon powder?

What are silicon metals 3303 used for?

Silicon Metal 3303 is a high-purity silicon alloy (typically ≥99.3% Si) with tight control over impurities (e.g., boron ≤0.0005%, phosphorus ≤0.0005%, iron ≤0.05%). Its key applications include:

​​Aluminum Alloys​​: Added to aluminum (e.g., 4xxx series) to enhance castability, corrosion resistance, and mechanical strength (common in automotive parts, construction profiles, and heat sinks).

​​Semiconductor Manufacturing​​: Used as a raw material for polycrystalline silicon (polysilicon) in solar panels and semiconductor wafers (after further purification).

​​Chemical Industry​​: Serves as a precursor for producing silicones, silanes, and other silicon-based chemicals (e.g., for lubricants, sealants, and adhesives).

​​Metallurgical Deoxidizer​​: Removes oxygen from steel and ferroalloys, improving product purity and quality.

How is silicon metal 3303 made?

Silicon Metal 3303 is produced via ​​carbothermal reduction​​ of silica (SiO₂) in specialized electric arc furnaces, with strict process controls to limit impurities:

​​Raw Material Charging​​: High-purity quartzite (SiO₂, ≥98.5%) and low-ash metallurgical coke (carbon source) are layered into the furnace.

​​Reduction Reaction​​: At temperatures exceeding 1,800°C, carbon reacts with silica to produce silicon and carbon monoxide:

SiO2​+2C→Si+2CO.

​​Impurity Control​​: The furnace atmosphere and charge composition are optimized to minimize boron, phosphorus, and transition metals (e.g., Fe, Al) via selective raw material sourcing and slagging.

​​Tapping and Refining​​: Molten silicon is tapped, then solidified and crushed. Final purification (e.g., directional solidification) may be applied to achieve 3303-grade purity.

What are the raw materials of silicon metal 3303 ?

The primary raw materials for Silicon Metal 3303 are:

​​Quartzite​​: High-purity silica (SiO₂, ≥98.5%) with low impurities (e.g., B₂O₃ <0.01%, P₂O₅ <0.01%) to ensure silicon purity. Mined from deposits with minimal trace elements.

​​Metallurgical Coke​​: Derived from low-ash, low-sulfur coal, serving as the reducing agent. It must have high fixed carbon (>85%) to maximize reduction efficiency.

​​Fluxes (Optional)​​: Limestone (CaCO₃) or dolomite may be added to react with impurities (e.g., Al₂O₃, TiO₂) and form slag, which is separated from molten silicon.

These materials are carefully selected and processed to meet the strict purity requirements of the 3303 grade.