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In numerous industrial sectors such as metallurgy, electroplating, battery manufacturing, and titanium dioxide production, the treatment and recycling of waste acid have long posed challenges that involve both environmental pressures and economic burdens. Among these challenges, the efficient and economical…

Each ton of waste circuit boards contains up to 30% base metals and 0.4% precious metals, with copper, gold, silver, and palladium being particularly valuable. Improper disposal of this discarded electronic waste will severely pollute soil and groundwater; however, scientific…

In the production of lubricant base oils, furfural refining is a crucial core process. Its purpose is to selectively separate desirable components (saturated hydrocarbons) from undesirable ones (aromatics, resins, and other impurities) in vacuum side line oil, thereby improving the…

Crude nickel sulfate raw materials contain various metallic impurities such as iron, copper, and zinc, as well as free acids. To achieve efficient purification, extraction is currently the most ideal process route. This technology, through a series of processes including…

The treatment of 7% acrylic acid wastewater during acrolein production has always been a pain point in the industry. Traditional toluene azeotropic dehydration processes are not only energy-intensive, but also suffer from problems such as highly toxic azeotropic agents, high…

Aqueous phenolic resin, known for its excellent heat resistance, adhesion, and mechanical strength, is widely used in coatings, adhesives, friction materials and composite materials. One long-standing challenge in its production and application is the effective removal of unreacted free phenol.…