Industrial extraction tanks (extraction boxes, extractors, and mixing clarification units) are a stepwise contact extraction equipment consisting of a stirring system, mixing zone, clarification zone, and phase separation zone. 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 working process of the extraction tank (mixed clarification tank) involves the feed liquid and extractant being pumped into the mixing chamber through their respective feed ports by a feed pump. A high-speed stirrer then mixes the feed liquid and extractant for mass transfer. Subsequently, they flow through overflow baffles into the clarification chamber, where they separate into light and heavy phases under gravity. The separated light and heavy phases enter different outlets, completing one extraction cycle. In actual production, the extraction tank is typically a multi-stage series configuration, including extraction, back-extraction, washing, and regeneration sections, among others, which should be configured according to the specific production process.
To meet customer needs, Zhengfen Distillation offers extraction equipment consultation and services: from initial communication and planning of process objectives or operational conditions, to scheme design, customized production, and manufacturing, helping you build the ideal extraction equipment, providing you with greater peace of mind and convenience. Welcome to inquire!
Hotline for inquiries: 15380766707!
Mixed Mass Transfer Process
Raw Material IntroductionThe feedstock liquid and extractant are separately 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 feedstock liquid, while an organic extractant is introduced as another liquid phase into the mixing chamber.
Agitate and mixThe mixing chamber is equipped with a stirrer, which rotates at high speed to ensure 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 are crucial for mass transfer efficiency; insufficient stirring can result in inadequate contact between the two phases, reducing mass transfer efficiency, while excessive stirring may lead to 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 a spacious 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 different densities of the raw liquid and the extracting agent, under the action 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 may lead to emulsification, increasing the difficulty of subsequent separation.
Key Features
● High-grade efficiency
●Simple Structure: The extraction tank typically consists of a tank body, interface adjustment pipe, motor reducer, stirrer shaft, impeller, speed regulator, and a movable platform, etc., with a relatively simple structure.
●Stable Operation, High Adaptability: Due to the larger volume of the extraction tank and higher liquid storage capacity, it can accommodate fluctuations in a certain range of materials and liquids. After balancing, the operation is relatively stable and highly adaptable.
● Scalable Reliability: The design parameters such as single-stage extraction rate 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, customizable according to customer's process requirements. Welcome to inquire:15380766707 ！
Complete extraction tank equipment and engineering project applications
Process Design: Design a reasonable extraction process according to customer requirements.
● Equipment Selection: Choose the appropriate extraction tank model and configuration based on different material series.
Engineering Design: Includes equipment layout, piping design, instrumentation 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 joint trial run on-site.
●Staff Training: Provide systematic training for customers' operators.
● After-Sales Service Comprehensive after-sales service ensures long-term stable operation of the equipment.
Containerized complete trial extraction tank
