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What are the main uses of Synthetic Cryolite?
Synthetic cryolite has a wide range of uses. In the field of metallurgy, it is especially heavy. It is used in the smelting of aluminum, which can reduce the melting point of alumina, reduce energy consumption, and make aluminum liquid and impurities easily separated, helping to improve the purity and quality of aluminum.
In the glass industry, synthetic cryolite also has wonderful uses. It can be used as a flux to promote the melting of glass raw materials, reduce the production temperature of glass, make the glass uniform in texture, better luster, and can increase the chemical stability and mechanical strength of glass.
In the ceramic industry, it can adjust the properties of glaze. Make the glaze smooth and bright, prevent cracking, and increase the beauty and durability of ceramic products.
The production of abrasive materials, synthetic cryolite is also indispensable. It can increase the hardness and wear resistance of the abrasive material, making the grinding efficiency higher and the effect better.
Furthermore, in the enamel industry, it can be used as a whitening agent to make the enamel surface milky white and improve the adhesion and corrosion resistance of the enamel.
Overall, synthetic cryolite has important functions in various industries, which is a good aid for industrial production.
What are the production processes of Synthetic Cryolite?
The production process for the synthesis of cryolite is roughly as follows. One is the hydrofluoric acid method, which is a common method. First, hydrofluoric acid is reacted with aluminum hydroxide to form aluminum fluoride acid. Then neutralize the aluminum fluoride with soda ash to obtain cryolite. The raw materials for this process are easy to obtain, but hydrofluoric acid is highly corrosive, and the production process needs strict protection.
The second is the fluorosilicic acid method. Fluorosilicic acid is a by-product of the phosphate fertilizer industry. It reacts with sodium chloride and aluminum hydroxide to produce cryolite. The reaction process is quite complicated. First, fluorosilicic acid reacts with sodium chloride to form sodium fluorosilicate, and then sodium fluorosilicate reacts with aluminum hydroxide under specific conditions to obtain cryolite. This process turns waste into treasure, but the process is lengthy, and the purity of the product needs to be controlled.
The third is the carbonation method. Sodium aluminate solution reacts with hydrofluoric acid, and then carbon dioxide is introduced to generate cryolite through a series of reactions. This process conditions are mild, but the cost of raw materials is high, which is limited to large-scale production or storage.
All processes have advantages and disadvantages. When choosing the use, it is necessary to weigh the factors such as raw material availability, cost, and product quality in detail. Only then can a suitable method be selected to achieve the purpose of efficient production of synthetic cryolite.
What are the advantages of Synthetic Cryolite compared to natural cryolite?
Compared with natural cryolite, synthesizers have many advantages.
First of all, production. Natural cryolite has limited reserves in the world, and as it is used more, its sources are gradually exhausted. Synthetic cryolite relies on chemical technology, can be mass-produced on demand, and can meet the growing demands of industry.
Times and quality. The quality of natural cryolite varies depending on the origin and ore vein, and impurities are often present. Synthetic cryolite is not the same. Through the fine control process, the quality can be guaranteed to be uniform and stable, and impurities can be reduced to a minimum. In the field of many cryolite applications such as aluminum, it is more conducive to the control of the production process and the improvement of product quality.
Furthermore, the cost. The excavation and purification of natural cryolite requires a huge amount of manpower and material resources, and the cost is high. Synthetic cryolite relies on large-scale production and technological refinement, and the cost is controllable and gradually lower. In industrial applications, it can reduce the cost of enterprises and increase its benefits.
Re-discussion of environmental protection. The mining of natural cryolite may cause damage to the landscape and ecological damage. Although the production of synthetic cryolite also involves chemical processes, today's technology strives to reduce consumption and reduce emissions, and has less disturbance to the environment.
In summary, synthetic cryolite has significant advantages over natural cryolite in terms of output, quality, cost and environmental protection. Therefore, it is increasingly used in today's industry.
What are the Quality Standards for Synthetic Cryolites?
Nowadays, there are synthetic cryolite, and its Quality Standards are related to many aspects. The content ratio of the first chemical composition, fluorine (F), sodium (Na), and aluminum (Al) must be accurate. Fluorine accounts for about 53% - 54%, sodium content is roughly 32% - 33%, and aluminum is between 12% - 13%. The proportion of these three is appropriate, which is the basis of quality.
Furthermore, the impurity content must be strictly controlled. For example, silicon dioxide (SiO2) should not exceed 0.2%, and ferric oxide (Fe2O3) should be less than 0.1%. The amount of sulfur (S) should also be small, about 0.05% or less. More impurities will damage its performance and be unfavorable for industrial use.
In terms of particle size, there is also attention to it. More need to go through a specific screen, common such as 200 mesh screen, the pass rate should reach more than 95%, the particle size is uniform, which is conducive to its dispersion and use effect.
Moisture content can not be ignored, usually should be less than 0.5%, more moisture is easy to cause agglomeration, affecting storage and application. Quality Standards for synthetic cryolite, chemical composition, impurities, particle size, moisture, etc. are all key, all of which meet the standards, in order to be a high-quality product, in the aluminum industry and other industrial uses have their place.
What is the price range of Synthetic Cryolite in the market?
The price of synthetic cryolite in the market today ranges from about 3,000 to 8,000 yuan per ton. The reason why the price has such a wide range is due to the high and low quality, the amount of supply and demand, and the change of market conditions. If the quality is excellent and the market needs it, the price will inevitably increase; if the quality is inferior and the supply exceeds the demand, the price will drop. And the cost of production also has a great impact on the price. The abundance of material sources and the simplicity of craftsmanship are all related to cost. If the cost is high, the price will be high, and if it is low, the price will be low. And the market situation, the changing situation, the rise and fall of the economy, and the direction of policy can all make the price fluctuate. Therefore, if you want to know the exact price, you must carefully observe the market situation and visit the merchants to obtain it.