Lithium ore production line and process flow solution

Lithium ore beneficiation process, lithium ore production line equipment configuration, lithium ore beneficiation equipment

I. Overview of lithium ore beneficiation process

Lithium ore as a key strategic resource in the new energy era, its lithium ore beneficiation process technology directly affects the resource utilization rate and economic benefits. For different types of lithium ore (lithium pyroxene, lithium mica, etc.), we have developed a variety of lithium ore beneficiation process programs, including flotation, magnetic separation, heavy media beneficiation and joint beneficiation, to meet the different characteristics of the ore and production needs.

Second, lithium ore beneficiation process flow

1. lithium ore flotation process

Flotation is the main method of lithium ore sorting, especially for fine grained dipping lithium ore.

• Positive flotation process:

  • Grinding to suitable fineness (avoid over-grinding)

  • Strong alkaline environment (NaOH adjustment of pH)

  • High concentration stirring desliming

  • Oleic acid and its soap salts as trapping agent

  • Direct flotation of lithium concentrate

• Reverse flotation process:

  • Lime creates alkaline environment

  • Starch/dextrin inhibits lithium flotation

  • Cationic collector flotation of chalcopyrite

  • HF/resinate iron removal (optional)

Technical advantage: applicable to various industrial value lithium ores, high recovery rate

2. Lithium ore magnetic separation process

Mainly used to remove iron containing impurities in lithium pyroxene.

• Process flow:

  • Crushing and grinding pretreatment

  • Weak magnetic separation (0.6-0.8T) in addition to strong magnetic minerals

  • Strong magnetic separation (1.4-1.8T) to remove weakly magnetic minerals

  • Getting low iron lithium pyroxene concentrate

Technical advantages: simple operation, convenient control, strong adaptability.

3. Lithium ore heavy media beneficiation method

Suitable for lithium pyroxene with coarse crystallization size.

• Process flow:

  • Ore washing and desliming pretreatment

  • Mixing with heavy suspension (ferrosilicon/magnetite)

  • Heavy media cyclone sorting (0.05-0.20Mpa)

  • Separation of concentrate and tailings by demixing screen

Technical advantage: cost reduction of about 40%, recovery increased by 2.48 percentage points

4. Combined beneficiation process for lithium ore

For the development of complex associated lithium ore.

• Combined flotation-magnetic separation:

  • Flotation to obtain lithium pyroxene crude concentrate

  • Strong magnetic separation to remove iron purification

• Combined flotation-magnetic separation-gravity separation:

  • Gravity separation to remove heavy minerals such as tantalum, niobium, etc.

  • Flotation to obtain lithium concentrate

  • Magnetic separation for final iron removal

• Combined magnetic-flotation (lithium mica):

  • Pre-enrichment by high gradient magnetic separation

  • Flotation for further purification

  • Superconducting magnetic separation for fine sludge

Technical advantage: high comprehensive recovery rate, maximize resource utilization rate

Third, the key configuration of lithium ore dressing production line equipment

Fourth, lithium production line process technology advantages

1. High efficiency recovery:

   • Recovery rate of flotation method can reach more than 85%.

   • Reduce the cost of heavy media method by 40

2. Energy saving and environmental protection:

   • Heavy media method without pharmaceutical additives

   • Combined process to realize no tailing

3. Strong adaptability:

   • Covering lithium pyroxene, lithium mica and other types of lithium ore

   • Wide range of processing particle size (0.02-30mm)

V. Production example analysis

Case 1: a lithium ore project in Northwest China (heavy media method)

• Ore characteristics: lithium pyroxene, coarse crystallization

• Process flow:

  • Heavy media cyclone sorting

  • Separation by de-mediaizing sieve

• Operation index:

  • Lithium grade > 5%

  • Cost Reduction 40

Case 2: A lithium project in Zimbabwe (flotation method)

• Production scale: 2 million tons/year

• Product program:

  • Turbidite feldspar concentrate (Li₂O 4.3%)

  • Lithium pyroxene concentrate (Li₂O 5.5%)

Case 3: A lithium mica project in Hunan (combined magnetic-float)

• Innovative process:

  • Pre-enrichment by high gradient magnetic separation

  • Superconducting magnetic separation processing fine mud

• Technical index:

  • Li₂O recovery rate of 77.62%

  • Concentrate grade 2.22

Lithium ore beneficiation technical service support

Provide a full range of lithium ore beneficiation production line and process solutions:

1. Ore test:

   • Lithium ore testing

   • Lithium ore selectivity test, test report

2. Engineering design:

   • Lithium ore beneficiation process design

   • Lithium ore production line equipment selection and configuration

   • Lithium ore project site planning, drawing design

3. Production installation:

   • Lithium ore beneficiation equipment supply

   • Engineers to guide the installation, commissioning

   • Operation training

4. Environmental protection program:

   • Tailings treatment design

   • Waste water recycling

Seven, lithium ore beneficiation process selection recommendations

1. Ore Suitability:

   • Lithium pyroxene: flotation/heavy media method

   • Lithium mica: combined magnetic-flotation

   • Complex ore: multi-process combination

2. Investment Recommendations:

   • Small and medium-sized mines: simplified process

   • Large mines: fully automatic configuration

We can choose the most suitable lithium ore beneficiation process according to the nature of the specific lithium ore, to ensure that the recovery rate and technical and economic indicators are optimal, welcome to consult to get the lithium ore beneficiation production line program and quotation.