Overview
Blue-coke medium particle is a semi-coke product produced through low-temperature dry distillation of coal, typically at temperatures ranging from 500°C to 700°C. It is characterized by its granular form, high fixed carbon content, and low impurities such as sulfur and phosphorus. The medium particle size ranges from 10-30 mm, making it suitable for various industrial applications. This product is particularly valued in industries requiring clean and efficient carbon sources. Its production process reduces volatile matter, resulting in a stable and environmentally friendly material. Blue-coke medium particle is commonly used in metallurgical processes, chemical production, and as a substitute for traditional coke in certain applications.
Physical and Chemical Properties
Blue-coke medium particle exhibits several key physical and chemical properties that make it desirable for industrial use. It has a high fixed carbon content, typically above 80%, and low sulfur content, usually below 0.5%. The ash content is generally less than 10%, and the volatile matter is reduced to below 5% during the production process. The material is insoluble in water and has a density ranging from 0.8 to 1.0 g/cm³. Its granular structure provides good permeability, which is advantageous in metallurgical applications. The low phosphorus content (typically below 0.05%) makes it particularly suitable for steelmaking processes where phosphorus contamination must be minimized.
Main Applications
The primary application of blue-coke medium particle is in the metallurgical industry, where it serves as a reducing agent in ferroalloy production and as a carbon additive in steelmaking. Its high fixed carbon content and low impurity levels make it ideal for these processes. In the chemical industry, it is used as a raw material for producing calcium carbide, silicon carbide, and other carbon-based chemicals. Additionally, blue-coke medium particle is increasingly used as a clean fuel in power plants and industrial boilers due to its low sulfur emissions and high calorific value (approximately 6,500-7,000 kcal/kg).
Safety and Storage
While blue-coke medium particle is generally stable, proper safety measures should be observed during handling and storage. The material can generate dust, which may pose inhalation hazards, so appropriate respiratory protection should be used in dusty environments. Storage should be in dry, well-ventilated areas away from open flames and heat sources. Although the material has low volatile content, it is still combustible and should be protected from ignition sources. Bulk storage should avoid excessive height to prevent compaction and potential spontaneous heating, though this risk is minimal compared to raw coal.
B2B Procurement Guide
When procuring blue-coke medium particle, buyers should pay attention to several key quality indicators. The fixed carbon content should be verified, with premium grades typically exceeding 82%. Sulfur and phosphorus levels should be as low as possible, especially for metallurgical applications. It's advisable to request product samples and third-party quality certificates before large purchases. Suppliers should be evaluated based on their production capacity, quality control processes, and ability to provide consistent particle size distribution. Transportation costs can be significant due to the bulk nature of the product, so proximity to the supplier should be considered. Current reference prices range approximately $200-$300 per ton, but this can vary based on quality and market conditions.
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