Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of sodium lignosulphonate powder cas 8061-51-6 in China. Welcome to wholesale bulk high quality sodium lignosulphonate powder cas 8061-51-6 for sale here from our factory. Good service and reasonable price are available.
Sodium lignosulphonate powder is an organic substance, chemical formula is C20H24Na2O10S2 and CAS 8061-51-6, brown powder or liquid. No special odor. It is non-toxic, soluble in water and alkali liquor, and has strong dispersion ability when it is precipitated by acid. Lignin is a natural macromolecular polymer with the content second only to cellulose and chitin in nature. One of its most extensive uses is to transform it into lignosulfonate through sulfonation modification, including sodium lignosulfonate, which can be used as an additive for polymer and concrete, and has the advantages of low cost and environmental friendliness.
Sodium lignosulfonate, as a natural polymer, has shown wide application value in more than ten fields such as industry, agriculture, environmental protection, and new energy due to its unique dispersion, bonding, complexation, and emulsion stability characteristics.
1. High-range water reducer
By adsorbing onto the surface of cement particles to form a charge repelling layer, the cement particles are evenly dispersed, reducing water consumption by 10% -15% and hydration heat by 15% -20%, significantly improving the fluidity and crack resistance of concrete. Its composite products (such as compounding with naphthalene based water reducing agents) can be made into non precipitating liquid additives, meeting special needs such as pumping, early strength, and slow setting. For example, in high-temperature construction during summer, adding sodium lignosulfonate to concrete can delay setting for 1-3 hours, avoiding cracking problems caused by rapid hardening.
2. Ceramic body reinforcing agent
In the production of wall tiles and refractory bricks, sodium lignosulfonate as a binder can increase the strength of the green body by 20% -60% and reduce the drying cracking rate by more than 30%. The hydroxyl groups (- OH) in its molecular chain form hydrogen bonds with the silicates in the ceramic raw materials, enhancing the binding force between particles, while reducing the sintering temperature by 50-100 ℃ and shortening the production cycle. According to data from a large ceramic factory, the use of sodium lignosulfonate has increased the yield from 75% to 92%, resulting in annual energy cost savings of over one million yuan.
3. Coal water slurry additive
In the preparation of coal slurry, sodium lignosulphonate powder can increase the concentration of coal slurry to 65%, reduce viscosity by 300mPa · s, and extend the stability period to 15 days. Its dispersing effect evenly suspends coal particles, reduces oxygen and coal consumption during gasification, and improves the efficiency of cold coal gas by 5% -8%. After being applied in a coal chemical enterprise in Inner Mongolia, the production cost of a single ton of coal water slurry has been reduced by 18 yuan, and the annual efficiency increase has exceeded 10 million yuan.
Petroleum industry: key additives for improving oil recovery and optimizing drilling efficiency
1. Surface active agents for tertiary oil recovery
Sodium lignosulfonate reduces the residual oil saturation from 30% to below 15% by lowering the interfacial tension between oil and water. Its modified products (such as compounding with polyacrylamide) can serve as sacrificial agents, preferentially adsorbing on rock surfaces, unblocking oil flow channels, and increasing recovery rates by 8% -12%. Experiments in Daqing Oilfield have shown that the use of lignosulfonate profile control and plugging agents can increase daily oil production by 2.3 tons and reduce water content by 7 percentage points in a single well.
2. Drilling fluid treatment agent
As a filtrate reducer, sodium lignosulfonate can reduce API filtration loss to<15ml, inhibit shale swelling rate to>70%, and achieve a biodegradation degree of 90%, which meets environmental requirements. The sulfonic acid group (- SO ∝⁻) in its molecule forms stable complexes with calcium and magnesium ions to prevent wellbore collapse. In the deep well operation of Chuanqing Drilling Company, this additive shortened the drilling cycle by 15% and reduced the accident rate by 40%.
3. Chromium free drilling diluent
A chromium free diluent with a temperature resistance of over 200 ℃ can be prepared by chelating tannin extract with formaldehyde modified sodium lignosulfonate and ferrous ions. Its mechanism of action is to reduce the surface Zeta potential of bentonite, while reducing particle aggregation through steric hindrance effect, resulting in a 30% -50% decrease in slurry viscosity. This technology has been promoted in Sinopec Shengli Oilfield. After replacing traditional chromium based diluents, the cost of single well treatment has been reduced by 60%, and there is no risk of heavy metal pollution.
1. Fertilizer slow-release agent
Sodium lignosulfonate chelates nutrients such as nitrogen, phosphorus, and potassium to slow down fertilizer release and increase utilization by 20% -30%. The carbonyl group (- C=O) in its molecule forms hydrogen bonds with urea, reducing volatilization losses. In the cultivation of corn in black soil in Northeast China, the addition of slow-release fertilizer containing sodium lignosulfonate increased the nitrogen fertilizer utilization efficiency from 35% to 58%, and the yield increased by 12%.
2. Pesticide dispersant
As the core component of wettable powder (WP), sodium lignosulfonate can increase pesticide suspension by 30%, evenly disperse particles in water, and achieve a hard water resistance of level 5 (German standard).
Its wetting time is less than 30 seconds, significantly improving the spreading of the liquid on the surface of the leaves. An experiment conducted by a multinational pesticide company showed that the use of sodium lignosulfonate dispersant as an insecticide increased field efficacy by 18% and reduced dosage by 25%.
3. Soil amendment
Sodium lignosulfonate can promote the formation of soil aggregate structure and improve water and fertilizer retention capacity. The decomposition product humic acid can activate fixed phosphorus and potassium in the soil, increasing the content of effective nutrients. In the arid northwest region, the application of sodium lignosulfonate increased soil porosity by 15% and crop root growth by 22%.
1. Cooling water scale inhibitor and dispersant
Sodium lignosulfonate inhibits the formation of calcium carbonate and calcium sulfate scale by chelating calcium and magnesium ions, with a thermal stability of up to 250 ℃, making it suitable for high-temperature industrial circulating water systems. After being applied in the cooling tower of the steel plant, the heat transfer efficiency of the heat exchanger increased by 12%, the cleaning cycle was extended to 6 months, and the annual water-saving cost exceeded one million yuan.
2. Boiler water corrosion inhibitor
The phenolic hydroxyl groups in its molecules form a passive film with iron ions to prevent metal corrosion, with a corrosion inhibition rate of>90%. Sodium lignosulfonate can replace toxic corrosion inhibitors such as sodium nitrite in boiler water of power plants, reducing the cost of wastewater treatment by 30%.
3. Sewage treatment flocculant
Modified sodium lignosulphonate powder (such as grafted acrylamide) can efficiently remove dye molecules from printing and dyeing wastewater, with a COD removal rate of over 85%. Its mechanism of action is charge neutralization and bridging adsorption. Compared with traditional polyacrylamide, the dosage is reduced by 40%, and there is no risk of secondary pollution.
1. New energy materials
Sodium lignosulfonate and graphene composite can be used to prepare high-performance biochar based electrode materials for supercapacitors. Its porous structure provides a high specific surface area (>1500m ²/g), a conductivity of 10S/cm, and a threefold increase in energy density. The material developed by the Hunan University team has been mass-produced and applied to energy storage systems for electric vehicles.
2. Functionalization of nanomaterials
Through π - π conjugation, sodium lignosulfonate can uniformly disperse multi walled carbon nanotubes in water with a solubility of 1.5mg/mL.
Functionalized carbon nanotubes can serve as anchoring centers for quantum dots, which can be used to prepare high-sensitivity sensors. This technology has been applied in the field of environmental monitoring, with a detection limit as low as ppb level.
3. Synthetic resin substitutes
Sodium lignosulfonate can replace 50% phenol and formaldehyde in condensation to prepare environmentally friendly phenolic resin. The thermal stability and mechanical properties of its product are comparable to traditional resins, but the formaldehyde emission is reduced by 80%. It is widely used in fields such as wood adhesives and mold manufacturing.
1. Feed adhesive
Replacing urea formaldehyde resin, sodium lignosulfonate can increase the molding rate of pellet feed to over 98% and improve water resistance by 50%. Its natural ingredients comply with feed safety standards, reducing dust pollution and improving feed utilization in livestock and poultry farming.
2. Electroplating additives
As a coating homogenizer, sodium lignosulfonate can avoid dendritic patterns and improve electroplating quality.
In the chrome plating process of automotive parts, the uniformity error of coating thickness is less than 5%, and the yield rate is increased to 99%.
3. Leather tanning agent
The sulfonic acid groups in its molecules bind with leather collagen fibers to improve softness and durability. Compared to traditional chrome tanning agents, the leather tanned with sodium lignosulfonate has a reduced shrinkage temperature of 10 ℃ and no residual heavy metals.
Preparation of sodium lignosulphonate:
Completely dissolve the purified lignin and Na2SO3 in NaOH solution with pH of 13, and then put the solution into a hydrothermal reactor to react at 165 ℃ for 5h to obtain the product sodium lignosulfonate solution. The synthesis mechanism of sodium lignosulfonate is shown in Figure 1.(3)
Sodium lignosulphonate powder is a kind of lignosulfonate. Lignin is a natural macromolecular polymer with the content second only to cellulose and chitin in nature, which can be produced about 6% every year in the world × 1014t, as a filling and bonding material, can strengthen the interaction between plant cellulose, and is also a component that must be removed for large-scale extraction and utilization of plant cellulose.
Lignin is a high molecular weight polymer with three basic structural units of guaiacyl, syringyl and p-hydroxyphenylpropane connected by C-C bond, C-O-C bond, etc.
In the papermaking pulping process and the bioethanol production process, lignin residues form a large number of industrial lignin in the waste liquid. One of the most extensive uses of lignin is to transform it into lignosulfonate through sulfonation modification. The sulfonic group determines that it has good water solubility and can be widely used as an auxiliary in construction, agriculture, light industry and other industries.
Lignin molecule is a network molecule connected by its basic structural units. The molecule contains methoxy, hydroxyl, carbonyl, phenolic hydroxyl and other functional groups. Therefore, lignin can undergo a variety of chemical reactions, such as sulfonation, oxidation, phenol, condensation and graft copolymerization. These reaction pathways are the theoretical basis for lignin modification and development and utilization.
Hot Tags: sodium lignosulphonate powder cas 8061-51-6, suppliers, manufacturers, factory, wholesale, buy, price, bulk, for sale