Laboratory Mixer settler with gas collection hood

Brief Introduction Of Laboratory Mixer settler with gas collection hood

Mixer settler is widely used in the separation and purification of metals in hydrometallurgical solvent extraction processes. It consists of a mixing chamber that continuously feeds and stirs, and a clarification chamber that relies on gravity to separate liquid phases.

During solvent extraction (liquid-liquid extraction) processes, volatile organic compounds (VOCs), acid mist, and process gases may be released from the mixing chamber.

The gas collection hood captures these emissions and directs them to a ventilation or treatment system, helping create a safer working environment for operators.

Working Principle Of Mixer settler
 
1. Mixed mass transfer process
The extraction agent and material liquid enter the submersible chamber or manifold from the bottom of the extraction tank in a certain proportion, and are sucked into the mixing chamber by the wheeled stirring paddle and sheared, mixed and dispersed. At this time, the two-phase liquid is fully mixed, so that the solute is transferred from one phase to the other. The liquid is transferred to another phase of liquid, thereby completing the mixed mass transfer process.

2. Two-phase Separation process
The mixed liquid overflows from the mixing chamber to the clarification chamber. Due to the different densities of the two phases, the separation of the two phases is completed under the action of gravity. The separated two-phase liquid flows out through the light and heavy phase weirs respectively or enters the next stage.

Mixer Settler Features & Advantages

• Simple structure: The mixer settler generally consists of a cell body, an interface adjustment tube, a motor reducer, a stirring shaft, a stirring paddle, a speed regulator, a movable platform, etc. The structure is relatively simple;
• Stable operation and strong adaptability: Because the mixer settler has a large volume and a large amount of liquid, it can adapt to a certain range of material and liquid fluctuations. After adjusting the balance, the operation is relatively stable and the adaptability is strong;
• Reliable scale-up: Single-stage extraction rate and other design parameters are still relatively reliable after scale up.

Common Laboratory Mixer settler Specifications

Model	Mixer volume (ml)	Settler volume (ml)	Mixing flux      (L/h)	Motor Power(W)	Diameter of Inlet/outlet (mm)	Single Dimension (L*W*H,mm)
MCG-300	300	900~1200	1~5	20	Ø10	325*80*100
MCG-500	500	1500~2000	3~10	20	Ø12	434*96*116
MCG-1000	1000	3000~4000	5~20	20	Ø12	580*116*149
MCG-2000	2000	6000~8000	10~40	60	Ø16	715*145*176
MCG-5000	5000	15000~20000	20~100	90	DN15	936*194*240
MCG-10000	10000	30000~40000	40~200	120	DN20	1380*250*300

Note:
1. The table shows the commonly used specifications for experimental model, we offer customized according to customer requirements. The industrial mixer settler can be designed and customized according to process requirements such as processing capacity and ratio;
2. Commonly used materials for lab mixer settler are PP, PMMA, transparent PVC, and PTFE,SS304,SS316L etc.



Mixer settler Applications 

✔ Copper SX-EW Plants
✔ Lithium Battery Recycling
✔ Rare Earth Separation
✔ Nickel & Cobalt Recovery
✔ Hydrometallurgical Processing
✔ Chemical Solvent Extraction
✔ Pilot Plant Testing
✔ University & Research Laboratories
✔ Metal Recovery and Recycling

Why Choose a Mixer Settler with Gas Collection Hood?

1. Improve Workplace Safety
During solvent extraction, agitation may generate solvent vapors, acid mist, or process fumes. The integrated gas collection hood captures emissions directly at the source, helping create a safer working environment for operators.

2. Reduce Solvent Evaporation Losses
Organic extractants are often expensive. A gas collection hood helps minimize solvent evaporation during mixing, reducing reagent consumption and lowering operating costs.

3. Control Acid Mist and Corrosive Fumes
In copper SX, rare earth extraction, lithium battery recycling, and other hydrometallurgical processes, acidic solutions can generate corrosive vapors. The gas collection hood helps prevent these emissions from spreading into the workshop.

4. Support Environmental Compliance
Many industrial facilities must meet strict environmental and occupational health regulations. Integrated fume collection makes it easier to connect the mixer settler to scrubbers, exhaust systems, or centralized waste-gas treatment units.

5. Protect Equipment and Facilities
Capturing vapors at the source helps reduce corrosion on nearby equipment, electrical components, and building structures, contributing to lower maintenance costs and longer service life.

6. Ideal for Sensitive Extraction Applications
Especially suitable for:

• Copper solvent extraction (SX-EW)
• Lithium battery recycling
• Rare earth separation
• Nickel and cobalt recovery
• Chemical extraction processes
• Pilot-scale hydrometallurgical plants

For more information about our mixer settler systems, please contact us for technical support and quotation.