Calcium lignosulfonate
Calcium lignosulfonate (referred to as wood calcium) is a multi-component polymer anionic surfactant. Its appearance is light yellow to dark brown powder with a slight aromatic odor. The molecular weight is generally between 800 and 10,000. Strong dispersibility, adhesion and chelating properties. It is usually made from the cooking waste liquid of acid pulping (or called sulfite pulping) by spray drying. Can contain up to 30% reducing sugars. It is soluble in water, but insoluble in any common organic solvents. The pH value of its 1% aqueous solution is about 4-6.
Molecular formula: C20H24CaO10S2
Odor: Aromatic smell
product description
Alias: calcium lignosulfonate; calcium lignosulfonate; lignocalcium; calcium lignosulfonate
Molecular formula: C20H24CaO10S2
Molecular weight: 528.61
Properties: Easily soluble in water, good stability.
Upstream raw materials: trisodium phosphate, caustic soda, ammonium nitrate
Downstream products: iron chromium lignosulfonate, concrete early strength water reducer
Technical index
Appearance brown yellow powder
Lignin content ≥50～65%
Water insoluble matter ≤0.5～1.5%
PH 4.-6
Moisture ≤8%
Water insoluble matter≤1.0%
Reductant 7～13%
Main performance
1. Used as a concrete water reducer: 0.25-0.3% of the cement content can reduce water consumption by more than 10-14, improve the workability of concrete and improve the quality of the project. It can be used in summer to suppress slump loss, and it is generally used in combination with superplasticizers.
2. Used as a mineral binder: in the smelting industry, calcium lignosulfonate is mixed with mineral powder to form mineral powder balls, which are dried and placed in the kiln, which can greatly increase the smelting recovery rate.
3. Refractory materials: When manufacturing refractory bricks and tiles, calcium lignin sulfonate is used as dispersant and adhesive, which can significantly improve the operating performance, and has good effects such as water reduction, reinforcement, and crack prevention.
4. Ceramics: Calcium lignosulfonate is used in ceramic products, which can reduce the carbon content to increase the green strength, reduce the amount of plastic clay, the fluidity of the slurry is good, and the yield is increased by 70-90%, and the sintering speed is reduced from 70 minutes to 40 minutes .
5. Used as a feed binder, it can improve the preference of livestock and poultry, with good particle strength, reduce the amount of fine powder in the feed, reduce the powder return rate, and reduce the cost. The loss of mold is reduced, the production capacity is increased by 10-20%, and the allowable amount of feed in the United States and Canada is 4.0%.
6. Others: Calcium lignosulfonate can also be used in refining auxiliary, casting, pesticide wettable powder processing, briquette pressing, mining, beneficiation agent, road, soil, dust control, tanning, leather filling, Carbon black granulation and other aspects.
Nature
It is soluble in water, slightly acidic and has good stability. Avoid prolonged contact with skin.
Storage method and packaging
Packed in multi-layer paper bags. Pay attention to moisture-proof during storage. 25KG/bag or 500KG/bag
Resolve Resolution
Take sodium sulfite pulp waste liquid as raw material, settle with lime water, acid dissolve, filter to remove impurities, and concentrate the filtrate.
Use
Can be used as dispersant, emulsifier, wetting agent, etc. Used in industrial detergents, pesticides, pesticides, herbicides, cement and concrete water-reducing agents, admixtures, dye diffusing agents, coke and charcoal processing, dyes and pigments, petroleum industry, wax emulsions, ceramics, etc.
