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Concrete Admixture

Sodium Lignosulfonate As Admixtures Concrete

Sodium Lignosulfonate As Admixtures Concrete

Sodium lignosulfonate is an anionic surfactant, which is the reaction product of wood pulp with sulfur dichloride aqueous solution and sulfite....
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木钠-20.jpgSodium lignosulfonate

Sodium lignosulfonate is an anionic surfactant, which is the reaction product of wood pulp with sulfur dichloride aqueous solution and sulfite. It is a by-product of pulp production. It is generally a 4-hydroxy-3-methoxybenzene polymer. The molecular weight of lignosulfonates varies from 200 to 10,000 due to different wood species and different sulfonation reactions. The chemical structure of lignosulfonates has not yet been determined. Generally speaking, low molecular weight lignosulfonates are mostly straight chains, which are bound together in solution; high molecular weight lignosulfonates are mostly branched chains, which show the behavior of polymer mediators in water medium. Crude lignosulfonates are widely used in animal feed granulation, refined lignosulfonates are used as dispersants for oil drilling mud, ore flotation agents, dispersants for slime, dyes and pesticides, and have good chelating ability for metals, especially iron, copper and stannous ions. They are effective chelating agents.



1. For refractories, coal water slurry dispersants, binders and water reducing enhancers, the yield can be increased by 70%-90%.



2. It can be used in geology, oil field, well wall consolidation, water shutoff agent and profile control agent for oil exploitation and drilling mud additive, etc.


3. Used as pesticide filler, emulsifier and dispersant of wettable powder and plant growth regulator.


4. It can be used as water reducing agent for concrete and is suitable for construction of culverts, dams, reservoirs, airports and expressways.


5. Boiler as scale remover and circulating water quality stabilizer.


6. Sand control, sand fixing agents and soil amendments.

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7. For electroplating and electrolysis, the coating can be uniform and without dendritic pattern.


8. As tanning assistant in leather industry.


9. Used as flotation agent for beneficiation and binder for pulverized coal smelting and briquette binder.


10. Used as a compound additive of coal water slurry.


11. It can be used as a long-term slow-release nitrogen fertilizer, an improved additive for high-efficiency slow-release compound fertilizer and an adhesive for pelletizing chemical fertilizer and feed.


12. Used as filler, dispersant and diluent of acid dyes for vat dyes and disperse dyes.


13. It can be used as cathode shrinkage inhibitor for lead-acid batteries and alkaline batteries, which can improve the low-temperature rapid discharge and service life of batteries.


14. Used to prepare synthetic resins and adhesives.


15. It can be used as rubber reinforcing agent and asphalt emulsification.


16. It can be used as cement grinding aids to increase the output of ball mill by 20-25%, save electricity and reduce ball consumption.


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