Heavy calcium carbonate and active calcium carbonate have several differences: 1. **Production Process**: Heavy calcium carbonate is produced by crushing and grinding natural limestone, while active calcium carbonate is produced through a process that involves calcination and hydration, making it more reactive. 2. **Chemical Composition**: Both are primarily composed of calcium carbonate (CaCO3), but active calcium carbonate has a higher surface area and is often treated to enhance its reactivity. 3. **Applications**: Heavy calcium carbonate is commonly used as a filler in products like plastics, rubber, and paints, while active calcium carbonate is used in applications that require higher reactivity, such as in the production of calcium oxide or in certain chemical processes. 4. **Physical Properties**: Heavy calcium carbonate tends to have a larger particle size and is denser, whereas active calcium carbonate has finer particles and a higher specific surface area, which contributes to its reactivity. 5. **Cost**: Generally, active calcium carbonate is more expensive to produce due to the additional processing steps involved.
Both heavy calcium carbonate and active calcium carbonate have wide applications in industry. So how can we distinguish between heavy calcium carbonate and active calcium carbonate? What are their differences? Heavy calcium carbonate, abbreviated as heavy calcium, is produced by directly grinding the ore using machines. No additives are added; it is simply ground by machines. Therefore, it is called heavy calcium carbonate.
Both heavy calcium carbonate and active calcium carbonate have wide applications in industry. So how do we distinguish between heavy calcium carbonate and active calcium carbonate? What are their differences?
Heavy calcium carbonate, referred to as heavy calcium, is produced by directly grinding ore with machines. No additives are added; it is made solely through direct grinding by machines. Therefore, it is called heavy calcium carbonate.
Active calcium carbonate, also known as modified calcium carbonate, is produced by adding activators (such as fatty acids) during the production process of calcium carbonate for surface activation treatment.
The differences between active calcium carbonate and heavy calcium carbonate can be summarized in the following two points:
1. Active calcium carbonate is oleophilic and hydrophobic.
2. Ordinary calcium carbonate is hydrophilic and oleophobic.
3. The uses and methods of heavy calcium carbonate and active calcium carbonate are significantly different.
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