The main reason for extracting copper from copper-containing wastewater is that some wastewater contain high concentrations of metallic copper, which needs to be extracted and recycled to achieve resource recycling. At the same time, the wastewater can also be subjected to subsequent biochemical treatment. So which extraction equipment is better? At present, the extraction equipment on the market mainly includes centrifugal extractors, mixer settlers, extraction towers, reactors and other equipment. The following is a brief introduction by the technical engineer of Zhengzhou Tiei Extraction Technology.

First of all, when customers choose extraction equipment, they should choose suitable equipment according to the extraction needs, the performance characteristics of the equipment need to be paid attention to. Different extraction equipment has its own working principle and operation process. Some extraction equipment is intermittent operation, while others can be operated continuously. Then customers need to consider the extraction efficiency and operation stability so as to meet daily production requirements. At the same time, it is also necessary to pay attention to the separation effect. If the equipment is not completely separated during the extraction process, it will not work if there is entrainment.

Secondly, the material of the extraction equipment also needs to be considered. Some liquids are acidic, so the material selection needs to be corrosion-resistant. Customers should communicate well with the equipment manufacturer when purchasing.

At present, in the field of hydrometallurgy, the commonly used equipment for extracting metal elements is centrifugal extractors and mixer settlers. How to choose between these two extraction equipments, first of all, need to understand these two equipments.

Centrifugal extractor, CWL-M centrifugal extractor, is a new type of liquid-liquid extraction and separation equipment independently developed and produced by Zhengzhou Tiei Extraction Technology. It is improved and innovated on the basis of traditional annular gap extractor, and developed to address the shortcomings of traditional centrifugal extractors. The power consumption is only 10% to 30% of the traditional annular gap type. The centrifugal extractor relies on centrifugal force to extract and separate two-phase liquids, which can achieve rapid mixed mass transfer and separation effects. At the same time, the centrifugal extractor has a short stage residence time, rapid phase separation, high extraction efficiency, and saves investment costs and solvent recovery and regeneration costs.

Mixer settler is a kind of equipment with relatively mature technology and a long history of use. Most companies use modified equipment. However, with the continuous upgrading of technology, new centrifugal extractors have emerged. They have replaced traditional extraction equipment and have better benefits.

Through the above simple introduction, when extracting metal elements or extracting and recovering metal elements from wastewater, you can refer to the above introduction to choose which extraction equipment to use. However, different projects need to consider different aspects. If you have a project that you want to extract, you can contact us.
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