Quicklime Powder
Magnesium Oxide (MgO):≤ 5.0%
Acid Insoluble:≤ 2.0%
Fineness (Mesh):200 mesh
Corresponding Sieve Aperture:0.075 mm
Sieve Residue:≤ 5%
Activity (4N HCl, 10 min):≥ 360 ml
Appearance:White or light gray powder
Moisture Content:≤ 1%
High Purity and High Activity for Premium Applications
We offer Quicklime Powder. This product reflects our pursuit of "high purity" and "high activity." We use special high-grade, high-calcium limestone as the raw material. It is processed through high-temperature calcination and fine grinding.
Our factory operates 6 automated production lines with an annual capacity of 300,000 tons. Our R&D team consists of 9 senior engineers focused on improving product purity and activity. We are not just a supplier-we are a trusted expert in calcium oxide materials. Our Quicklime Powder is a premium-grade product.
Key Specifications and Superior Quality
We maintain strict quality control throughout the entire production process, ensuring stable chemical composition and excellent physical properties.
The table below presents our two high-purity grades. Both have an effective calcium content of ≥90%, which is higher than standard construction-grade lime.
The 200 mesh grade is a general-purpose high-efficiency product suitable for stirred reactor systems.
The 325 mesh grade is an ultra-fine, fast-dissolving type with a surface area approximately 40% larger, designed for rapid reaction applications such as dry desulfurization.
Our Quicklime Powder is designed for demanding industrial uses.
Technical Specifications
|
Parameter |
HL-90-200 |
HL-90-325 |
Test Standard |
Note |
|
Effective Calcium (CaO) |
≥ 90% |
≥ 90% |
GB/T 5762-2024 |
Core indicator, higher than standard construction lime |
|
Magnesium Oxide (MgO) |
≤ 5.0% |
≤ 5.0% |
GB/T 5762-2024 |
Meets calcium lime classification |
|
Acid Insoluble |
≤ 2.0% |
≤ 2.0% |
GB/T 5762-2024 |
Reflects product purity |
|
Fineness (Mesh) |
200 mesh |
325 mesh |
JC/T 479-2013 Appendix A |
Over 95% passing |
|
Corresponding Sieve Aperture |
0.075 mm |
0.045 mm |
GB/T 6003.1-2022 |
325 mesh suitable for precise injection |
|
Sieve Residue |
≤ 5% |
≤ 3% |
JC/T 479-2013 |
Ensures smooth conveying |
|
Activity (4N HCl, 10 min) |
≥ 360 ml |
≥ 380 ml |
YB/T 105-2014 |
Key indicator for metallurgy and desulfurization |
|
Appearance |
White or light gray powder |
White or light gray powder |
Visual inspection |
No lumps or visible impurities |
|
Moisture Content |
≤ 1% |
≤ 1% |
120°C drying method |
Ensures good flowability |
Key Features and Wide Applications
Our Quicklime Powder offers several outstanding advantages.
The high purity (≥90% effective calcium) allows for a 10–15% reduction in dosage compared with products containing 80–85% CaO.
This results in less waste and more efficient reactions.
Two fineness grades are available to meet different application requirements. The low impurity content (acid insoluble ≤2%) reduces slag formation in metallurgical processes and minimizes side reactions in chemical synthesis.
Our Quicklime Powder is widely used in environmental treatment, metallurgy, chemical processing, building materials, and agriculture.

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