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L-01-12-M03 |
Pilot-scale PPH Mixer Settler for Hydrometallurgy Solvent Extraction Tests |
The Pilot-scale PPH Mixer Settler is a stage-wise continuous liquid-liquid extraction equipment designed for mid-tier hydrometallurgical separation and purification tests. Structurally composed of a mixing chamber, clarification settling zone, phase separation zone, and complete stirring drive system, this equipment realizes continuous feeding, intensive mixing mass transfer, and gravity-driven two-phase separation.
Based on a multi-stage series working principle consistent with industrial extraction processes, the unit supports flexible configuration of extraction, scrubbing, and stripping sections according to technical requirements. With adjustable stirring intensity, stable settling performance and reliable scale-up capability, it serves as professional equipment for solvent extraction workflow verification and hydrometallurgical process evaluation.
The Pilot-scale PPH Mixer Settler is widely applied in professional laboratory and pilot-scale workflows, including mineral sample preparation, metallurgical testing, mineral analysis and hydrometallurgical process research for mining enterprises, metallurgical research institutes and chemical laboratories.
The equipment performs continuous solvent extraction and impurity removal of metal-containing feed liquids. Stable liquid-liquid mixing and phase separation generate purified experimental samples with consistent solute characteristics, supporting subsequent mineral component detection and grade analysis.
The mixer settler supports process condition exploration for copper, nickel-cobalt, rare earth and precious metal extraction. Operators can adjust stirring parameters and stage combinations to evaluate mass transfer performance and separation effects, providing reliable experimental data for metallurgical process development.
Designed according to industrial multi-stage continuous extraction principles, this equipment simulates solvent extraction workflows from laboratory evaluation to pilot verification. It is suitable for liquid purification, metal separation research and hydrometallurgical process scale-up studies.
High extraction performance: The optimized mixing and settling structure provides sufficient contact between immiscible liquid phases, supporting effective solute mass transfer and target metal separation.
Modular structural design: The integrated configuration of tank body, interface adjusting tube, speed-controlled stirring system and movable platform simplifies operation, cleaning and maintenance.
Stable continuous operation: Large effective liquid storage capacity helps absorb minor feed fluctuations and maintains balanced extraction conditions during continuous testing.
Reliable scale-up capability: Laboratory and pilot test parameters can be referenced for industrial process design, reducing uncertainty during production expansion.
Corrosion-resistant material options: PP, PVC, PMMA and PTFE configurations are available to adapt to different acidic, alkaline and corrosive extraction media.
Flexible test configurations: Multiple chamber volumes and power options support different laboratory evaluation requirements and pilot-scale verification projects.
| Parameter Item | Mixing Chamber Volume | Motor Power | Optional Materials |
|---|---|---|---|
| Mixer Settler | 0.125 L | 30 W | PP, PVC, PMMA, PTFE |
| Mixer Settler | 0.3 L | 60 W | PP, PVC, PMMA, PTFE |
| Mixer Settler | 0.4 L | 60 W | PP, PVC, PMMA, PTFE |
| Mixer Settler | 0.5 L | 60 W | PP, PVC, PMMA, PTFE |
| Mixer Settler | 1 L | 60 W | PP, PVC, PMMA, PTFE |
| Mixer Settler | 2 L | 120 W | PP, PVC, PMMA, PTFE |
Standard laboratory and pilot specifications cover multiple mixing chamber volumes with matched motor configurations. Users can select corrosion-resistant materials according to extraction medium characteristics.
Customized mixer settler structures and industrial-scale configurations can also be designed according to processing capacity, phase ratio and technological requirements, supporting transition from laboratory testing to pilot validation and industrial process development.
Reliable testing accuracy: FKN PANDA Pilot-scale PPH Mixer Settler combines controlled stirring intensity with gravity-based settling separation to maintain stable mass transfer conditions. Consistent phase separation performance supports repeatable experimental data for hydrometallurgical analysis and process verification.
Operational reliability: The robust structural design and stable stirring drive system support continuous cyclic operation. Corrosion-resistant material selections improve equipment durability when working with different extraction media.
Improved laboratory efficiency: Continuous extraction operation reduces dependence on intermittent batch testing. Modular maintenance design simplifies cleaning and parameter adjustment, helping laboratories improve workflow efficiency.
Mining workflow compatibility: The equipment follows industrial solvent extraction principles and integrates into mineral liquid purification, metal separation testing and hydrometallurgical scale-up evaluation workflows.
Total cost effectiveness: Standardized models, customizable configurations and reliable scale-up performance help reduce unnecessary equipment investment, maintenance requirements and process verification costs.
Q1. How to select a pilot-scale PPH solvent extraction tank for hydrometallurgy?
Selecting a pilot-scale PPH solvent extraction tank requires evaluation of process chemistry, operating conditions, required capacity, phase characteristics, and pilot testing objectives. The tank configuration should match the planned hydrometallurgical workflow, including mixing, phase dispersion, settling, and sampling requirements. Factors such as chemical compatibility, mechanical strength, internal structure, and integration with pumps and instrumentation should be considered during equipment selection. For new pilot facilities, expansion projects, or process verification studies, the PPH tank should support reliable operation while providing representative data for scale-up decisions.
Q2. Which process chemistries are compatible with PPH construction in pilot SX circuits?
PPH (polypropylene homopolymer) is commonly considered for solvent extraction applications where corrosion resistance and chemical compatibility are important selection factors. Its suitability depends on the specific organic and aqueous phases, reagent composition, temperature, and operating conditions of the SX process. Before selecting a PPH tank, laboratories and pilot plants should evaluate chemical exposure, mechanical requirements, and long-term service conditions. This assessment helps ensure the tank material is appropriate for applications such as copper, nickel, cobalt, lithium, or other hydrometallurgical extraction studies.
Q3. What factors should be considered when specifying tank geometry and internals for PPH solvent extraction tanks?
Tank geometry, aspect ratio, mixing zone design, settling area, and internal components directly influence phase dispersion and separation performance in solvent extraction testing. During specification, engineers should consider flow patterns, residence time requirements, organic and aqueous phase characteristics, and the intended pilot circuit configuration. Proper design supports representative hydrometallurgical testing by improving mixing consistency and reducing issues such as phase carryover or unstable separation. The selected configuration should align with the objectives of laboratory-to-pilot scale-up studies and process optimization programs.
Q4. How does PPH material performance support pilot solvent extraction applications?
PPH construction is often selected for pilot solvent extraction equipment where resistance to certain chemical environments is required. Compared with metallic materials, polymer-based construction can provide different corrosion resistance characteristics depending on the process conditions. Material selection should consider reagent chemistry, temperature range, mechanical loading, and expected operating duration. For mining laboratories and metallurgical research centers, evaluating construction materials during equipment selection helps reduce operational risks and supports stable testing during continuous pilot campaigns.
Q5. How to integrate a pilot-scale PPH solvent extraction tank into a continuous SX pilot plant circuit?
Integration of a PPH solvent extraction tank into a continuous SX pilot circuit requires coordination with upstream feed preparation, pumping systems, downstream separation stages, and process monitoring equipment. The tank arrangement should support controlled phase contact, settling, sampling, and operational adjustments during testing. In a complete hydrometallurgical workflow, pilot SX equipment provides valuable information for evaluating extraction behavior and process conditions before further scale-up. Proper integration also supports repeatable operation during extended pilot campaigns and process development studies.
Q6. Which parameters most influence scale-up reliability from laboratory to pilot PPH SX systems?
Scale-up reliability depends on maintaining comparable process conditions between laboratory testing and pilot operation. Important parameters include phase ratio, mixing intensity, residence time, flow distribution, separation behavior, and chemical operating conditions. A well-selected pilot-scale PPH solvent extraction tank should help researchers translate laboratory findings into larger process evaluations. Consistent monitoring and documentation of operating parameters allow metallurgical engineers to compare results and make informed decisions during process development, optimization, and industrial application planning.
Q7. How to optimize mixing and settling performance in pilot PPH solvent extraction tanks?
Optimizing mixing and settling performance requires balancing sufficient phase contact with effective separation after dispersion. Mixing conditions, impeller configuration, residence time, and tank geometry should be evaluated according to the specific solvent extraction system. Excessive agitation may increase emulsion formation, while insufficient mixing can reduce mass transfer efficiency. Pilot testing allows engineers to study these relationships under controlled conditions and adjust operating parameters to achieve reliable phase separation and representative metallurgical data.
Q8. What maintenance requirements are critical for PPH pilot solvent extraction tanks?
Maintenance of pilot PPH solvent extraction tanks focuses on regular inspection of tank structure, connections, mixing components, seals, and supporting equipment. Operators should monitor for chemical degradation, mechanical wear, leakage risks, and changes in process performance. Cleaning procedures should be compatible with the tank material and the chemicals used in the SX circuit. A planned maintenance approach helps maintain stable operation during continuous pilot testing and supports reliable data collection throughout hydrometallurgical research programs.
Q9. Can pilot-scale PPH solvent extraction tanks be used for different mineral processing applications?
Pilot-scale PPH solvent extraction tanks can be applied in various hydrometallurgical research programs when the construction material and process configuration are suitable for the target chemistry. Applications may include evaluation of metal extraction and separation processes involving copper, nickel, cobalt, lithium, rare earth elements, and other resources. The suitability of the equipment depends on factors such as reagent system, phase behavior, temperature, and pilot objectives. Proper process evaluation ensures the equipment supports meaningful metallurgical testing and scale-up studies.
Q10. How to validate pilot-scale PPH solvent extraction tank results for industrial application?
Validation of pilot-scale PPH solvent extraction results requires comparison of pilot data with laboratory findings and, where available, industrial operating conditions. Engineers typically evaluate extraction behavior, phase separation performance, operating stability, and material compatibility. Accurate documentation of process parameters and test conditions improves the reliability of scale-up analysis. Pilot equipment serves as an important bridge between laboratory investigation and industrial process decisions by providing practical operating information for further engineering evaluation.
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