UC272 is an acidic organophosphorus extractant; other members of this class include P204 and P507. P204 is widely used for the extraction of zinc, iron, manganese, and other elements, primarily in the early stages of smelting ternary precursor materials to remove impurities. P507 is mainly employed for the extraction and separation of nickel and cobalt as well as for the smelting of rare-earth elements; it is the most important acidic extractant and currently serves as the primary extractant in the industrial production of battery-grade cobalt sulfate and the enrichment and separation of light rare-earth elements. As an upgraded version of P507, UC272 boasts a nickel–cobalt separation factor of 7,000, significantly higher than that of P507 (280) and P204 (14). It is extensively used in the production of battery-grade nickel sulfate and battery-grade manganese sulfate and is a widely adopted extractant in the manufacturing of ternary battery materials. Moreover, compared with P204 and P507, UC272 requires a lower extraction acidity, is easier to back-extract, and exhibits excellent selectivity toward rare earths—particularly heavy rare earths. Consequently, its application has expanded from nickel–cobalt separation to the extraction and separation of rare earths, thereby driving rapid development in the rare-earth industry.

Youcui 811 is a modified organic-acid-based extractant whose selectivity for the separation of Ni²⁺, Co²⁺, and Mn²⁺ from Mg²⁺ is markedly superior to that of P204, P507, and C272, making it highly promising for applications in lithium-ion battery recycling and in the hydrometallurgical extraction, separation, and purification of nickel and cobalt.

Rubidium and cesium are distinguished by their exceptionally high photoelectric thresholds and extremely low work functions, endowing them with outstanding photoelectric properties. It is precisely these unique physicochemical characteristics that render rubidium and cesium indispensable in aerospace, defense, and other critical applications.

Youcui 936 extractant is primarily used for the extraction of Li under alkaline conditions. ⁺ , to achieve Li/Na and Li/K separation as well as Li concentration ⁺ The objective is to achieve the efficient, low-carbon, comprehensive utilization of lithium resources.