| Customization: | Available |
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| CAS No.: | 1305-78-8 |
| Formula: | Cao |
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Quick Lime Lump Calcium Oxide for Steel Smelting
Calcium oxide is an inorganic compound,the chemical formula is CaO,the common name of quick lime.The physical property is a white powder on the surface,the impure is grayish white,it is light yellow or gray when containing impurities, and has hygroscopicity. Calcium oxide is an alkaline oxide and is sensitive to moisture. Easy to absorb carbon dioxide and water from the air. Reacts with water to form calcium hydroxide (Ca(OH)2) and produces a lot of heat.
Quick Lime Lump play an important role in steel smelting
When sintering iron ore, adding an appropriate amount of quick Lime Lump will react with impurities in the ore, generating some low melting point compounds. These compounds will form a liquid phase during the sintering process, promoting the bonding between particles and improving the permeability of the sintered material, making the sintering process smoother.
Calcium oxide can regulate the alkalinity of sintered ore, giving it a suitable mineral composition and structure, and improving its strength and reducibility. Appropriate alkalinity helps to form mineral phases such as calcium ferrite with higher strength, reduce the formation of glass like substances, and thus improve the quality and metallurgical properties of sintered ore.
In blast furnace ironmaking, quick lime is an important slag making material. The main components of gangue in iron ore are acidic oxides such as silicon dioxide and aluminum oxide. After adding quicklime, calcium oxide reacts with these acidic oxides to form slag with lower melting point and better fluidity. The main function of slag is to separate impurities from iron ore and cover the surface of the molten iron, protecting it from oxidation and regulating the alkalinity and fluidity of the slag, enabling the blast furnace to operate stably and efficiently.
During the ironmaking process, sulfur in the raw materials will enter the molten iron, affecting the quality of the iron. Quicklime can react with sulfur to produce sulfides such as calcium sulfide, which typically have a high melting point and density and can enter the slag for removal. Through this method, the sulfur content in the molten iron is effectively reduced, and the quality of pig iron is improved.
Phosphorus is one of the harmful elements in steel, which can cause cold brittleness and reduce the quality of steel. Quick Lime is one of the key reagents for dephosphorization in the steelmaking process. It reacts with phosphate ions to produce stable compounds such as calcium phosphate, which enter the slag to achieve dephosphorization.
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Q&A
Q: Are you a trading company or a factory?
A: We are factory.
Q: What is your main product?
A:Calcium oxide, calcium hydroxide
Q: How do you control the quality?
A: Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.
Q: How long time you can make the shipping?
A: We can make the shipping within 20 days after confirming the order.
Q: Where is your factory located? How can I visit the factory?
A: Our factory located in changshu jiangsu .Welcome to visit at any time, we can pick up the nearby machine factory.
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