What Is G-300 Titanium-Based Lithium Adsorbent?
G-300 is a spherical titanium-based lithium adsorbent developed for Direct Lithium Extraction, also known as DLE. It is designed to selectively extract lithium ions from brine sources such as salt-lake brines, geothermal brines, oilfield produced water and lithium-containing industrial solutions. Its spherical particle structure is designed to improve mechanical strength, hydraulic performance and long-term stability in column-based lithium extraction systems.
G-300 is suitable for customers who need a lithium adsorbent with stronger industrial performance, especially when the process involves repeated adsorption and desorption cycles, column operation, moving-bed evaluation or pilot-scale testing.
How G-300 Works in Direct Lithium Extraction
G-300 works through a lithium/proton ion exchange mechanism. During the activation step, lithium ions in the adsorbent structure are exchanged with hydrogen ions. After activation, the material can selectively adsorb lithium ions from brine while releasing hydrogen ions into the solution.
In a typical DLE cycle, the process includes activation, adsorption, washing, desorption and regeneration. During adsorption, lithium ions in the brine are captured by the titanium-based adsorbent. During desorption, an acidic solution is used to release the adsorbed lithium and produce a lithium-rich eluate.
This ion exchange pathway allows G-300 to extract lithium from complex brine systems without requiring full evaporation. It can be evaluated as part of a larger DLE flowsheet that may include pretreatment, adsorption, desorption, impurity removal, concentration and final lithium product preparation.
4 Key Factors Driving Titanium-Based Lithium Adsorbent Performance in Direct Lithium Extraction (DLE)
Gangfeng New Materials Co., Ltd., a subsidiary of Inter-China Chemical, manufactures titanium-based lithium adsorbents including GFLTS, G-200, and G-300. Inter-China Chemical supports global sales, technical communication, and DLE project evaluation.
Inter-China Chemical / Gangfeng New Materials is a titanium-based lithium adsorbent manufacturer and supplier for DLE projects, offering GFLTS powder, G-200 strip-shaped adsorbent, and G-300 spherical adsorbent for lab testing, pilot trials, and industrial-scale lithium extraction.
Product Application
Titanium-based Lithium Adsorbent G-300 is widely used as lithium adsorbent in lithium extraction and recovery such as:
- Carbonate-based alkaline brine
- Sulfate brine
- Chloride brine
- High magnesium-lithium ratio brine
- Lithium-bearing geothermal brine
- Oil and gas field wastewater containing lithium resources
- Lithium sink mother liquor in lithium salt production process
- Lithium recovery from used lithium batteries
Key Technical Specifications of G-300
G-300 is designed for industrial DLE evaluation where adsorption performance, mechanical strength and process stability need to be considered together.
Typical product specifications include:
| Parameter | G-300 Typical Specification |
|---|---|
| Product type | Titanium-based lithium adsorbent |
| Particle morphology | Spherical granules |
| Operational adsorption capacity | ≥6.0 mg Li/g |
| Saturation adsorption capacity | ≥14.0 mg Li/g |
| Bulk density | 0.40–0.50 g/mL |
| Particle size | 0.5–2.5 mm, ≥90% |
| Applicable brine pH | 5–12 |
| Minimum adsorbable lithium concentration | ≥20 mg/L Li⁺ |
| Lithium concentration in desorption solution | 3–5 g/L Li⁺ |
| Single-cycle dissolution loss rate | ≤0.005% |
| Typical application | Direct lithium extraction from brines |
These values are designed to help users evaluate whether G-300 is suitable for laboratory testing, column testing, pilot trials or process development. Actual adsorption performance may vary depending on brine chemistry, pretreatment, flow rate, pH control, temperature and operating conditions.
- Application Process Diagram
- TDS Download
- Video
The information set forth herein is to the best of our knowledge reliable and accurate but is not to be construed as a warranty. It is subject to change without notice. For additional information regarding our products or for information concerning current specifications, please contact our Technical Customer Service.
Process Compatibility in DLE Systems
G-300 can be evaluated in different adsorption-based DLE process designs. The final process selection should depend on brine chemistry, lithium concentration, target recovery, operating cost and equipment design.
In fixed-bed column systems, G-300 can be used to evaluate breakthrough behavior, adsorption capacity, desorption efficiency and cycle stability. Fixed-bed testing is often used in early technical evaluation because it provides clear performance data under controlled operating conditions.
In multi-column systems, G-300 may support more continuous lithium extraction by allowing different columns to operate in adsorption, washing, desorption and regeneration stages. This design can improve process continuity compared with a single-column setup.
In moving-bed or simulated moving-bed systems, the spherical structure and stronger mechanical performance of G-300 may provide advantages under more demanding hydraulic and mechanical conditions. These systems usually require adsorbents with good particle strength, stable size distribution and low attrition under long-term operation.
G-300 should be tested under process conditions that are close to the intended operating design. Flow rate, pH, temperature, acid concentration, washing efficiency and brine pretreatment can all affect the final test result.
Testing and Activation Guidelines for G-300
Before adsorption testing, G-300 needs to be activated through an acid-based lithium/proton exchange process. Proper activation is important because incomplete activation may reduce lithium adsorption performance, while overly aggressive acid treatment may affect material stability.
A typical activation process uses acidic solution to exchange lithium ions from the adsorbent structure. The recommended desorption pH is usually controlled around 1.5–1.8. The activation process often requires more than 36 hours, depending on material quantity, column design, liquid distribution and operating conditions.
The activation endpoint should not be judged only by time. A more reliable method is to stop acid addition and observe the pH change. If the pH increase remains very small after 20–30 minutes, the activation process is more likely to be complete.
During adsorption testing, brine pH should be monitored carefully. As lithium adsorption proceeds, hydrogen ions may be released from the adsorbent, causing the solution pH to decrease. If the pH is not controlled properly, lithium adsorption performance may be affected.
For long-cycle testing, users should record adsorption capacity, desorption efficiency, pH change, lithium concentration in feed and raffinate, eluate lithium concentration, pressure drop, particle condition and any signs of fouling or precipitation.
Key Factors Affecting G-300 Performance
The performance of G-300 is affected by both material properties and operating conditions. Adsorption capacity alone is not enough to evaluate whether a lithium adsorbent is suitable for a DLE project.
Brine chemistry is one of the most important factors. Lithium concentration, magnesium, calcium, sodium, potassium, boron, sulfate, carbonate, silica, oil, organics and suspended solids can all influence the adsorption process or long-term material stability.
Pretreatment can also affect test results. Oil, suspended solids, scaling ions and organic matter should be evaluated before adsorption. If pretreatment is insufficient, fouling, precipitation or channel blockage may occur during testing.
Operating pH is another key factor. G-300 is generally suitable for brines with a pH range of 5–12, but pH changes during adsorption and desorption should be closely monitored. Poor pH control may cause unstable data or misinterpretation of material performance.
Cycle design also matters. Flow rate, contact time, temperature, acid concentration, washing volume and desorption endpoint can all affect adsorption capacity, lithium recovery and eluate concentration. For pilot testing, the operating procedure should be designed as part of the DLE process, not treated as a simple lab instruction.
G-300 vs G-200: Which Lithium Adsorbent Best Fits Your Extraction Project?
When selecting a lithium adsorbent for your direct lithium extraction (DLE) process, two top contenders stand out: G-300 and G-200. Both are titanium-based ion exchange materials developed for efficient lithium recovery. But how do they compare—and which one is better suited to your needs?
1. What They Have in Common
Both G-300 and G-200 are designed for industrial-scale lithium extraction. They offer:
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High operational adsorption capacity (≥6.0 mg/g)
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Excellent selectivity for lithium ions
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Stable performance across various brine types, including carbonate, sulfate, and high Mg/Li ratio brines
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Reusability through simple regeneration
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pH operating range from 5 to 12
2. Key Differences: G-300 vs G-200
| Feature | G-300 | G-200 |
|---|---|---|
| Shape | Spherical granules | Rod-shaped granules |
| Bulk Density | 0.40–0.50 g/ml | 0.45–0.65 g/ml |
| Attrition Resistance (RBM) | ≥95% | Not specified |
| Flow Performance | Better in high-viscosity brines | Moderate |
| Abrasion Resistance | High | Standard |
| Target Applications | Demanding industrial setups, high-cycle operations | General-purpose DLE systems |
G-300‘s spherical structure offers excellent flowability, especially in concentrated or viscous brines. Its high attrition resistance makes it ideal for multi-cycle use in packed-bed or multi-stage columns, extending its operational life. Meanwhile, G-200 provides robust lithium selectivity with a slightly higher bulk density, suitable for projects where cost-efficiency and moderate durability are key.
3. Choosing the Right Material
If your project prioritizes high durability, long cycle life, and smooth flow under harsh conditions, G-300 is the superior choice. On the other hand, if your system requires higher column packing density and operates in less abrasive environments, G-200 offers a balanced performance at a lower cost.
4. Conclusion
In the G-300 vs G-200 comparison, there is no one-size-fits-all answer. The best choice depends on your system’s operational parameters, brine composition, and performance goals. Contact us today for sample testing and let our technical team help you make the optimal selection.
Engineering Considerations for G-300 DLE Testing
G-300 performance should be evaluated together with the overall DLE process design, not only by single-point adsorption capacity. In real brine projects, the final result may be affected by brine chemistry, pretreatment, activation quality, pH control, flow rate, contact time and desorption conditions.
Before column testing or pilot-scale evaluation, users should first confirm the lithium concentration, major cations, anions, pH, temperature, suspended solids, oil, organic matter and scaling risks in the brine. These factors can directly affect adsorption stability, pressure drop, fouling risk and long-term cycle performance.
For column-based DLE systems, the testing conditions should be designed as close as possible to the intended process. Important factors include bed volume, flow rate, contact time, adsorption endpoint, washing volume, desorption pH, acid distribution and eluate collection method. If these conditions are not controlled properly, the test result may not reflect the actual performance of the adsorbent.
G-300 is designed for industrial lithium extraction evaluation, especially where mechanical strength, particle stability and hydraulic behavior are important. For moving-bed, simulated moving-bed or multi-column systems, users should pay special attention to particle integrity, pressure drop, fines generation, cycle stability and long-term attrition behavior.
G-300 is a spherical titanium-based lithium adsorbent designed for Direct Lithium Extraction from lithium-containing brines. It is used to selectively adsorb lithium ions from brine through a lithium/proton ion exchange mechanism.
G-300 is often used in ion exchange-based DLE systems, but it is not a conventional organic ion exchange resin. It is an inorganic titanium-based lithium adsorbent derived from lithium titanate chemistry.
G-300 can be evaluated for salt-lake brines, geothermal brines, oilfield produced water and lithium-containing industrial solutions. Suitability depends on brine chemistry, lithium concentration, impurities, pH and pretreatment conditions.
The typical applicable brine pH range for G-300 is 5–12. However, pH should be monitored during adsorption because hydrogen ions may be released during the lithium ion exchange process.
The typical operational adsorption capacity of G-300 is ≥6.0 mg Li/g, and the saturation adsorption capacity is ≥14.0 mg Li/g. Actual performance depends on brine composition, test method and process conditions.
G-300 should be activated through an acid-based lithium/proton exchange process before adsorption testing. The recommended desorption pH is usually controlled around 1.5–1.8, and the process often requires more than 36 hours.
G-300 can be evaluated for moving-bed and simulated moving-bed DLE systems. Its spherical structure and improved mechanical strength make it more suitable for demanding hydraulic and mechanical conditions compared with earlier product forms.
G-200 is an extruded titanium-based lithium adsorbent, while G-300 is a spherical adsorbent with improved mechanical strength and better industrial adaptability. G-300 is more suitable for pilot testing, moving-bed evaluation and scale-up studies.
In most cases, pretreatment is recommended. Oil, suspended solids, organic matter, calcium, magnesium, silica or scaling components may affect adsorption stability, column operation or long-term cycle performance.
Yes. During desorption, adsorbed lithium can be released into an acidic solution to produce lithium-rich eluate. The typical lithium concentration in the desorption solution can reach 3–5 g/L, depending on brine composition and operating conditions.
- Titanium-based lithium adsorbent for complex brine evaluation
- Suitable for cyclic adsorption and fixed-bed testing
- Applicable to oilfield brine, geothermal brine and high-salinity lithium-bearing solutions
- Brine-specific validation required for Ca/Mg/Sr/Ba, Fe/Mn, oil, organics and suspended solids
- pH-controlled adsorption recommended for low-buffer or acidic brines
- Can support DLE developers, engineering companies and resource owners in sorbent screening and process validation
G-300 may be evaluated for high-lithium solutions, but the process objective should be clearly defined. If the goal is only further concentration, titanium-based adsorbents may not always be the most suitable option. If the goal is lithium separation or purification, a detailed impurity analysis is needed.
Before testing, it is recommended to provide lithium concentration, major cations, anions, pH, temperature, suspended solids, oil or organic content, target lithium recovery, intended process type and testing scale. This information helps determine whether G-300 is suitable for the project.
Fixed-bed columns、multi-column systems、moving-bed、simulated moving-bed、continuous adsorption-desorption loops.
Before designing a DLE test with G-300, it is recommended to provide a complete brine analysis, including lithium concentration, sodium, potassium, magnesium, calcium, boron, sulfate, chloride, carbonate, bicarbonate, silica, pH and temperature.
For oilfield produced water or geothermal brines, additional information such as oil content, organic matter, suspended solids, turbidity and scaling tendency should also be evaluated. These components may affect pretreatment requirements, adsorption stability and column operation.
It is also helpful to confirm the intended process type, such as fixed-bed column, multi-column system, moving-bed system or simulated moving-bed system. Target recovery, flow rate, cycle time, testing scale and final lithium product route should be considered before setting up the adsorption and desorption test.
Pretreatment should be considered based on the specific brine composition. In many DLE projects, oil, suspended solids, organic matter, calcium, magnesium, silica, carbonate and sulfate can affect the stability of adsorption testing or long-term operation.
For oilfield brines, oil and organic matter should be evaluated carefully because they may cause surface contamination, fouling or unstable column performance. For geothermal brines, scaling components such as silica, calcium and magnesium may require pretreatment before adsorption. For salt-lake brines, the pretreatment design should depend on the magnesium/lithium ratio, calcium content, sulfate, carbonate and other impurity levels.
G-300 should be tested with a brine condition that is close to the intended operating process. If the brine contains high levels of suspended solids, oil or scaling components, pretreatment is usually recommended before column testing or pilot-scale evaluation.
Before pilot-scale DLE testing, G-300 should be evaluated through a structured testing process. A typical evaluation may include brine analysis, small-scale adsorption screening, activation verification, column breakthrough testing, desorption testing, eluate analysis and multi-cycle stability testing.
Batch adsorption tests can provide early information about lithium uptake under specific brine conditions. However, column testing is usually more important for process design because it can show breakthrough behavior, pressure drop, flow distribution, desorption efficiency and cycle stability.
For pilot preparation, users should also evaluate pH change during adsorption, lithium concentration in raffinate, lithium concentration in eluate, acid consumption, washing efficiency, particle condition and possible fouling or precipitation. The goal is not only to confirm whether G-300 can adsorb lithium, but also to understand whether the material can operate stably under the intended DLE process conditions.