详情描述

PP (Polypropylene) Extractor is a stepwise contact extraction device, consisting of a mixing system, mixing zone, clarification area, and phase separation zone. In each stage, the two immiscible liquid phases undergo mixing, clarification, and phase separation processes, thereby achieving mass transfer and separation of the target solute between different liquid phases.

Process Workflow

The specific operation process of the extraction tank (mixed clarification tank) involves the feedstock and extractant being pumped into the mixing chamber through their respective feed inlets by a feed pump. A high-speed agitator then facilitates the mixing and mass transfer between the feedstock and extractant. Subsequently, the mixture passes through overflow baffles into the clarification chamber, where the two phases—light and heavy—are separated under 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 stages such as extraction, back-extraction, washing, and regeneration, which are configured according to the specific production process.

To meet customer needs, Pure Extraction offers extraction equipment consulting and services: from initial communication on process goals or operational conditions, planning, design, customized production, and manufacturing, we help you build the ideal extraction equipment, providing you with greater peace of mind and convenience. Welcome to inquire!

Hotline: 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 extractant to fully contact and mix. Under the action of blending, the solute is transferred from the raw material liquid to the extractant, 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; excessive blending, however, 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 differing densities of the raw liquid and the extractant, 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 adjusting pipe, motor reducer, stirrer shaft, stirrer blades, speed regulator, and a movable platform, etc., featuring a relatively simple structure.

●Stable Operation and Strong Adaptability: Due to the larger volume of the extraction tank and the higher liquid storage capacity, it can accommodate fluctuations in the material liquid within a certain range. After adjusting and balancing, it operates more stably and has strong adaptability.

● Amplified Reliability: Design parameters such as single-stage extraction rates remain relatively reliable after amplification.

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  ！


Integrated extraction tank equipment and project applications

Process Design: Design a reasonable extraction process based on customer requirements.

● Equipment Selection: Choose the appropriate extraction tank model and configuration based on different product series.

● Engineering Design: Includes equipment layout, piping design, instrument control, PLC integration, etc.

● Equipment Manufacturing: Offer customized production and processing of extraction tanks according to requirements.

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

Staff Training: Conduct systematic training for customer operators.

● After-Sales Service We offer comprehensive after-sales service to ensure long-term stable operation of the equipment.

Complete set of trial extraction tanks for containers