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Spodumene Lithium Extraction for Battery Manufacturing

What is Spodumene Lithium?

 

Spodumene is a lithium-bearing mineral found in hard rock formations, primarily in Australia, Canada, and parts of Africa. It accounts for approximately 50–60% of global lithium production. Another hard rock source is lepidolite, a lithium-rich mica mineral found in granite pegmatites.

 

How is Lithium Extracted from Spodumene?

 

The process of extracting lithium from spodumene concentrate involves:

 

  1. Mining and Concentration: Spodumene is mined and concentrated.
  2. High-Temperature Roasting: The concentrate is roasted to convert alpha-spodumene to beta-spodumene.
  3. Chemical Treatment: The roasted material undergoes acid or alkaline leaching to produce lithium carbonate or lithium hydroxide.
  4. Purification: Final products are purified to meet battery-grade standards.

Challenges in Lithium Extraction from Spodumene (hard rock)

 

Extracting lithium from spodumene concentrate presents several challenges:

 

  • Achieving high recovery rates of battery-grade lithium.
  • Managing material loss during complex processing.
  • Ensuring purity and crystallization of the final product.
  • Maintaining reliability and cost-efficiency amid fluctuating ore compositions.

Filtration’s Role in Spodumene Lithium Processing

 

Filtration is critical in the spodumene lithium extraction process. It enhances:

 

  • Process reliability.
  • Product yield.
  • Reduction of rework and operating costs.

 

Pall Corporation: Filtration Experts in Spodumene Lithium Extraction

 

Pall Corporation offers filtration technologies tailored to spodumene concentrate processing. These solutions remove solid particulates and dissolved impurities, resulting in high-purity lithium suitable for EV batteries.

 

  • Hard rock to Lithium Carbonate

  • Hard rock to Lithium Hydroxide

 

Typical Process Flow Sheet for Lithium Carbonate from Hard Rock

 

 

FilterFiltration ValueSeparation Product
1Remove solid particulate from furnace flue gas to prevent emissionsGas Blowback Filter
2Prevent ingression of tailings impurities and carryover sand into system from upstream processes1 - 5 Micron Filter
3Prevent ingression of impurities into system from injected precipitation chemicals1 - 5 Micron Filter
4Protect Ion Exchange (IX) and crystallizer from carryover solids coming from the filter pressRegenerable Filter
5Remove trace solids and Ion Exchange resin fines before the crystallizer1 Micron Filter
6Prevent ingression of impurities into system from injected Sodium Carbonate solution1 - 5 Micron Filter
7Recover fine particles of Lithium Carbonate from mother liquor recycle streamRegenerable Filter

 

 

Typical Process Flow Sheet for Lithium Hydroxide from Hard Rock

 

 

FilterFiltration ValueSeparation Product
1Remove solid particulate from furnace flue gas to prevent emissionsGas Blowback Filter
2Prevent ingression of tailings impurities and carryover sand into system from upstream processes1 - 5 Micron Filter
3Prevent ingression of impurities into system from injected precipitation chemicals1 - 5 Micron Filter
4Protect Ion Exchange (IX) and crystallizer from carryover solids coming from the filter pressRegenerable Filter
5Prevent ingression of impurities into system from injected Sodium Hydroxide solution1 - 5 Micron Filter
6Recover fine particles of Lithium Hydroxide from mother liquor recycle streamRegenerable Filter

 

Explore how Pall’s filtration solutions can support your spodumene lithium applications. Contact our experts to improve your process efficiency and product quality.

Improve Lithium Yield from Spodumene Concentrate – Get a Custom Filtration Solution

  • Lithium Processing- Hardrock to Lithium Carbonate filtration solution

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