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Calcium Oxide, with the chemical formula CaO, is a common inorganic compound, commonly known as quicklime. It usually appears as white to off-white lumps, powders or granules, and has a relatively high melting point (about 2572℃) and boiling point (about 2850℃). It is relatively stable at room temperature but has strong hygroscopicity and is prone to react with moisture in the air.
The production of calcium oxide mainly uses calcium carbonate as raw material and is realized through high-temperature calcination. Common raw materials include limestone, marble, etc. These raw materials are calcined at high temperatures in lime kilns, and calcium carbonate will decompose into calcium oxide and carbon dioxide.
| Item | Specification (%) | Test Result (%) | Conclusion | Remarks |
|---|---|---|---|---|
| CaO | ≥95 | 95.01 | Pass | |
| SiO₂ | ≤0.02 | 0.001 | Pass | |
| Fe₂O₃ | ≤0.05 | 0.03 | Pass | |
| Magnesium and Alkali Metals | ≤2.5 | 1.2 | Pass | |
| Activity Degree (120 seconds) | ≥60 degrees | 68 degrees | Pass | |
| Passing Rate through 200 - mesh Screen | 100% | 100% | Pass | |
| Passing Rate through 325 - mesh Screen | ≥95% | 99.52% | Pass | |
| Appearance | White Powder | White Powder | - |
High pure calcium oxide has the following advantages
The purity of our calcium oxide products covers a wide range of 90%-99%, which can accurately meet the diverse needs of different industries. For calcium oxide with a purity of 90%-95%, it shows extremely high cost performance in the basic industrial fields. For example, in the construction industry, it can be used to produce building materials such as lime mortar. Products with this purity can meet the basic needs of cementation and hardening. When used as a flux in the metallurgical industry, it can also assist in removing impurities such as silicates from ores by virtue of its moderate purity, ensuring the smooth progress of the smelting process.
The high-purity calcium oxide with a purity of 95%-99% focuses on fields with strict quality requirements. For instance, in the fine chemical industry, it can be used as a raw material for high-end catalysts. High purity can avoid the interference of impurities on catalytic reactions, ensuring the reaction efficiency and the purity of target products. In the environmental protection field, when dealing with high-concentration acidic wastewater, high-purity calcium oxide has stronger neutralization capacity and more thorough reaction, which can quickly adjust the pH value of wastewater and reduce secondary pollution caused by the introduction of impurities.
Qualification Certificate
Our Advantages
We have our own mine in Hubei Province, which endows us with the following advantages:
Stable Raw Material Supply: Owning our own mine ensures a stable supply of raw materials for calcified substances. This helps to avoid production interruptions caused by issues such as fluctuations in the raw material market and supply shortages. It guarantees the smooth progress of production plans and maintains a stable product output, enabling us to better meet customer needs and enhance customer satisfaction.
Controllable Raw Material Quality: Our company can directly manage and monitor the mining process of the mine, and strictly control the quality of raw materials. We are able to select appropriate ore grades and qualities according to production requirements, ensuring that the mined ore meets the high standards of our products. This provides a solid foundation for producing high-quality calcified substance products and helps to enhance the market competitiveness of our products.
Cost Advantage: Obtaining raw materials from our own mine reduces intermediate procurement links and lowers procurement costs. Moreover, in the long run, a stable raw material supply also enables our company to take the initiative in cost control and avoid the risk of cost increases due to fluctuations in raw material prices, thereby improving the company's economic benefits and profitability.
FAQ
Q: Are you a trading company or a factory?
A: We are a factory. We have two factories. One is located in Changshu, Jiangsu Province, and the other is in Jingmen, Hubei Province.
Q: What are your main products?
A: Calcium oxide, Calcium hydroxide, Light calcium carbonate, Heavy calcium carbonate，Nano calcium carbonate
Q: How do you control quality?
A: Our factory is equipped with professional technicians to control the quality, and the inspectors conduct a sample test every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other third party inspection.
Q: How to judge the quality of calcium oxide?
A: It can be judged by detecting indicators such as purity, activity and impurity content of calcium oxide. Calcium oxide with higher purity, better activity and lower impurity content has relatively better quality.
Q: Do you have any certifications?
A: Yes, we have ISO9001 and SGS. Meanwhile, we can provide MSDS, marine transportation identification reports, etc.
Q: How do I contact you to purchase a product?
A: Below is our contact information, please feel free to contact us at any time.
