Lithium Ore Process Plant
In the mining industry, a high gold recovery rate is the absolute lifeline of mine profitability. Even a minor miscalculation in process selection can lead to catastrophic lossesโsometimes leaving up to 30% to 40% of your gold trapped in the tailings.
CSTMG, a globally leading mineral processing equipment manufacturer and comprehensive system solution provider. We deliver full-lifecycle EPCO services.
Our core mission is to provide customized, highly efficient gold ore processing solutions. From the initial crushing and grinding stages to beneficiation and eco-friendly tailings management, we engineer every step to maximize your overall return on investment.
What Is Lithium Ore?
Lithium ore refers to naturally occurring rock or mineral deposit that contains lithium-bearing minerals in concentrations high enough to be economically mined and processed.
The most important minerals in lithium ore mining are spodumene (LiโOยทAlโOโยท4SiOโ) and petalite (LiโOยทAlโOโยท8SiOโ). Both minerals are found in granite pegmatitesโigneous rocks characterized by their coarse-grained texture and mineral composition dominated by quartz, feldspar, and mica.
It is the raw material from which lithium metal, lithium carbonate, and lithium hydroxide are extracted โ key ingredients used in batteries for electric vehicles, energy storage systems, and consumer electronics.
CSTMG Lithium Ore Plant Material Handling
Lithium ore is the primary raw material for lithium extraction, containing lithium-bearing minerals that power the global energy transition. The three main commercial sources are:
| Lithium Ore Type | Main Characteristics | Primary Process | Typical Processing Flow | Key Features & Index |
|---|---|---|---|---|
| Spodumene | โข High lithium grade โข Easy to beneficiate โข Main hard rock lithium ore | Flotation + DMS | Crushing โ Grinding โ Classification โ Positive Flotation โ Thickening โ Dewatering โ Drying | โข LiโO concentrate grade: 5.5% โ 7.5% โข Recovery rate: 80% โ 90% โข Mature, stable flotation process |
| Lepidolite | โข High mica & mud content โข Contains Rubidium, cesium โข More difficult to separate | Flotation + Magnetic | Crushing โ Grinding โ Desliming โ Reverse flotation โ Positive flotation โ Dewatering | โข LiโO concentrate grade: 3.5% โ 5.0% โข Recovery rate: 65% โ 78% โข Must remove slime first |
| Petalite | โข Low impurity โข High melting point โข Direct acid leaching possible โข Rare but high value | DMS + Flotation | Crushing โ Grinding โ Gravity Separation โ Magnetic Separation โ Flotation โ Drying | โข LiโO concentrate grade: 4.5% โ 6.0% โข Combined process for high purity โข Less reliance on flotation |
| Mixed Lithium Ore | / | Combined Process | Variable | โข Variable โข Complex process |
Why Lithium Ore Beneficiation?
Lithium ore beneficiation is essential for three core reasons, closely linked to the oreโs properties and industrial application needs:
1. Improve Lithium Grade for Efficient Extraction
Raw lithium ore (e.g., spodumene, petalite) naturally has low lithium contentโindustrial raw ore typically contains only 1%-2% LiโO, while spodumene concentrate needs to reach 6%-7.6% LiโO to meet smelting requirements. Beneficiation (mainly flotation) removes gangue minerals (such as quartz, feldspar) and impurities, concentrating lithium-rich minerals to enhance the grade, which is the prerequisite for efficient extraction of lithium salts (lithium carbonate, lithium hydroxide).
2. Reduce Smelting Costs and Environmental Impact
Low-grade raw ore directly enters smelting (pyrometallurgy or hydrometallurgy) will consume more energy, reagents and water, increasing production costs significantly. Beneficiation reduces the volume of materials that need to be smelted, lowers energy consumption and reagent usage, and also reduces waste emissions (e.g., tailings, wastewater) during the smelting process, achieving more environmentally friendly production.
3. Ensure Industrial Application Quality
Impurities in raw lithium ore (such as iron, magnesium, and heavy metals) can affect the quality of downstream products. For example, in lithium-ion battery production, high-purity lithium raw materials are required to ensure battery performance and safety. Beneficiation effectively removes harmful impurities, ensuring that the processed lithium products meet the standards of battery, ceramic, metallurgical and other industries.
Lithium Ore Gravity Beneficiation Plant
Gravity separation exploits the natural density difference between lithium minerals and silicate gangue. Because no chemicals are required and water consumption is minimal, the operational costs are significantly lower and environmental impact is reduced.
We design our gravity circuits based on your oreโs liberation characteristics and particle size distribution. If you have coarse-liberated spodumene, we prioritize Dense Media Separation (DMS); if you have fine-grained lithium, we integrate spiral concentrators or shaking tables as scavenging stages.
- CSTMG Lithium Ore Gravity Plant Solution: Jaw crusher โ cone crusher โ DMS cyclone/drum โ magnetic separator/spiral concentrator โ dewatering screen/filter press
- Performance: Rejects 40โ65% of waste rock upfront, reducing downstream flotation costs by 30โ50%.
- Best Suitable For: Spodumene pegmatite (coarse-liberated, LiโO 0.5โ3.5%)
- Not Suitable For: Lithium clays (hectorite) or ultra-fine grained ores
Lithium Ore Flotation Beneficiation Plant
Flotation is aย physico-chemical processย that selectively separates lithium minerals from gangue by making their surfaces hydrophobic. It is the most widely used and mature method for producing battery-grade lithium concentrate.
Ground ore slurry is conditioned with chemical reagents โ collectors attach to lithium mineral surfaces, frothers create stable bubbles, and depressants prevent gangue from floating. Air is introduced; hydrophobic lithium particles attach to bubbles and rise as froth concentrate.
- CSTMG Lithium Ore Flotation Plant Solution: Jaw crusher โ cone crusher โ ball mill/rod mill โ flotation machine โ conditioning tanks โ reagent dosing system โ thickener โ filter press
- Performance: Rejects 40โ65% of waste rock upfront, reducing downstream flotation costs by 30โ50%.
- Best Suitable For: Spodumene; lepidolite
- Not Suitable For: Coarse-liberated oresย โ gravity pre-concentration preferred first
Lithium Ore Magnetic Separation Plant
Magnetic separation is aย purification stepย that removes iron-bearing impurities (FeโOโ) from lithium concentrate. Even small iron contamination can downgrade concentrate quality and fail downstream smelter specifications.
Strong magnetic fields attract ferromagnetic and paramagnetic minerals (tourmaline, biotite, iron oxides, magnetite) while allowing non-magnetic spodumene and feldspar to pass through.
- Key Equipment:ย Low-intensity magnetic separator (LIMS) โ removes tramp steel and strongly magnetic minerals; High-intensity magnetic separator (HIMS) โ captures weakly magnetic iron-bearing impurities; Wet high-intensity magnetic separator (WHIMS) โ for fine particle processing.
- Performance: Reduces FeโOโ content to <0.5% | Improves concentrate purity without affecting lithium recovery.
- Best Suitable For: Post-flotation concentrate; lepidolite ores; iron-contaminated spodumene
- Not Suitable For: Primary concentration method
Lithium Ore Combined Beneficiation Plant
The combined process integrates multiple technologies โ typicallyย DMS + Flotation + Magnetic Separationย โ into one optimized flowsheet. No single method alone delivers both high recovery and battery-grade concentrate; combined processes leverage each technologyโs strengths.
DMS removes waste (40โ65% mass rejection) pre-concentrating the feed, Flotation achieves deep upgrading to LiโO โฅ6.0%, and Magnetic Separation removes iron impurities for final purification.
- CSTMG Lithium Ore Combined Plant Solutions: Crushing โ DMS (pre-concentration) โ Flotation (primary recovery) โ Magnetic (purification) โ Dewatering
- Performance: Recovery 80โ92% | Concentrate grade LiโO 6.0โ7.0% | FeโOโ <0.5%.
- Best Suitable For: Most hard-rock lithium deposits; low-grade ores (LiโO 0.5โ1.5%); variable/mineralogically complex ores
CSTMG Lithium Ore Plant Processing Capacity
CSTMG lithium ore plant is designed for hard rock lithium ore processing with stable adaptability to different minerals, grades, impurities and physical properties, ensuring high recovery and qualified concentrate for downstream smelting.
Lithium Minerals We Process
We handle three major industrial lithium-bearing minerals with customized flowsheets:
- Spodumene (LiโO 5.8%โ8.1% theoretical): High-density, high-lithium main feed for battery-grade lithium salts.
- Lepidolite (LiโO 3.2%โ6.45%): Mica-type lithium ore with common K, Rb, Cs associated elements.
- Petalite (LiโO 2.9%โ4.8%): Low-iron, low-mud feldspar-type lithium ore suitable for high-purity applications.
Our lithium ore process equipment also accept mixed lithium ores with two or three minerals coexisting.
Ore Grades We Process
Our plant covers a wide grade range for run-of-mine (ROM) feed:
- Low grade: LiโO 0.7%โ1.2% (difficult-to-select lepidolite ore)
- Medium grade: LiโO 1.2%โ2.0% (general spodumene & mixed ore)
- High grade: LiโO 2.0%โ3.5% (high-quality spodumene)
After beneficiation, our lithium ore line produces concentrate with LiโO โฅ 5.0%โ6.0% (up to 7.5% for high-grade spodumene) to meet pyrometallurgy and hydrometallurgy standards.
Impurities Our Beneficiation Plants Tolerate & Remove
Our plants efficiently process ores with common gangue and harmful impurities:
- Gangue impurities: Quartz, feldspar, albite, mica, calcite, dolomite
- Harmful impurities: Iron (FeโOโ), magnesium (MgO), manganese, heavy metals
- Special impurities: Fluorite, tourmaline, clay minerals
Our flotation + magnetic separation + de-ashing system removes most impurities to meet battery-grade raw material requirements.
Physical Properties Adaptation
Hardness
- Spodumene: Mohs hardness 6.5โ7 (hard, competent ore)
- Lepidolite & petalite: Mohs hardness 3โ5 (soft, layered ore)
We use stage crushing and controlled grinding to avoid over-crushing and slime formation.
Slime & Moisture
- Acceptable slime content: โค15%
- Feed moisture: โค12%
High-mud lepidolite is treated with pre-desliming and sedimentation to stabilize flotation recovery.
CSTMG Lithium Ore Beneficiation Machines For Sale
CSTMG Lithium Ore Pre-Beneficiation Equipment For Sale
Global Market Solutions: Regional Expertise and Commercial Needs
Whether youโre developing a greenfield lithium mine or upgrading an existing facility, our turnkeyย lithium ore process plantย solutions are engineered to meet the most demanding project requirements โ from 50 TPD pilot plants to 5,000+ TPD commercial operations.
What Is A Lithium Ore Benefication Plant?
Aย lithium ore beneficiation plantย is a mineral processing facility designed to separate lithium-bearing minerals โ primarily spodumene (LiAlSiโOโ), lepidolite, and petalite โ from host rock and gangue minerals. The goal is to produce a high-gradeย lithium concentrateย (typically LiโO โฅ 5.0โ6.5%) that can be further processed into battery-grade lithium carbonate (LiโCOโ) or lithium hydroxide (LiOH).
With global lithium demand driven by EV batteries, energy storage systems, and consumer electronics, a well-designedย lithium ore process plantย is the critical link between raw ore in the ground and the clean energy economy.
How Does A Lithium Ore Beneficiation Plant Work?
We provide a complete, integratedย lithium ore beneficiation processย covering every stage from run-of-mine ore to final concentrate:
Stage 1 โ Crushing & Screening
Raw lithium ore is reduced in size through a multi-stage crushing circuit (jaw crusher โ cone crusher โ vibrating screen), achieving a product size of typically 10โ20 mm for downstream processing. Proper size reduction is critical to maximize mineral liberation without over-grinding.
Stage 2 โ Grinding & Classification
The crushed ore enters a ball mill or rod mill circuit, ground to a target particle size of 0.074โ0.15 mm (100โ200 mesh). Hydrocyclones and spiral classifiers control the grinding product size, ensuring optimal liberation of lithium minerals from gangue.
Stage 3 โ Dense Media Separation (DMS) (Pre-concentration)
For spodumene ores,ย Dense Media Separationย is applied as a pre-concentration step. Using a ferrosilicon medium, DMS exploits the density difference between spodumene (3.1โ3.2 g/cmยณ) and waste silicates (2.6โ2.7 g/cmยณ), rejecting up to 40โ60% of feed mass as waste before flotation โ dramatically reducing reagent consumption and flotation circuit size.
Stage 4 โ Froth Flotation (Core Process)
Froth flotationย is the heart of any lithium ore process plant. Our flotation circuits use carefully selected collectors, frothers, and depressants to selectively float lithium minerals:
- Spodumene flotation:ย Amine-based collectors (e.g., dodecylamine) at alkaline pH (9โ11), with sodium hydroxide activation after thermal treatment (calcination at 1050ยฐC for alphaโbeta spodumene conversion)
- Lepidolite flotation:ย Cationic collectors targeting mica-group minerals, with careful pH control
- Reverse flotation:ย Depressing lithium minerals while floating silica/feldspar gangue for high-purity concentrates
Typical flotation recovery: 78โ88% | Concentrate grade: LiโO 5.5โ6.5%
Stage 5 โ Magnetic Separation (Purification)
High-intensity magnetic separators (HIMS, 8,000โ15,000 Gauss) remove iron-bearing minerals (tourmaline, biotite, iron oxides) that contaminate the lithium concentrate. This step is essential for meeting downstream smelter specifications and improving final product value.
Stage 6 โ Gravity Separation (Optional)
For coarser-grained ores,ย gravity separationย using shaking tables or spiral chutes provides an energy-efficient pre-concentration or scavenging option, recovering coarse lithium particles that may be lost in flotation.
Stage 7 โ Dewatering & Tailings Management
The final lithium concentrate is dewatered via thickeners and vacuum disc filters to achieve a moisture content of โค12%, ready for transport or further hydrometallurgical processing. Our plants incorporateย dry-stack tailings systemsย to minimize water consumption and environmental footprint.
Why Choose Our Lithium Ore Beneficiation Plant?
โ Proven Recovery Rates โ Achieve LiโO recovery of 80โ88% with concentrate grades meeting international smelter specifications
โ Turnkey EPC Delivery โ We handle everything: process design, equipment supply, civil construction, installation, commissioning, and operator training
โ ย Scalable Capacityย โ Modular plant designs from 100 TPD pilot plant to 5,000+ TPD, expandable as your mine production grows
โ Ore-Specific Process Design โ Every plant is preceded by detailed metallurgical testwork (bench-scale โ pilot plant) to optimize the flowsheet for your specific ore
โ Low Operating Cost โ DMS pre-concentration reduces reagent and energy costs; water recycling systems cut fresh water consumption by up to 75%
โ Global Project Experience โ Successfully delivered lithium beneficiation plants in Australia, Africa, South America, Central Asia, and China
โ After-Sales Support โ Spare parts supply, remote process optimization, and on-site technical service available worldwide
Hรคufig gestellte Fragen
Q: What is the difference between spodumene and lepidolite processing?
A: Spodumene typically requires a thermal activation step (calcination) before flotation to convert alpha-spodumene to the more floatable beta form. Lepidolite, being a mica mineral, uses different collector chemistry and does not require calcination. Both can achieve high recovery rates with the correct flowsheet design.
Q: How long does it take to build a lithium ore process plant?
A: A standard 500 TPD plant typically requires 12โ18 months from contract signing to commissioning, including 2โ3 months for metallurgical testwork, 3โ4 months for engineering design, and 6โ8 months for equipment fabrication and site construction.
Q: Can your plant process low-grade lithium ore?
A: Yes. Our DMS pre-concentration technology is particularly effective for low-grade ores (LiโO 0.5โ1.2%), significantly improving the economics of processing marginal deposits.
Q: Do you provide metallurgical testwork services?
A: Absolutely. We offer complete ore characterization and beneficiation testwork services, from mineralogical analysis and bench-scale flotation tests to continuous pilot plant campaigns, providing the data needed to design an optimized commercial plant.
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