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During the manufacturing processes of liquid crystal displays (LCDs) and semiconductors, large quantities of mixed waste acid containing acetic acid, nitric acid, and phosphoric acid are continuously generated. Among these components, phosphoric acid has relatively high recycling and utilization value,…

In fields such as hydrometallurgy, chemical separation, and environmental resource recovery, the selection of liquid-liquid extraction equipment directly affects production efficiency and operating costs. As two mainstream types of extraction equipment, mixer-settlers and centrifugal extractors often make industry professionals hesitate…

With the continuous growth in the global vehicle population and increasingly stringent exhaust emission standards, three-way catalytic converters, as core emission purification devices in automotive exhaust systems, have seen a significant increase in the use of platinum group metal (PGM)…

During the production of acrylic acid and acrylates, wastewater treatment has long been recognized by the industry as a major technical challenge. This wastewater originates from side reactions during the oxidation of propylene to produce acrolein. Part of the propylene…

In fine chemical production, acid washing, alkaline washing, and water washing are key processes for removing salts, free acids and alkalis, metal ions, and colored by-products from the organic phase. These processes directly affect the purity and yield of the…

The mature fermentation broth of citric acid has a complex composition. In addition to the target product, citric acid, it also contains mycelium, cellulose, raw material residues, and various acidic impurities such as oxalic acid, isocitric acid, and gluconic acid,…