What is Sodium Lignosulfonate

Sodium Lignosulphonate is the best water reducing agent of concrete.It is a good additive of coal water slurry.It is a kind of filler and dispersant of pesticide. It can be used in the production of deflocculant , dispersant and bulking agent of pesticide to improve the suspensibility and wettability of wettable powder, reinforcing agent of refractory material and ceramic.

Sodium lignosulfonate , CAS number of 8061-51-6,Sodium lignosulfite ; Sodium lignosulfonate ; Sodium lignosulfonic acid ; Sulfonated lignin sodium salt . It is soluble in water with the release of hydrogen ions. The resulting solutions have pH of less than 7.0. Sodium lignosulfonate is used in the food industry as a de-foaming agent for paper production and in adhesives for items that come in contact with food.

Sodium Lignosulfonate Production 

Sodium lignosulfonate is made from raw material of wood,after a series of process of filtration, inspissation, chemical modification and spray drying.It is a kind of natural anionic surfactant of high molecular polymer, which is rich in sulfo group and carboxyl and has better water-solubility, surfactivity and dispersion force.

Sodium Lignosulfonate Application

Sodium lignosulfonate (lignosulfonic acid, sodium salt) is used in the food industry as a de-foaming agent for paper production and in adhesives for items that come in contact with food. It has antimicrobial and preservative properties, and is used as an ingredient in animal feeds. It is also used for construction, ceramics, mineral powder, chemical industry, textile industry (leather), metallurgical industry, petroleum industry, fire-retardant materials, rubber vulcanization, organic polymerization.

The sodium lignosulphonate acts as a retarding and superplasticizer in the structure. It is an anionic surface-active material. Its adsorption and dispersion of cement can improve various physical properties of concrete. It can be compounded as early strength agent, retarder, antifreeze, pumping agent. The liquid admixture formulated with the naphthalene-based superplasticizer complex is substantially free of precipitates.

As cement water reducer, which causes the cement group to diffuse, precipitates moisture, increases its fluidity, thereby reducing mixed water and saving cement. When used in petroleum drilling slurry formulations, it can be used to reduce mud viscosity and shear forces to control the fluidity of the drilling mud. In this case, inorganic mud and inorganic salt impurities remain suspended in the well to prevent mud flocculation. It also has outstanding salt tolerance, calcium resistance, and high-temperature resistance.

Suitable for summer concrete, high-flow concrete, pumping concrete, concrete products, and concrete construction, as well as special requirements for slowing concrete, concrete piles, concrete pile sinks, hand-drilled concrete piles, and underground mass concrete construction, with good economy benefit.