Limestone Powder is widely used as a desulfurization agent in various industrial processes to remove sulfur dioxide (SO₂) from flue gases, helping to reduce environmental pollution. It is primarily derived from crushed and ground limestone, consisting mainly of calcium carbonate (CaCO₃).

Characteristics

• Material: Made from natural limestone that is crushed and finely ground, with calcium carbonate as the primary component.
• Appearance: White or light gray fine powder.
• Particle Size: Typically ranges from micrometers to millimeters, depending on specific application requirements.

Uses

1. Desulfurization:
   • Flue Gas Desulfurization: Limestone powder reacts with sulfur dioxide in flue gases to form calcium sulfate (CaSO₄), effectively removing SO₂ from emissions and reducing acid rain formation.
   • Emission Control: Commonly used in flue gas desulfurization systems in power plants, steel mills, cement factories, and other industrial facilities to meet emission standards.
2. Water Treatment:
   • Water Quality Improvement: Can be used in certain water treatment processes to neutralize acidic substances, improve water quality, and remove some contaminants.
3. Soil Improvement:
   • Soil Adjustment: Applied in agriculture to adjust soil pH, improve soil structure, and enhance fertility.

Advantages

1. Effective Desulfurization:
   • High Reactivity: Limestone powder has good chemical reactivity and efficiently reacts with sulfur dioxide, providing effective desulfurization.
2. Cost-Effective:
   • Economic: Relatively low-cost compared to other desulfurization materials, making it suitable for large-scale use with good economic benefits.
3. Ease of Use:
   • Convenient Application: Simple to use and handle, can be directly applied in desulfurization systems, and is easy to store and transport.
4. Environmental Protection:
   • Pollution Reduction: Helps to reduce the formation of acid rain by removing sulfur dioxide from flue gases, improving air quality and contributing to environmental protection.