Graphite Ore Production Line and Process Solution

Graphite Ore Production Line Solution focuses on preserving the graphite flake structure while maximizing fixed carbon content.

Our solution employs "Multi-stage Grinding and Multi-stage Flotation". It ensures high recovery (85-92%) and high concentrate grade (>92%), meeting the demands for lithium battery anodes and refractories.

Method 1: Multi-Stage Flotation (Standard)

Best for Crystalline Flake Graphite (>5% fixed carbon).

• Process: 3-Stage Crushing -> 2-Stage Grinding -> Roughing -> 9-Stage Cleaning -> 3-Stage Scavenging.
• Key Tech: Low-speed grinding protects flakes. Scale breakage rate < 5%.
• Result: Concentrate Grade > 92%.

Method 2: Gravity + Flotation (For Mixed Ores)

Suitable for low-grade ore (5-8%) containing heavy minerals like Pyrite.

• Gravity Sep: Use Jigs to remove heavy pyrite first.
• Flotation: Purify the light graphite fraction.
• Benefit: Increases recovery by 15% and reduces cost by 22%.

Method 3: Multi-Stage Grinding (High Purity)

For high-end applications requiring maximum purity.

• Process: 9-stage progressive milling + "1 coarse, 1 sweep, 9 concentrates" flotation.
• Tech: Ultrasonic assisted dissociation.
• Result: Fixed Carbon 92.3%, Recovery 87.9%.

Project: Jiangxi Graphite Plant (300,000 t/y)

Using our Gravity-Flotation Combined Process for low-grade ore:

• Raw Ore: 5-8% Fixed Carbon.
• Recovery: Increased by >15%.
• Cost: Reduced by 22%.

Q1: Why is "Stage Grinding" used for Graphite?

A: Large graphite flakes are much more valuable than fine powder. Continuous grinding destroys these flakes. Stage Grinding (grind -> float -> regrind concentrate) ensures we recover large flakes as soon as they are liberated, without over-grinding them.

Q2: What reagents are used in Graphite flotation?

A: Typical collectors are Kerosene or Diesel Oil (non-polar hydrocarbons). Frothers include Pine Oil or #2 Oil. Inhibitors like lime or water glass are used to depress pyrite or quartz.

Q3: Can you achieve 99% purity?

A: Physical beneficiation (flotation) typically reaches 94-96% purity. To reach 99%+ (Battery Grade), chemical purification (acid/alkali leaching) or thermal purification is required after the flotation plant.

Get Your Custom Graphite Plant Design

We specialize in protecting your flake size while maximizing recovery.
Contact us for a "One Mine, One Policy" solution and quotation.

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