Mixer Settler Lithium extraction from salt brine

Company: xxx lithium company
Production time: 2023.10
Equipment: Mixer Settler

PROBLEM:
:
1. The composition is complex, and quality of brine is lower than South America salar;
2. high Mg/Li ratio, the ratio is several times or even a hundred times higher than other countries. So this has brought certain difficulties to the development of lithium resources.

For the brine system of high magnesium chloride salt lakes, the extraction rate is relatively low if only use TBP as extractant. And this method has also disadvantages of strong corrosion on equipment, big loss of the extractant/solvent, and is prone to environmental pollution.

SOLUTION:
Prosea tech launched Mixer Settler combined with unique technology, perfectly solve the problem of corrosion, solvent loss, environment pollution in the process of lithium extraction. At the same time, the extraction rate can be increased.

1). extraction section: mixing the brine and solvent , feed into our Mixer Settler, 4-5 stages counter-current extraction, solvent is consisted of Tributyl phosphate and kerosene.  
2). Back extraction section: loaded solvent will be back extracted in the Mixer Settler, 3-4 stages counter-current back extraction, solvent is consisted of 4-6mol/l hydrochloric acid.

Result and Why:
Our DLE solvent extraction technology can achieve the high efficiency of lithium resource separation. It is a sharp tool for large-scale development of lithium resources in salt lakes. Good application effect and received high praise from customers.

Customer Evaluation:
Our lithium extraction process system runs stably and has good application results.