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Tea polyphenols are a collective term for polyphenolic compounds found in tea leaves and are among the important active constituents of tea. With the continued growth in demand for natural antioxidants, plant extracts, and functional ingredients, tea polyphenols have attracted…

In the fields of hydrometallurgy and resource recycling, zinc-rich solutions are common process feed solutions with significant recovery value. They are widely derived from leachates of electroplating sludge, intermediate solutions from battery recycling, and acid leachates of smelting dust. Although…

Driven by the global transition toward green and low-carbon development and the rapid growth of the new energy industry, NMP wastewater recovery is attracting increasing attention. Lithium-ion batteries, with their advantages of small size, light weight, and long cycle life,…

In the fields of new energy battery material recycling and hydrometallurgy, the extraction and separation of nickel-cobalt-manganese (NCM) ternary solutions is a key process that determines product purity and economic benefits. Such solutions have high metal concentrations and complex compositions,…

HMB, or β-hydroxy-β-methylbutyric acid, is an important raw material in the food additive and sports nutrition industries. During its production and purification, the efficient recovery of HMB from the aqueous phase is a key factor affecting product yield, purity, and…

In fine chemical production, the selection of extraction equipment directly affects product yield, purity, and overall production costs. The rotating disc extraction column and centrifugal extractor are two widely used types of extraction equipment. Proper equipment selection should be based…