The pilot extraction tank (extractor box, extractor, and mixing clarifier) is a stepwise contact extraction equipment, consisting of a mixing system, mixing area, clarification area, and phase separation area. In each stage, the two immiscible liquid phases will undergo mixing, clarification, and phase separation processes, thereby achieving mass transfer and separation of the target solute between different liquid phases.
Work Process
The specific operating process of the extraction tank (mixed clarification tank) involves the liquid feed and extracting agent being pumped into the mixing chamber through separate feed ports by a feed pump. A high-speed agitator then mixes the feed and extracting agent for mass transfer. Subsequently, the mixture passes through overflow baffles into the clarification chamber, where the two phases—light and heavy—separate under the force of gravity. The separated phases then enter different outlets, completing the extraction process. In actual production, the extraction tank is typically a multi-stage series configuration, including stages for extraction, reverse extraction, washing, and regeneration, among others, which are configured according to the specific production process.
To meet customer needs, Zhenfen Distillation offers extraction equipment consulting and services: from initial communication on process goals or operational conditions, planning, design, customized production, and manufacturing, we assist in building the ideal extraction equipment, ensuring greater peace of mind and convenience for you. Welcome to inquire!
Hotline for Inquiry: 15380766707!
Mixed mass transfer process
Raw Material IntroductionThe raw liquid to be extracted and the extracting agent are introduced into the mixing chamber of the extraction tank through their respective feed ports. For example, in hydrometallurgy, a water solution containing metal ions serves as the raw liquid, while an organic extracting agent is introduced into the mixing chamber as another liquid phase.
Agitate and mixThe mixing chamber is equipped with a stirrer that rotates at high speed, ensuring thorough contact and mixing between the raw material liquid and the extractant. Under the action of stirring, the solute is transferred from the raw material liquid to the extractant, forming a two-phase solution. The intensity and duration of stirring have a significant impact on the mass transfer efficiency. Insufficient stirring can lead to inadequate contact between the two phases, reducing the mass transfer efficiency; excessive stirring, however, may cause emulsification, increasing the difficulty of subsequent separation.
Separation process
Overflow enters the clarification chamberThe mixed liquid enters the clarification chamber through overflow baffles. The clarification chamber is an empty room with a large cavity volume, providing ample space for the liquid to settle and separate.
Gravity Natural SeparationIn the clarification chamber, due to the differing densities of the raw liquid and the extracting agent, under the influence of gravity, the two phases gradually separate. The denser phase (usually the heavy phase) sinks to the bottom, while the less dense phase (usually the light phase) floats on top, forming a clear phase interface.
Partial contact reduces mass transfer efficiency; excessive stirring can lead to emulsification, increasing the difficulty of subsequent separation.
Key Features
● High efficiency grade
●Simple Structure: The extraction tank typically consists of a tank body, interface regulating tube, motor reducer, stirring shaft, impeller, speed controller, and a movable platform, etc., with a relatively simple structure.
●Stable Operation, High Adaptability: Due to the larger volume of the extraction tank and the greater amount of stored liquid, it can accommodate a certain range of fluctuations in the material liquid. After balancing, the operation is relatively stable and highly adaptable.
● Scalable Reliability: Single-stage extraction rates and other design parameters remain relatively reliable after scaling up.
Application Fields
● Copper Extraction
Rare Earth Extraction and Separation
Nickel Cobalt Extraction
Rare metal extraction
Nuclear industry
Technical Specifications
Larger sizes available, custom-made according to customer's process requirements. Welcome to inquire.15380766707 ！
Complete extraction tank equipment and engineering projects application
● Process Design: Design a reasonable extraction process according to customer requirements.
● Equipment Selection: Choose the appropriate extraction tank model and configuration for different product series.
● Engineering Design: Includes equipment layout, pipeline design, instrument control, PLC integration, etc.
● Equipment Manufacturing: Offer customized non-standard production and processing of extraction tanks based on requirements.
Installation and Commissioning: Perform equipment installation, debugging, and linkage trial operation on-site.
● Staff Training: Conduct systematic training for customers' operators.
● After-sales Service Offers comprehensive after-sales support to ensure long-term stable operation of the equipment.
Kit for trial extraction tank for container
