Lithium processing solutions

Lithium ore beneficiation solutions: empowering core resource extraction in the new energy era

I. Overview: the technical key to unlock the value of lithium resources

Under the wave of global energy transformation and the rapid development of new energy automobile industry, lithium, as the "white oil" of the 21st century, is becoming more and more prominent in its strategic position. Efficient lithium beneficiation solutions are the key to ensuring a stable supply of lithium resources and reducing extraction costs. We focus on all types of lithium deposits (lithium pyroxene, lithium mica, lithium feldspar, etc.) to provide customized beneficiation solutions, through the technical combination of flotation, magnetic separation, re-election and joint processes, to overcome the fine-grained embedded, complex symbiosis, impurities and other beneficiation problems, and is committed to achieving the highest lithium recovery, optimal concentrate grade and lowest production costs for customers, to maximize the economic benefits of the project.

Second, the core process: according to the "mine" appropriate scientific ratio

We have comprehensive technical reserves, and can accurately match the most effective process route according to the characteristics of the ore (mineral composition, embedded particle size, symbiotic relationship).

1. Flotation: the mainstream and highly efficient classic process

• Positive flotation process:

  • Applicable: lithium pyroxene, lithium mica, etc.

  • Process: After grinding the raw ore finely, stirring and desliming in high concentration under strong alkaline (NaOH) environment, adopting oleic acid type of collector to preferentially flotation lithium minerals.

  • Advantage: mature technology, high recovery rate, widely used.

• Reverse flotation process:

  • Applicable: ore with more complex vein minerals.

  • Process: inhibit lithium minerals with starch and other inhibitors, use cationic collector to float silicate and other vein minerals, lithium minerals remain in the tank as concentrate.

  • Advantage: It is good for obtaining high grade concentrate, especially suitable for ores with high iron impurities.

2. Magnetic Separation: a powerful tool for high efficiency iron removal and quality improvement

• Application: Remove the ferromagnetic impurities (such as iron lithium mica, hematite) in lithium pyroxene concentrate, and improve the product grade.

• Process: Adopt high gradient magnetic separator, successively remove strong magnetic minerals by weak magnetic separation (~0.7T) and weak magnetic minerals by strong magnetic separation ( 1.4-1.8T ).

• Advantage: simple operation, no pollution, convenient control, is the key step in the production of chemical-grade, battery-grade high-purity lithium concentrate.

3. Heavy media beneficiation method: the first choice for low-cost treatment of coarse-grained ores

• Applicable: lithium pyroxene ore with coarse mineral crystallization size (>0.5mm) and high degree of monomer dissociation.

• Process: After crushing the raw ore and mixing with heavy suspension (e.g. ferrosilicon), the ore is separated by density difference in heavy media cyclone, the light product is tailings, and the heavy product is lithium concentrate.

• Advantage: no chemicals, the cost can be reduced by about 40%, environmental protection and high sorting efficiency.

4. Combined process: comprehensive means to cope with complex resources

• Combined flotation-magnetic separation: flotation to obtain coarse concentrate, and then magnetic separation to remove iron in depth, is the classic combination of lithium pyroxene purification.

• Combined magnetic separation-flotation: For lithium mica ore, high gradient magnetic separation is used to pre-enrich the ore, and then it is selected by flotation, which greatly improves the recovery rate and grade.

• Combined re-election-flotation-magnetic separation: for tantalum-niobium-lithium and other polymetallic ores, first re-election recovers tantalum-niobium, then lithium flotation, and finally magnetic separation removes iron, realizing comprehensive recovery of resources.

III. Configuration of core equipment: reliable and efficient equipment guarantee

Fourth, the core advantages of the solution

• Leading technology, high recovery rate:
  With the advanced pharmaceutical system and joint process, the recovery rate of lithium pyroxene flotation can reach more than 85%; the joint process can realize the comprehensive recovery rate of lithium mica and other difficult-to-elect resources more than 75%.

• Energy saving and consumption reduction, significant cost advantage:
  Heavy media sorting process can reduce the cost of mineral processing by about 40%; energy-saving ball mill, high-efficiency magnetic separator and other equipment significantly reduce power consumption.

• Green environmental protection, sustainable development:
  No chemicals are added to the re-election and magnetic separation processes; it provides wastewater recycling (water reuse rate >90%) and tailings comprehensive utilization solutions, helping the construction of green mines.

• Flexible adaptation, fast return on investment:
  Provide modularized design solutions from small and medium-sized simple production lines to large-scale fully automated beneficiation plants, with flexible investment scale and short payback period.

V. Successful cases of global verification

1. A large lithium pyroxene mine project in northwest China:

   • Challenge: Low grade of raw ore and coarse crystallization size.

   • Solution: Adopting the core process of " heavy media cyclone sorting ".

   • Result: Final lithium concentrate Li₂O grade >5%, beneficiation cost reduced by 40%, with remarkable economic benefits.

2. A polymetallic lithium mine project in Zimbabwe:

   • Scale: annual processing capacity of 2 million tons.

   • Program: "Flotation" process.

   • Product: Stable production of Li₂O 4.3% lithium feldspar concentrate and Li₂O 5.5% lithium pyroxene concentrate.

Our Service Commitment: Full Expert Companionship

We provide "one-stop" service throughout the whole life cycle of the project:

1. Ore characterization: sample testing, detailed process mineralogical analysis and selectivity testing.

2. Engineering design: Based on the test results, we carry out process design, equipment selection calculation and 3D layout planning.

3. Equipment Supply and Integration: Provide all core main equipment and auxiliary equipment.

4. Construction and Operation Support: Expert team on-site to guide installation, commissioning, and start-up, and provide comprehensive technical training.

5. Environmental protection and sustainable development: Provide a full set of environmental protection programs such as tailings dry stacking, wastewater recycling, and dust management.

Please provide the lithium ore test report, our technical experts will make the initial assessment for you, and customize the most economic and efficient lithium ore dressing solution with detailed quotation.