Application fields Sodium lignosulfonate has good solubility, high surface activity and dispersion properties because it contains more sulfonic acid groups and carboxyl groups and other active groups. It has good grinding aid, high surface activity and dispersion properties. Good, high thermal stability, good high temperature dispersion stability and other characteristics. Sodium lignosulfonate is a natural lignin modified product. It is a brown-yellow powder, non-toxic, flammable and has good chemical stability.

My country's sodium lignosulfonate products are mainly used in ordinary concrete water-reducing agents, oil drilling fluid diluents, pesticide dispersants, mineral powder binders, refractory material binders, etc. Only a small amount is refined into dye dispersants, etc. High value-added products. Therefore, the current variety of lignin products is still relatively single, and there are still many uses to be developed. Therefore, in the future, the development of lignin series products, improvement of quality, and expansion of application fields and markets will bring new economic growth points.

The social benefit project construction of sodium lignosulfonate uses the advanced pollution prevention and control technology recommended by the state to extract lignin products from papermaking black liquor and reduce COD emissions. On the one hand, it solves the problem of wastewater treatment in the paper industry and ensures that the wastewater treatment in the next step reaches the standard. Emissions, the comprehensive utilization of originally discarded resources, not only reduces resource waste, protects the environment, reduces regional environmental pollution, and improves the quality of people's living environment. The project construction has achieved good results, satisfying the government and supporting the people.