High-Efficiency 80-120mm Calcium Carbide for Heavy Industrial Applications

In high-capacity chemical processing and heavy metallurgical industries, controlling reaction kinetics and maintaining thermal stability depend heavily on selecting the correct lump dimensions. Our premium industrial-grade 80-120mm calcium carbide is specifically engineered to provide an optimal balance between sustained reaction longevity and maximum acetylene gas generation. Processed under stringent quality standards, this large-lump carbide minimizes fine particulate matter, making it the premier choice for large-scale carbide-to-acetylene generators and hot-metal desulfurization units.

Engineered Chemical Performance and Quality

Synthesized through the electro-thermal reduction of high-purity quicklime (calcium oxide) and premium metallurgical coke in electric arc furnaces, our 80-120mm calcium carbide delivers consistently high chemical activity. The large particle size profile (80mm to 120mm) substantially reduces the overall surface area per unit weight compared to fine granules. This physical characteristic regulates the rate of hydration when reacting with water, effectively preventing unexpected pressure spikes, localized overheating, and foam formation inside continuous-feed reaction tanks.

Every shipment is guaranteed to achieve an acetylene gas yield of at least 295 L/kg under standard conditions (20°C, 101.3 kPa). Because large lumps possess high structural resistance against mechanical abrasion, choosing 80-120mm calcium carbide significantly decreases degradation and dust accumulation during transshipment, offering superior storage stability and material yield.

Technical Specifications

• Chemical Formula: CaC₂
• CAS Registry Number: 75-20-7
• Particle Granulation: 80mm – 120mm (≥ 90% within specified fraction)
• Acetylene Gas Yield: ≥ 295 L/kg
• Phosphine (PH₃) Content: ≤ 0.08% (v/v)
• Hydrogen Sulfide (H₂S) Content: ≤ 0.10% (v/v)
• Physical Appearance: Hard grey, dark brown, or dark purple crystalline lumps

Primary Industry Applications

The distinct particle size distribution of this grade caters specifically to heavy industrial facilities where lower-grade or finer carbide products present operational hazards or throughput bottlenecks:

1. High-Capacity Acetylene Plants: Industrial acetylene production facilities rely on stable lump sizes to prevent feeding mechanism blockages in large hoppers and maintain steady, predictable gas pressure across multi-stage filtration units.
2. Steelmaking Hot-Metal Desulfurization: In modern steel mills, calcium carbide acts as a powerful desulfurizing agent when injected into molten iron ladles. Large lumps ensure deeper penetration into the melt, resulting in cleaner steel formulations with reduced sulfur content.
3. Chemical Feedstock Production: Serves as a fundamental raw material in the industrial synthesis of vinyl chloride monomer (VCM), calcium cyanamide fertilizer, synthetic rubber precursors, and specialized acetylene derivatives.

Packaging, Safety, and Logistics

Due to its highly reactive nature with moisture, our 80-120mm calcium carbide is packaged using heavy-duty, moisture-sealed steel drums filled under a dry nitrogen atmosphere. Available in standard 50kg and 100kg steel containers fitted with airtight lever-lock lids, our packaging guarantees maximum shelf life, prevents ambient degradation, and ensures safe handling during ocean transport and long-term site storage.