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What are the main uses of Calcium Lignosulphonate?
Calcium lignin sulfonate has a wide range of uses. In civil engineering, it is often used as a water reducing agent. When mixing concrete, adding this agent can reduce the amount of mixed water without damaging its workability. In this way, the strength of concrete can be improved, and the durability can also be enhanced.
In the mining field, it is also useful. During flotation, it can be used as a dispersant to make the ore particles evenly dispersed in the liquid, which is convenient for separation and improves the efficiency of mineral processing.
In the paper industry, it is also indispensable. It can be used as a cooking aid to help the dissolution of lignin, reduce the cooking time and the amount of chemicals, and can improve the water filtration performance of pulp and improve the quality of paper products.
In the field of agriculture, it can be used as a soil conditioner. Applied to the soil, it can increase the granular structure of the soil, improve the water and fertilizer retention capacity of the soil, and is beneficial to the growth of crops. It can also be used as a slow-release agent for fertilizers to release fertilizer nutrients slowly and improve the utilization rate of fertilizers.
In road engineering, it can be used as a dust-proof agent. Sprinkled on soil roads, it can absorb dust, reduce the damage of dust, and maintain the cleanliness of roads and the good surrounding environment.
From this point of view, calcium lignin sulfonate plays an important role in various industries. Its effectiveness is significant, and it is widely used. It has made great contributions to industrial production, agricultural development and engineering construction.
What are the Chemical Properties of Calcium Lignosulphonate
Callignin sulfonate is a very important chemical. Its chemical properties are unique.
In terms of its solubility, it is soluble in water and can form a uniform solution. This property makes it play an important role in many industrial processes, such as papermaking, concrete admixtures, etc. In the paper industry, because it is soluble, it can help lignin separate from wood fibers, thereby improving the efficiency and quality of paper production.
When it comes to surface activity, callignin sulfonate has a certain surface activity. This activity allows it to reduce the surface tension of liquids, making liquids easier to spread and penetrate. In concrete admixtures, by virtue of this surface activity, the working performance of concrete can be improved, such as improving its fluidity, making concrete smoother during pouring, and reducing water leakage and segregation, and enhancing the uniformity and stability of concrete.
Furthermore, it has ion exchange properties. Callignin sulfonate contains sulfonate ions in the molecular structure, which can exchange with other cations. In soil improvement, it can exchange metal ions in the soil, thereby changing the physical and chemical properties of the soil, enhancing the soil's ability to retain fertilizer and water, and creating a better environment for plant growth.
In addition, the chemical properties of callignin sulfonate are relatively stable. Under normal temperature and environmental conditions, it is not prone to violent chemical reactions. This stability ensures that it can maintain its own performance during storage and use, and does not deteriorate easily, providing a solid foundation for its wide application.
How Calcium Lignosulphonate is Stored
Calcium lignin sulfonate should be stored in a dry, cool and ventilated place. This substance is afraid of moisture. If it is placed in a humid place for a long time, it is easy to agglomerate and damage its performance. When storing, when a few inches off the ground, it should be supported by a wooden frame or backing plate to avoid direct contact with the ground and prevent moisture from invading from below. In the warehouse, the humidity should be controlled below 60%, and the temperature should not be too high, usually not more than 35 ° C. Excessive temperature may cause chemical changes and reduce its effectiveness.
And it needs to be placed separately from oxidants, acids and other substances, because of its chemical properties. If it coexists with such substances, it may cause adverse reactions and endanger safety. The place where it is stored should be clearly marked, so that people can know what it is at a glance, and it is convenient to use and manage it. It is advisable to check it regularly on weekdays to see if it is damp or deteriorated. If you see agglomeration, etc., you can deal with it quickly, and you can tap it and break it. If it deteriorates seriously, discard it and do not use it to avoid adverse consequences. Such storage can ensure the quality of calcium lignin sulfonate for emergencies.
What is the proportion of Calcium Lignosulphonate used in different industries?
Calcium lignin sulfonate has a wide range of uses and is used in different industries.
In the construction industry, this is the key ingredient of water reducing agent. In the past, in order to make concrete have good fluidity and plasticity, it was often necessary to add a lot of water, but more water caused poor strength of concrete in the later stage. With calcium lignin sulfonate, only a small amount of water is required, and concrete can achieve ideal construction performance. If building city walls, adding an appropriate amount of this agent to the mortar can make the mortar easier to apply and stronger, save water and improve quality.
In the paper industry, it can be used as a dispersing agent. When making paper, the fibers need to be evenly dispersed in water to form a suspension in order to produce uniform paper. If the fibers are agglomerated, the paper will be uneven in thickness and strength. Calcium-lignin sulfonate can spread the fibers evenly to produce high-quality paper. Ancient papermakers carefully comb the fibers to make the paper even.
In the agricultural field, it can be used to prepare fertilizers. It can improve the physical properties of fertilizers, prevent agglomeration, and make fertilizers easier to store and apply. And it can be used as a slow-release agent to release nutrients slowly and improve the utilization rate of fertilizers. If ancient farmers fertilize and improve fertilizers with it, the fertility will be able to nourish crops for a long time.
When oil is mined, it is used as an additive for drilling mud. It can reduce mud viscosity and shear force, prevent clay particles from settling, stabilize the well wall, and ensure smooth drilling. Like the ancients who dug wells and used their protective walls to stabilize the shaft.
What is the production process of Calcium Lignosulphonate?
Calcium-lignin sulfonate, the process of making it, is quite complicated. At first, it is derived from lignin, which is a natural polymer contained in wood and other plants.
The waste liquid of sulfite papermaking is collected, which is rich in lignin sulfonate. First, the lime milk is used to complex calcium ions with lignin sulfonate, and then the calcium-lignin sulfonate is precipitated.
Then, the separation technique is performed, and the precipitation is often filtered or centrifuged to separate it from the remaining liquid. The resulting precipitation, or containing impurities, needs to be purified again.
The purification method is washed with water to remove soluble impurities; it is also extracted with organic solvents to make the purity of calcium-lignin sulfonate higher.
After that, it is dried, which can be dried in hot air, spray dried, etc., and the wet calcium lignin sulfonate is turned into a dry powder for storage and use.
This technical calcium lignin sulfonate can be used in various fields. In concrete, it is a water reducing agent, which can reduce the water-cement ratio, increase its strength and workability; in pesticides, it is a dispersant, which helps pesticides to disperse evenly; in oil drilling, it is a mud treatment agent, stabilizing mud properties. Its exquisite craftsmanship is a common method for industrial production, and it is of great benefit to the chemical industry and other industries in the world.