详情描述

PVC Extraction Tank(Extraction boxes, extractors, and mixing clarification units) are a series of contact extraction equipment, consisting of a mixing system, mixing zone, clarification zone, and phase separation zone. In each stage, the two immiscible liquid phases are mixed, clarified, and phase-separated, 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 liquid material and extractant being pumped into the mixing chamber through their respective feed ports by a feed pump. A high-speed stirrer then mixes the material and extractant for mass transfer. Subsequently, they pass through overflow baffles into the clarification chamber, where separation of the light and heavy phases occurs under the force of gravity. The separated phases then enter different outlets, completing one extraction cycle. In actual production, the extraction tank is typically a multi-stage series configuration, including extraction, reverse extraction, washing, and regeneration sections, and the specific configuration depends on the production process.

To meet customer needs, Pure Extraction offers extraction equipment consulting and services: from initial process objectives or operational condition discussions, planning, design, customized solutions, manufacturing, etc., to help you build the ideal extraction equipment, providing you with greater peace of mind and ease. Welcome to inquire!

Hotline for inquiries: 15380766707!

Mixed mass transfer process

Raw Material IntroductionThe raw liquid to be extracted and the extracting agent are separately introduced into the mixing chamber of the extraction tank through their respective feed ports. For instance, in hydrometallurgy, a water solution containing metal ions serves as the raw liquid, while an organic extracting agent is introduced as another liquid phase into the mixing chamber.

Agitate and MixThe mixing chamber is equipped with a blender, which rotates at high speed, allowing the raw material liquid and solvent to come into full contact and mix. Under the action of blending, the solute is transferred from the raw material liquid to the solvent, forming a two-phase solution. The intensity and duration of blending have a significant impact on the mass transfer efficiency; insufficient blending may result in inadequate contact between the two phases, reducing the mass transfer efficiency, while excessive blending could 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 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 to the 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 efficiency level

●Simple Structure: The extraction tank typically consists of a tank body, interface regulating tube, motor reducer, stirrer shaft, impeller, speed controller, and a movable platform, etc., with a relatively simple structure.

●Stable Operation and High Adaptability: Due to the larger volume of the extraction tank and the higher liquid storage capacity, it can accommodate a certain range of fluctuations in the feedstock liquid. After balancing, the operation is relatively stable and highly adaptable.

● Scalable Reliability: The single-stage extraction efficiency 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, customized 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 based on customer requirements.

● Equipment Selection: Choose the appropriate extraction tank model and configuration for different series.

● Engineering Design: Includes equipment layout, piping design, instrumentation control, and PLC integration.

● Equipment Manufacturing: Offer customized non-standard production and processing of extraction tanks based on requirements.

● Installation and Commissioning: Carry out equipment installation, debugging, and联动试车 on-site.

Staff Training: Conduct systematic training for customers' operators.

● Post-sales Service Comprehensive after-sales service ensures long-term stable operation of the equipment.

Complete set of trial extraction tank for container