In the chemical industry, the core role of nano-separation membranes lies in achieving efficient and energy-saving separation and purification of substances. Through precise molecular-level sieving, they are widely used in key processes such as product concentration, catalyst recovery, organic solvent dehydration, and waste resource utilization. They can significantly reduce production energy consumption, replace traditional high-energy-consuming distillation and evaporation processes, and at the same time improve product purity and yield, helping chemical production to upgrade towards a green and sustainable direction.