Graphite is a critical mineral with wide-ranging applications in new energy, metallurgy, refractories, batteries, lubricants, and advanced materials. As global demand grows, efficient and adaptable processing technologies have become more important than ever.
The graphite mining process is not one-size-fits-all. Depending on the ore type and associated minerals, different processing methods must be applied. The main techniques include gravity separation, froth flotation, electric separation, or a combination process. Among these, froth flotation remains the most widely used, producing graphite concentrates with a grade of 90%–97%.
Key Processing Solutions:
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Multi-stage Grinding & Multi-stage Flotation
To protect valuable graphite flakes from over-grinding, multi-stage processing is adopted. This ensures higher concentrate quality and reduces losses. -
Gravity Separation–Flotation Combined Flow
For ores containing heavy minerals, gravity separation is first applied to remove impurities, followed by flotation to recover graphite from the remaining tailings. -
Graphite Processing Equipment
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Crushing: Jaw crushers for coarse crushing; cone or hammer crushers for fine crushing.
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Grinding: Wet ball mills and grid ball mills for efficient size reduction.
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Flotation: Commonly used JJF, XCF, and XJB flotation cells.
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Dewatering: Hydrocyclones and belt filters for concentrate recovery.
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Flotation Reagents
Collectors such as kerosene, diesel, and heavy oils, along with foaming agents like No.2 and No.4 oils, are commonly used to maximize flotation efficiency.
Application Scope
These processing solutions are suitable for various graphite ores, including crystalline graphite and ores containing silicate minerals like mica and pyrite.
As industries—from electric vehicles to energy storage—continue to expand, the role of advanced graphite mining and processing technologies becomes even more crucial.
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