Natural Graphite Powder

Bituminous coal natural graphite powder is a finely ground form of graphite derived from bituminous coal. Here’s a detailed product description:

Composition: Bituminous coal natural graphite powder is primarily composed of carbon, with varying levels of impurities such as sulfur, ash, and moisture, depending on the source and processing method. It is characterized by its high carbon content, typically ranging from 70% to 90%.

Physical Properties:

Appearance: Fine, black powder with a smooth texture.

Particle Size Distribution: Consistent particle size distribution, ranging from micrometer to sub-micrometer scale.

Density: Moderate to high density, typically ranging from 1.5 to 2.3 g/cm³, depending on the degree of compression and processing.

Purity: High purity graphite powder with minimal levels of impurities, suitable for various industrial applications.

Conductivity: Excellent electrical conductivity due to its crystalline structure and carbon composition.

Lubricity: Natural graphite powder exhibits lubricating properties, making it suitable for use as a solid lubricant in various mechanical applications.

Manufacturing Process: Bituminous coal natural graphite powder is typically produced through a multi-step process that involves the extraction, purification, and milling of graphite ore derived from bituminous coal deposits. The ore is first crushed and ground into a fine powder, followed by flotation or chemical treatment to remove impurities and concentrate the graphite content. The concentrated graphite is then further processed through grinding and sieving to achieve the desired particle size distribution and purity.

Applications:

Lubricants: Bituminous coal natural graphite powder is widely used as a solid lubricant in automotive, industrial, and aerospace applications due to its low friction coefficient, high temperature resistance, and self-lubricating properties.

Foundry and Metallurgy: It serves as a carbon additive in foundry and metallurgical processes, where it acts as a recarburizer to enhance the carbon content and mechanical properties of cast iron and steel.

Batteries and Energy Storage: Natural graphite powder is utilized as an active material in lithium-ion batteries and other energy storage devices due to its high electrical conductivity and intercalation properties.

Coatings and Polymers: It is incorporated into coatings, paints, and polymer composites to impart electrical conductivity, thermal stability, and lubricating properties.

Refractories and Crucibles: Graphite powder is used as a refractory material in high-temperature applications, such as crucibles, furnace linings, and refractory bricks, due to its thermal conductivity and resistance to chemical erosion.

Conductive Inks and Pastes: It finds use in the formulation of conductive inks, pastes, and coatings for printed electronics, circuit boards, and electromagnetic shielding applications.

Packaging and Handling: Bituminous coal natural graphite powder is typically packaged in multi-layered bags or bulk containers to protect against moisture and physical damage during storage and transportation. It should be handled with care to avoid dust generation and inhalation, and stored in a dry, well-ventilated area away from heat sources and open flames.

Overall, bituminous coal natural graphite powder is a versatile carbonaceous material with a wide range of industrial applications, valued for its unique combination of properties, including electrical conductivity, lubricity, thermal stability, and chemical inertness.