Lignosulfonate Lignin mainly used in oilfield drilling, composite fertilizer

Lignin is an amorphous, aromatic polymer with oxophenyl alcohol or its derivatives in its molecular structure, which is widely found in plants.

Lignin is a surfactant, can be modified, processed, compounding and other methods to produce a number of products, mainly used in resins, rubber, dyes, ceramics, cement, asphalt, feed, water treatment, coal water slurry, concrete, refractory materials, oilfield drilling, composite fertilizer, smelting, casting, adhesives. Experiments have proved that lignosulfonate is very effective in preventing sandy soil and can also be used as a desert fixing agent.

Lignin is a plant extract that is condensed and modified and then spray-dried. Light yellow (brown) free flowing powder, easily soluble in water, chemical stability, long-term sealed storage does not decompose.

1. Concrete superplasticizer: It is a powdery low-permeability retarding superplasticizer, which is an anionic surface active substance. It has adsorption and dispersion effect on cement and can improve various physical properties of concrete. Reduce water use by more than 13%, improve the workability of concrete, and can greatly reduce the initial hydration heat of cement hydration, can be mixed into early strength agents, retarding agents, antifreeze, pumping agents, etc., and naphthalene series of highly efficient water reducing agent after the mixture of liquid admixture basically did not precipitate.

2, coal water slurry additives: adding lignin in the process of preparing coal water slurry, can improve the output of high mill, maintain the normal condition of the pulping system, reduce the pulping power consumption, so that the coal water slurry to increase the concentration, in the gasification process, oxygen consumption, coal consumption decreased, cold gas efficiency improved, and can reduce the viscosity of coal water slurry and achieve a certain stability and fluidity.

3, refractory and ceramic body strengthening agent: in the manufacturing process of large wall and firebrick, the raw material particles of the body can be firmly bonded, which can increase the dry strength of the body by more than 20%-60%.

4, fillers and dispersants for dye industry and pesticide processing: when used as dispersants and fillers for VAT dyes and disperse dyes, it can increase the color power of dyes, color more evenly, and shorten the time of dye grinding; It can be used as filler, dispersant and suspension agent in pesticide processing, which greatly improves the suspension rate and wettability of wettable powder.

5, as a binder for powder and granular materials: used for iron ore powder, lead-zinc ore powder, coal powder, coke powder pressure ball; Pressing of cast iron and cast steel sand mould; Mud brick wall and floor tile extrusion molding; High strength, good stability, good lubricating mold and other good results can be obtained in the pellet formation of ore.

6. At the same time, lignin is used as a diluent dispersant and viscosity reducer in drilling; Improve the flow of crude oil transportation and reduce energy consumption. In petroleum products, it is used as cleaning agent, dispersant, high alkaline additive, anti-rust agent, antistatic agent, emulsifying viscosifier, dewaxing and anti-waxing agent.