Liquid Liquid Extraction System

Brief Introduction Of Liquid Liquid  Extraction System

The centrifugal extractor is a new, fast and efficient liquid-liquid extraction and separation system. It has higher separation efficiency than traditional extraction equipment such as mixer settler and extraction towers, and is more conducive to continuous production.
The centrifugal extractor uses a motor to drive the drum to rotate at high speed. The two liquids to be mixed and separated complete the mixing and mass transfer under the action of the shear force generated by the stirring paddle, and then are quickly separated under the action of the centrifugal force generated by the high-speed rotation of the drum.
The centrifugal extraction machine can be used as a single unit or can be connected in multiple stages to achieve counter-current extraction. It has high mass transfer efficiency, short two-phase residence time, low retention volume, and is easy to operate. The rotation speed, flow ratio and mixing intensity can be changed as needed. Work process of Liquid liquid extraction system

Mixed mass transfer process
The light and heavy phase solutions enter the mixing chamber from the light phase inlet and heavy phase inlet in a certain proportion, and the mixing and mass transfer process is quickly completed under the action of the stirring paddle.
Two-phase separation process
The mixed liquid enters the drum under the action of the static turbine. In the cavity area formed by the web, the mixed liquid quickly rotates synchronously with the drum. Under the action of centrifugal force, the heavy phase liquid with high density gradually moves away during the upward flow process. The center of the drum moves toward the drum wall; the light phase liquid with low density gradually moves away from the drum wall and toward the center. The clarified two-phase liquid finally enters the collection chamber through each channel and flows out along the tangent square, completing the two-phase separation. process.

Features Of Liquid liquid extraction system

1. Simple and stable structure: top-suspended structure, no bottom bearings, and no risk of leakage;
2. High extraction efficiency: the independent mixing chamber and stirring paddle can be replaced according to the requirements of the mixing system;
3. Energy saving: non-annular mixing structure, the drum itself does not participate in mixing, low energy consumption and can effectively avoid the emulsification phenomenon caused by over-mixing;
4. Corrosion resistance: The material can be made of stainless steel metal materials or non-metallic composite materials;
5. Good sealing performance: multi-channel shaft seal design, optional magnetic transmission structure.

Application Field Of Liquid liquid extraction system

1. Wastewater treatment (such as phenolic wastewater treatment, waste acid water treatment);
2. Pharmaceutical industry (such as preparation of pharmaceutical intermediates, Chinese medicine purification);
3. Hydrometallurgy industry (such as copper, vanadium, nickel, rare earth elements and so many elements’ extraction and separation);
4. Food industry (such as edible oil, food pigment, additive, lactic acid, citric acid and other extraction or separation);
5. Fine chemicals (such as spice extraction, raw material of cosmetics extraction, vanillin extraction);
6. Oil-water separation (such as remove water from crude oil/heavy oil/diesel and so on);

 
Technical Parameters Of Liquid liquid extraction system
 

Model	Drum Diameter  (mm)	Flux（L/h）	Rotary speed（rpm）	Motor power (KW)	Pipe diameter of inlet and outlet (mm)	Dimension L*W*H (mm)
LC-20	20	1~10	5000~8000	0.09	Ø10	220×220×600
LC-25	25	1~10	5000~8000	0.09	Ø10	220×220×600
LC-36	36	1~50	2500~3500	0.18	DN15	400×350×800
LC-50	50	1~50	2072~2840	0.25	DN20	350×300×850
LC-60	60	1~70	2072~2840	0.25	DN20	385×300×850
LC-80	80	1~80	2072~2840	0.37	DN20	500×350×1250
LC-100	100	1~100	2072~2840	0.75	DN25	600×600×1350
LC-150	150	50~800	1400~2800	1.5	DN40	600×600×1350
LC-250	250	100~3000	1000~1450	2.2	DN50	750×750×1450
LC-350	350	500~8000	1000~1450	3.0	DN80	950×950×1650
LC-450	450	1000~15000	600~1200	4.0	DN100	1100×1100×1750
LC- 550	550	3000~30000	500~1000	4.0	DN100	1200×1200×1800
LC -650	650	5000~60000	400~960	5.5	DN150	1400×1400×2200

Remarks：
1. Equipment materials need to be selected based on the physical and chemical properties of the materials being processed. Commonly used materials include polymer composite fluorine materials, SS304, SS316L, ordinary composite materials, fluorine materials, etc.
2. The mixing flux in the technical parameter table of each model mentioned above is the maximum theoretical flux of the equipment. The actual processing capacity of the equipment depends on the system of the material liquid (such as density, viscosity, emulsification degree, etc.), mass transfer efficiency, and separation effect. etc. are closely related.


Purchasing Recommendations
In today's highly competitive chemical, pharmaceutical, and biotechnology industries, efficient and reliable separation equipment is crucial for maintaining a competitive edge. Liquid-liquid centrifugal extractors, as core equipment in modern separation processes, directly impact product quality, operating costs, and process sustainability. As an international buyer, how can you make informed decisions when faced with numerous suppliers and technical parameters?

I. Clarify Your Process Requirements: The First Step in Selection
Before choosing equipment, please answer these key questions:

• Processing capacity requirements: What is your daily processing volume? Do you have future expansion plans?
• Material characteristics: What are the two-phase density difference, viscosity, interfacial tension, and emulsification tendency?
• Separation objectives: What purity level needs to be achieved? What are the extraction efficiency requirements?
• Process conditions: What are the operating temperature, pressure, pH range, and corrosiveness?
• Compliance requirements: Which international standards (ATEX, FDA, cGMP, etc.) need to be met?
• Space limitations: What are the limitations of the installation site? II. Core Technology Assessment

II.  Core Technology Assessment

1.Separation Efficiency and Processing Capacity
Review the equipment's theoretical stages and actual efficiency data
Compare separation factors at different rotational speeds
Evaluate the equipment's actual performance data in your specific material system
Ensure the processing capacity range matches your needs and includes an appropriate margin

2. Material Compatibility and Corrosion Resistance
Select appropriate materials based on your process media (Hastelloy, titanium, special stainless steel, etc.)
Obtain material corrosion test reports, especially data for specific chemicals in your process
Check the chemical compatibility of sealing materials

3. Ease of Operation and Automation Level
Evaluate the ease of starting, running, and cleaning the equipment
Check control system integration capabilities (PLC/SCADA compatibility)
Focus on remote monitoring and fault diagnosis functions
Consider the potential for automation integration with your existing production line

4. Energy Efficiency and Operating Costs
Compare power consumption of similar equipment
Evaluate maintenance frequency and consumable replacement costs
Calculate total cost of ownership (TCO), not just the purchase price
Consider energy-saving designs, such as high-efficiency motors and optimized fluid dynamics structures

5. Safety Features and Compliance Certifications
Verify explosion-proof certifications (ATEX, IECEx, and other applicable regional certifications)
Check safety interlocks and overload protection systems
Confirm compliance with machinery safety directives (e.g., EU CE certification)
Evaluate the enclosed design to prevent VOC emissions and operator exposure risks

6. Supplier Technical Support and Global Service Network
Assess the supplier's service capabilities in your region
Understand the efficiency of global logistics for spare parts supply
Evaluate the level of installation guidance, operator training, and maintenance support
Check the supplier's industry experience and success stories, especially in your specific application area

7. Flexibility and Scalability
Can the equipment adapt to future process changes?
Does the modular design facilitate capacity expansion?
Is it easy to clean and validate, meeting the needs of multi-product production?

III. Special Considerations for International Procurement

1. Cross-border Logistics and Installation Support
2. Choose a supplier with extensive international shipping experience; they should be able to:
3. Handle all export documents and customs clearance
4. Provide professional equipment packaging to ensure safe long-distance transportation
5. Arrange experienced engineers for on-site installation and commissioning
6. Provide multilingual operation manuals and technical support
7. Standardization and Certification Consistency
8. Ensure the equipment complies with your country's electrical standards, safety regulations, and industry-specific requirements. International certifications (such as CE, ASME, and PED) are fundamental guarantees of equipment quality.

Choosing a liquid-liquid extraction system/ centrifugal extractor is a strategic decision that will impact your production efficiency and product quality for many years to come. In the context of global procurement, an excellent supplier is not only an equipment provider but also a partner in your process optimization and continuous improvement.

We invite you to contact us to receive a customized solution tailored to your specific process. Our engineering team will provide you with detailed performance data, pilot testing opportunities, and a comprehensive life cycle cost analysis to help you make data-driven, informed decisions.