The extraction of metallic lithium is to extract lithium from raw materials such as ores, salar brine, waste batteries, and waste residues. Taking the extraction of lithium from salar brine as an example, the extraction method and extraction and separation equipment of metallic lithium are introduced.

At present, there are five main methods for extracting lithium from salar brine: extraction method, membrane separation method, ion method, calcination method, etc. Solvent extraction is a new green method that has been mainly studied in recent years.

Solvent extraction is a method of extracting metallic lithium by using organic solvents to extract lithium from salar brine. In the early stages, a small-scale experiment can be conducted to select a suitable extractant. The extractant and brine are injected into the centrifugal extractor at a certain ratio, and the lithium is extracted through the mixing and separation of the two-phase liquid.

Process Advantages of Solvent Extraction of Lithium

  1. High extraction efficiency and high product purity.
  2. The raffinate is easy to handle.
  3. The process is simple and easy to operate.

Lithium Extraction and Separation Equipment

The lithium extraction equipment selected here is the CWL-M centrifugal extractor, which is a new type of efficient extraction and separation equipment. It uses high-speed centrifugal force to separate two immiscible liquids with different densities. The CWL-M centrifugal extractor developed and produced by Zhengzhou Tiei Extraction Technology Co., Ltd. has many applications in the extraction of metal elements in the field of hydrometallurgy, and the process is also very mature. A variety of models can meet the different production needs of customers.

Performance Advantages of CWL-M Centrifugal Extractor

  1. The equipment occupies a small area and has low power consumption.
  2. High extraction efficiency and low investment cost.
  3. Strong corrosion resistance, which can realize continuous operation and intermittent operation.
  4. No bottom bearing and mechanical seal, which is maintenance-free.
  5. The mixing intensity can be adjusted and can be applied to systems that are easy to emulsify.
  6. High degree of automation and good operating environment.

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