Lithium, as an energy metal in the 21st century, known as "metal monosodium glutamate" and "white oil", has been widely used in nuclear energy, power batteries, aerospace materials and other fields. It is regarded as a national strategic mineral resource by many countries. Lithium resources mainly come from lithium ore and salt lake brine, after treatment and refining, high concentration of lithium mother liquor is obtained. However, in the process of lithium deposition, lithium carbonate is slightly dissolved in water, resulting in 10% to 20% of lithium entering the mother liquor of lithium deposition, making it a complex salt system with high sodium and low lithium. This makes the extraction of residual lithium Li+ with a certain value, but more difficult.

In order to achieve efficient extraction of lithium, Shandong Lian-extract has developed a multistage countercurrent extraction system with an efficient centrifugal extractor. This system uses an advanced extraction-scrubing-stripping and clarifying process, combined with a new high-efficiency extractant. Through this new technology, the discharge of high sodium salt wastewater can be effectively reduced. In order to cope with the acid and alkali corrosion condition, the flow part of Shandong Lian-extract centrifugal extractor adopts acid and alkali corrosion resistant fluorine material, which has long service life and low power consumption. The machine has been proven by engineering practice in harsh application environments for many years.

At present, the price of energy materials continues to decline, and the efficient extraction of lithium in the mother liquor of sunk lithium has important economic significance for enterprises. The wet centrifugal solvent extraction equipment of Shandong Lian-Extract Company has been widely used in the field of new energy, such as extraction of lithium, nickel, cobalt, manganese, copper, phosphoric acid, vanadium and other metal elements, wet decommissioned battery recovery, precursor/cathode material washing and filtration, and related tailings/slag extraction. The company has accumulated a wealth of technical and engineering experience, and has made great contributions to major projects in the industry.