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HS-CODE
29-
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Detailed Description
Calcium lignosulphonate
CAS #: 8061-52-7
As a multi-component polymer anionic surfactant, the calcium lignosulphonate (MG) is a brown yellow powdery substance in appearance and gives off slight aroma, with the molecular weight of 800 to 1,000 usually and strong dispersibility, cohesiveness and chelating property. At present, the calcium lignosulphonate products of the company have already be widely used as water reducing admixtures for cement, pesticide suspension concentrates, ceramic body reinforcing agents, coal water slurry dispersants, tanning agents for leather, refractory material binders, carbon black granulation agents and so on, are used in various industries and have won a good reputation among users.
Indicators:
Appearance: Black or brown powder
Reducing substance: NMT 8%
Moisture: NMT 6%
pH value: 5.0 -7.0
Water insolubles: NMT 1.5%
Inorganic salt (Na2SO4): NMT 4.0%
Total content of Ca and Mg: NMT 1.5%
Lignosulphonate: 45% - 60%
Application:
1. Used as a water reducing admixture for concrete: the mixing amount of the product is 0.25 to 0.3 percent of the weight of the cement, and it can reduce the water consumption by more than 10-14 percent, improve the workability of the concrete, and improve project quality. It can inhibit slump loss when used in summer, and is usually compounded with superplasticizers.
2. Used as a mineral adhesive: in the smelting industry, the calcium lignosulphonate is mixed with mineral powder to form mineral powder balls which are placed into a kiln after being dried, which can greatly improve smelting recovery rate.
3. Refractory materials: When bricks and tiles made of refractory materials are produced, the calcium lignosulphonate is used as a dispersant and an adhesive, which can remarkably improve operating performance, and has good effects such as water reduction, reinforcement, cracking prevention and so on.
4. Ceramic: When the calcium lignosulphonate is used for ceramic products, it reduces carbon content, improves green strength, reduces the consumption of plastic clay, has good slurry fluidity, improves the rate of finished products by 70 to 90 percent, and reduces the sintering speed to 40 minutes from 70 minutes.
5. When used as a feed adhesive, it improves the palatability of livestock and poultry, has good particle strength, reduces the micro-powder amount of feeds, decreases the return rate of powder, and lowers the cost. The loss of moulds is reduced, the production capacity is improved by 10 to 20 percent, and the allowable mixing amount in the feeds is 4.0 percent in USA and Canada.
6. Others: The calcium lignosulphonate can also be used for refining additives, casting, processing of pesticide wettable powder, briquette pressing, mining, ore dressing agents for ore dressing industry, the control of roads, soil and dust, tanning fillers for leathermaking, carbon black granulation and so on.
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