Grinding Aid For Calcium Carbonate

A grinding aid for calcium carbonate enhances the grinding process, improving energy efficiency and achieving finer particle sizes. These additives reduce the material's surface energy and the forces of agglomeration, allowing better dispersion and a smoother grinding process.


 

Grinding Aids for Calcium Carbonate

 

Polycarboxylate Ethers (PCEs):

• Widely used in modern grinding operations.
• Improves dispersion and stabilizes particle sizes.
• Reduces viscosity in wet grinding systems.

 

Alcohol-based Additives:

• Glycols (e.g., ethylene glycol, diethylene glycol).
• Effective in dry and wet grinding applications.
• Reduces agglomeration and aids in finer particle size.

 

Amine-based Compounds:

• Monoethanolamine (MEA) or Triethanolamine (TEA).
• Useful for achieving ultra-fine calcium carbonate particles.
• Enhances grinding efficiency by reducing material stickiness.

 

Fatty Acids:

• Stearic acid and its salts (e.g., calcium stearate).
• Provides surface modification for calcium carbonate.
• Improves hydrophobicity in end-use applications like plastics and coatings.

 

Polymeric Dispersants:

• Helps in stabilizing particle dispersion.
• Ideal for high-solid slurry systems in wet grinding processes.

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Benefits of Using Grinding Aids

1. 1. Increased Productivity: Higher throughput rates by reducing grinding time.
2. 2. Energy Savings: Reduced power consumption during the grinding process.
3. 3. Improved Particle Distribution: More uniform and finer particle sizes.
4. 4. Reduced Equipment Wear: Lowered impact on grinding mill components.

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Application of Grinding Aids

Grinding aids are typically added in low concentrations (0.01–0.2% by weight of the material) during the grinding process. The selection depends on the grinding system (wet or dry), desired fineness, and downstream applications (e.g., paints, plastics, or paper).
 
The following takes ground calcium carbonate as an example. The applications of ground calcium carbonate (GCC) vary depending on its particle size and surface treatment.
 

Application	Particle Size	Surface Treatment	Benefits	Typical Grinding Aid
Plastics (Filler and Modifier)	Ultrafine (<5 µm, often D50 = 2–3 µm)	Stearic acid coating for hydrophobicity	Enhances rigidity and dimensional stability. Reduces costs by replacing expensive resins. Improves thermal conductivity and surface finish.	Fatty acids (e.g., stearic acid, calcium stearate) to improve compatibility with polymers.
Paints and Coatings	Fine to ultrafine (D50 = 1–5 µm)	Treated for better dispersion in liquid systems	1.Acts as an extender to improve brightness and opacity. 2. Provides smooth surface texture and enhances durability.	1.Polycarboxylate dispersants for better wetting and dispersion. 2.Amines to maintain grindability in dry processes.
Paper Industry	Medium to ultrafine (D50 = 2–10 µm).	Uncoated or lightly coated.	Improves paper brightness and opacity. Reduces production costs as a filler material. Enhances printing properties and smoothness.	Glycols or alcohol-based additives for smooth grinding.
Rubber Industry	Fine (D50 = 5–10 µm).	Hydrophobic surface for better compatibility.	Improves mechanical properties like tensile strength and elongation. Acts as a cost-efficient filler.	Stearic acid derivatives for rubber compatibility.
Adhesives and Sealants	Fine (D50 = 5–10 µm).	Hydrophobic coating.	Increases viscosity and rheology control. Enhances gap-filling properties and reduces shrinkage.	Fatty acids for improved dispersion.
Construction Materials (Cement, Mortar, and Concrete)	Coarser to medium (10–45 µm).	Typically untreated.	Acts as a filler for strength and durability enhancement. Improves workability and reduces water demand.	Amines or glycols for improved grinding efficiency and reduced energy use.
Pharmaceuticals and Food	Ultrafine (<2 µm).	Highly pure, untreated.	Used as a calcium supplement or excipient. Improves product stability.	Non-toxic additives like glycerin or food-grade dispersants.
Environmental Applications (Water Treatment, Flue Gas Desulfurization)	Medium to coarse (10–50 µm).	Typically untreated.	Neutralizes acids and removes impurities in wastewater. Acts as a sorbent for sulfur dioxide in flue gas.	Basic dispersants for improved dispersion.

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CLIRIK Machinery-Calcium Carbonate Grinding Equipment Quality Supplier

CLIRIK offers a wide range of professional calcium carbonate grinding equipment designed to meet the varying needs of different industries.
Our main products include the PCC coarse powder mill, CLRM Raymond mill, HGM micro powder mill, and CLUM ultrafine vertical mill, each specifically engineered to achieve optimal performance for various fineness requirements and production capacities.
Whether you're looking to process large quantities of coarse calcium carbonate powder or fine powders in the 50-3000 mesh range, our machines are capable of delivering high precision and efficiency.
 

The PCC coarse powder mill is ideal for producing larger particle sizes, while the CLRM Raymond mill offers excellent efficiency for medium-fine grinding.
For ultra-fine applications, the HGM micro powder mill can produce extremely fine powders with particle sizes down to 1250 mesh, and the CLUM ultrafine vertical mill excels in producing ultra-fine powders with high throughput and low energy consumption.

Our equipment is known for its durability, energy efficiency, and low maintenance requirements, ensuring long-term productivity.
In addition, we offer high-performance grinding aids to further improve the grinding process, reduce energy consumption, and enhance the overall quality of the powder.
Whether you need equipment for industrial-scale production or laboratory-level testing, CLIRIK’s solutions are tailored to meet your specific needs.

We welcome you to contact us for a personalized consultation and get a competitive quote for calcium carbonate grinding equipment and grinding aids.
Let us help you optimize your production process and achieve the desired powder quality with our advanced technology.