News

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,…

Today, as scattered metal resources are receiving increasing global attention, indium, as a key raw material for photovoltaic thin-film materials, high-end display panels, and semiconductor devices, plays a critical role in the stability of downstream industries. The stability of its…

Dihydroxybenzene has three isomers: catechol, resorcinol, and hydroquinone. They are widely used in pharmaceutical intermediates, pesticide synthesis, rubber antioxidants, dyes, photographic materials, and other fields. Due to the extremely similar physicochemical properties and close boiling points of these three isomers,…