Laboratory mixer settler, liquid liquid extraction

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.
In practice, multi-stage series connection is often used to achieve deep separation of targets. Under certain process conditions, the mass transfer efficiency of the mixing chamber is related to the mixing intensity of the stirring paddle and the contact time of the two phases, while the clarification effect is related to the viscosity, density, surface tension, droplet diameter, clarification area, etc. of the two-phase liquid. Clarification about time. Work process
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.
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. Features

1. 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;
2. 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;
3. Reliable scale-up: Single-stage extraction rate and other design parameters are still relatively reliable after scale up.

Common application field:

1. Copper extraction
2. Rare earth extraction and separation
3. Nickel cobalt extraction
4. Extraction of rare and precious metals
5. Nuclear Industry

Technical Parameters

Model	Mixer volume（ml）	Settler volume (ml)	Flux（L/h）	Motor power (W)	Pipe diameter of inlet and outlet	Single dimension  L*W*H (mm)
MS-300	300	900~1200	1~5	20	Ø10	335×92×100
MS-500	500	1500~2000	3~10	20	Ø12	434×96×116
MS-1000	1000	3000~4000	5~20	20	Ø12	580×116×149
MS-2000	2000	6000~8000	10~40	60	Ø16	715×145×176
MS-5000	5000	15000~20000	20~100	90	DN15	936×194×240
MS-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.