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Solvent Extraction Mixer Settler
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area: Beijing
Expiry date : Long Effective
last update: 2023-07-08 14:41
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Your Professional Mixer Settler Extractor Manufacturer in China!


 




Xian Plansee Chemical Industry Science&Technology Co., Ltd. is a scientific and technological enterprise that researches and develops, produces and sells special complete sets of equipment, as well as the development of extraction and separation technology and the promotion of industrial application.








 












Rich Industrial Experience




We have rich industrial experience in the clean and efficient treatment of electroplating sludge, copper-containing waste, nickel-based cobalt-based alloy waste, and various precious metal waste.



 










Professional Technical Team




We have an excellent multi-disciplinary technology and management talent team, the core members are mainly from famous universities. They have long been engaged in the research and industrial application of wet separation and purification of rare and precious metals.










Super R&D Capabilities




We have been developed special extraction process different from traditional P204/P507, which is suitable for complex multi-salt systems and has higher selectivity for nickel and cobalt.



 



 










Excellent After Sales Service




Our technical experts are always willing to assist customers over phone, fax or e-mail or live chat on specific problems related to machine operation and maintenance. We also have a qualified team of engineers to assist customers in their process related problems.











 








What is Solvent Extraction Mixer Settler?


Solvent extraction mixer-settlers are pieces of equipment that separate solutes or metals from solutions. They are used in the solvent extraction process, also known as liquid-liquid extraction (LLE).

Liquid-liquid extraction is a technically advanced, niche separation technology. It is applied when simpler alternatives such as distillation are not able to meet your requirements. Components are extracted from your feed with the help of a solvent, without an energy demanding evaporation step.











 







 



Our Related Products










The design of the mixer settler liquid liquid extraction provided by our company is based on the traditional box type extraction tank widely used in the hydrometallurgy field, combined with the actual situation of customers, and has formed its own unique structure.











The mixer settler extractor is produced by body bonding, welding, integrated molding and other processes, with stable quality, and can be widely used in petroleum, chemical, lithium electricity, rare earth and other fields.











Mixer settler equipment has the characteristics of adjustable extraction stages, adjustable stirring speed, adjustable phase interface, etc. It can meet various extraction experiments of various systems and comparisons（O/A）, and is convenient for observation and sampling. It can completely replace the separation funnel for continuous and efficient countercurrent extraction experiments.











The purpose of the small-scale and pilot-scale extraction tests in the laboratory is not only to solve a scientific problem, but also to move towards industrialization and produce actual social and economic benefits.











The Titanium Mixer Settler is designed to efficiently separate different components of a mixture, such as liquids or gases, through a combination of mixing and settling processes.











Our PVDF Mixer Settler is a unique and innovative piece of equipment that combines advanced features of mixing and settling to offer a state-of-the-art solution for separation processes.










 








 



Equipment Design


The design of the solvent extraction mixer settler provided by our company is based on the traditional box type extraction tank widely used in the hydrometallurgy field, combined with the actual situation of customers, and has formed its own unique structure. The extraction tank body mainly consists of mixing chamber and settling chamber. The mixing chamber is composed of the bottom submersible chamber and the upper mixing chamber, anti-vortex baffle and other structures,and the settling chamber is composed of emulsion overflow baffle,coalescence plates,light phase weir,adjustable heavy phase weir（interface regulator）,cover plate and other structures.










 







Overview of the Solvent Extraction Mixer Settler


 




The system consists of the following adjustable overflow valve, Mixing Zone-stirrer drive assembly and settling zone.



Mixing Zone-Stirrer Drive Assembly



The mixing chamber consists of a cylindrical glass cover in which a variable speed stirrer drive is fitted. Glass impeller Stirrer creates a negative pressure at the inlet, which can be used to draw liquid from a previous stage in the process. In the mixing zone a turbine stirrer with variable speed unit mixes the two phases and the mass transfer takes place during dispersion.



 



Separation Zone or Settling Zone



Separation of phases takes place in two phases. The turbulent flow in the mixing zone must be brought under control and converted in to axial flow. Then the mixer passes into the separation zone where the two phases separate, due to their specific gravity difference. Depending on required time and liquid flow Settling Length can be increased or decreased. To standardize the equipment, we have kept Settling Zone of 1 meter length. In which Flow can be set to get desired Separation. We offer optionally also Static Mixer of PTFE or SS 304 to get more settling time between two weirs.



 



Auto Continuous Zone



The adjustable overflow valve assembly at one end of the vessel can be set for any interface height. The position of the overflow weir is adjusted to suit the relative densities of the two phases. This valve can be operated externally such that the interface height can be set or reset depending on the operating process conditions. The separating head incorporates an internal overflow weir, which is manually adjusted using a hand wheel.








 










 



The Advantages of Solvent Extraction Mixer Settler



Visual Monitoring



The transparency of Borosilicate glass facilitates the adjustment of the overflow valve by visual monitoring where by any change in the process conditions resulting into a change in layer (interface) height can be immediately adjusted by resetting the overflow valve.



The resetting of the separation height is very simply achieved by rotating the hand wheel of the overflow valve assembly in the clock or anti clock direction.



Large Interface Area



The horizontal glass vessel of the mixer-settler provides a large interface area of separation in two immiscible liquid phases for a given volume. This enhances the Extraction.



Heat Sensitive Products



Can be processed at ambient or moderate temperatures (example: vitamin production).



Separation of Small Contents



The high-boiling impurities mostly in aqueous solutions. In the normal thermal separation technique, the complete water content has to be withdrawn by a very energy-intensive evaporation process (example: elimination of phenol from aqueous waste).









 








 



Applications of Solvent Extraction Mixer Settler



Miniplants and Pilot Columns



In spite of considerable progress in the research and development of liquid-liquid extraction technology, designing an industrial-scale extractor based on theoretical and empirical methods is still challenging, and therefore a systematic test method is essential for a reliable scale-up.



Robust Design for Changing Hydrodynamic Conditions



In extraction with high mass transfer and/or changing physical properties, this is the column of choice. The geometry of the agitated compartments can be adapted for changing hydrodynamic conditions. Other main features are special mixing turbines and perforated partition plates.



If You Need Stage-Wise Contact but Have Space Constraints



Mixer-settlers operate with a purely stage-wise contact. After every mixer there is a settler. Mixer-settlers can be operated in a multistage, co- or countercurrent fashion. Our mixer-settler-column allows you to take advantage of this stage-wise contact while keeping the small footprint of a column.











 






 


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Equipment processing platform






R & D platform







 






 


Ultimate FAQ Guide to Solvent Extraction Mixer Settler








Q: How does the liquid-liquid extraction work?




A: Liquid-Liquid extraction is a method by which a compound is pulled from solvent A to solvent B where solvents A and B are not miscible. The most common method of liquid-liquid extraction is performed using a separatory funnel.





Q: How efficient is liquid-liquid extraction?




A: The fraction of solute in the organic phase is 1–0.400, or 0.600. Extraction efficiency is the percentage of solute that moves into the extracting phase; thus, the extraction efficiency is 60.0%.





Q: How can I speed up liquid-liquid extraction?




A: Adding high enough concentrations of simple salts to saturate the aqueous sample solution can increase the partition coefficient of hydrophilic analytes and improve recovery into organic extraction solvents.





Q: Why is distillation better than liquid-liquid extraction?




A: The biggest difference between these two processes is this: Solvent extraction: It purifies a substance whether it is in its liquid or solid phase. Solvent distillation: It purifies a substance only in its liquid phase.





Q: What is the difference between distillation and liquid-liquid extraction?




A: Unlike distillation, which is based on boiling point differences, extraction separates components based on their relative solubilities in two immiscible liquids. Extraction is typically chosen over distillation for separation applications that would not be cost-effective, or even possible, with distillation.





Q: Does temperature affect liquid-liquid extraction?




A: Generally, however, chemicals with a low boiling point are best extracted at 30 °C, or less while chemicals with a higher boiling point and larger volume require higher temperatures and extraction times.





Q: What factors affect liquid-liquid extraction?




A: Two of the key factors that determine the efficiency of a liquid–liquid extraction protocol were delineated and discussed, that is, the appropriate ligand to enhance the lipophilicity of AmL complexes and appropriate way to form ion pairs to minimize the attraction between the complexes and aqueous phase.





Q: When can liquid-liquid extraction not be used?




A: The more polar the organic solvent, the more it is miscible (soluble) with water. For example, polar solvents such as methanol, ethanol and acetone are miscible with water, thus not suitable for liquid-liquid extraction.





Q: Why is it necessary to vent during a liquid-liquid extraction?




A: Pressure builds up that pushes some of the gas and the liquid out. The container should be vented immediately before the pressure build-up can cause an explosion, an ejection of the stopper on the top or excessive spillage upon opening. A similar observation will be made if a low boiling solvent is used for extraction.





Q: Is liquid-liquid extraction the same as solvent extraction?




A: Liquid–liquid extraction (LLE), also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar).





Q: Which type of liquid-liquid extraction is efficient?




A: LLE is a routine method of choice to extract CWAs from aqueous samples. It is accurate and efficient, and plays an irreplaceable role in the determination of CWAs and related substances.





Q: Is solid phase extraction better than liquid-liquid extraction?




A: SPE is much easier than LLE as it is considerably easier to separate a liquid from a solid than two immiscible liquids. The adsorbent provides the surface area necessary to ensure a high extraction recovery and cleanup.





Q: How does pressure affect liquid-liquid extraction?




A: The extractants are maintained in a liquid state (subcritical) even at a temperature higher than boiling point if high pressure is applied. The elevated temperature can dramatically increase the solubility and diffusion of analytes resulting in less extraction time and lower solvent consumption.





Q: Under what conditions is liquid-liquid extraction preferred over distillation?




A: Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either:

The relative volatilities of the compounds to be separated are very similar;

One or more of the mixture components are temperature sensitive even near ambient conditions;

The distillation would require a very low pressure or a very high distillate/feed ratio.





Q: What is the most important criterion in order to perform a liquid-liquid extraction?




A: This criterion includes that the chosen solvent should be completely immiscible with the solution that needs to be extracted and that one or more of the solutes is miscible in this solvent.





Q: What causes emulsion in liquid-liquid extraction?




A: Emulsions in LLE can be caused by several factors, such as the nature of the solvents, the agitation method, the presence of surfactants, the temperature, and the pH. The solvents should have a large difference in polarity and density to prevent emulsification.





Q: What is the conclusion of liquid-liquid extraction?




A: The liquid-liquid extraction can be identified as an important technique towards the segmentation of unmixable liquids. This particular process has a diverse set of applications in the arena of scientific and commercial production.





Q: Why is it important to gently swirl the solution during liquid-liquid extraction?




A: The simplest way to prevent the formation of an emulsion is to gently swirl instead of shake the separatory funnel. By swirling the separatory funnel the agitation that can cause the emulsion to form is reduced, but the surface area of contact between the two phases is maintained to allow for extraction to occur.





Q: What are the phases involved in liquid-liquid extraction?




A: Liquid-liquid extraction (we will refer to it simply as extraction from now on) is typically conducted with one aqueous phase (either pure water, or an aqueous solution) and one organic phase.





Q: What are the rules for liquid-liquid extraction?




A: The basic procedure for performing a liquid-liquid extraction is to take two immiscible phases, one of which is usually water and the other of which is usually an organic solvent. The two phases are put into a device called a separatory funnel, and compounds in the system will distribute between the two phases.





Q: What are the two types of liquid extraction?




A: There are two types of extraction, liquid-liquid extraction also known as solvent extraction as well as solid-liquid extraction. Both extraction types are based on the same principle, the separation of compounds, based on their relative solubilities in two different immiscible liquids or solid matter compound.





Q: When choosing solvents for a liquid-liquid extraction What are two important characteristics?




A: The extraction solvent must be miscible with the component that must be extracted and there should be good solubility between the two while not effectively reacting with impurities.

The extraction solvent must be easily removed from the desired or target compound. Thus, it must bear a relatively good volatility.



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