Non-ferrous metal extraction such as nickel, coblat, lithium, rare earth element recovery

Non-ferrous metal extraction such as nickel, coblat, lithium, rare earth element recovery

Liquid-liquid extraction is an important separation technology, with a wide range of applications in the modern process industry. The extraction process is based on different solubilities of components in two immiscible, or partially miscible, liquids. The components that need to be recovered are extracted from the feed stream with the help of an extractant (often called solvent). Both liquids have to be thoroughly contacted and subsequently separated from each other again. To achieve high purities and yields, it is necessary to operate with multiple stages and with the liquids flowing countercurrently.

Our liquid-liquid extraction is a technically sophisticated separation technology, offering you a solution where other technologies are uneconomical or even not feasible. 

Centrifugal extractor is a new type of liquid-liquid extraction and separation equipment, with fast and efficient advantages, it has essential difference in principle with traditional extraction equipments such as mixer settler, extraction column and so on. Centrifugal extractor adopt   motor to drive the drum with high-speed rotation, under the shear force generated by drum or blade rotation condition, two different density and immiscible liquids complete mixing and mass transfer, and separated rapidly under the centrifugal force action which generated by high-speed rotation of drum.

Mixing and mass transfer process：

Light and heavy phases of solution enter in the internal mixing zone of shell from two feed inlets separately in a certain ratio, mixed and separated rapidly, to complete mixing and mass transfer process.

Separation process：

Under the action of the feeder or turbine disc, the mixed liquor enter in drum, in the cavity formed by web, it soon rotated with drum synchronously, under the condition of centrifugal force, during the upward flow process, the heavier liquid flow   away from the drum center and towards to the drum wall, while the lighter liquid flow    away from the drum wall and towards to the drum center, clarified liquids enter in collecting chamber through their respective weirs and discharged from light and heavy phase outlets, to complete separation process.

You can find our equipment in almost all industrial applications. Our portfolio is based on a number of modern, efficient types of extractors.

1. Wastewater treatment (such as phenolic wastewater treatment, waste acid water treatment);

2. Pharmaceutical industry (such as preparation of pharmaceutical intermediates, Chinese medicine purification);

3. Hydrometallurgy industry (such as copper, vanadium, nickel, rare earth elements and so many elements’ extraction and separation);

4. Food industry (such as edible oil, food pigment, additive, lactic acid, citric acid and other extraction or separation);

5. Fine chemicals (such as spice extraction, raw material of cosmetics extraction, vanillin extraction);

6. Oil-water separation (such as remove water from crude oil/heavy oil/diesel and so on);

7. Nuclear industry (such as uranium extraction)

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