Kaolin (Al₂O₃·2SiO₂·2H₂O) contains about 39% alumina by weight. This makes it a viable raw material for producing high-purity alumina (HPA), which is alumina with purity above 99.99% and is used in LED sapphire substrates, lithium battery separator coatings, and semiconductor components. Several process routes can convert kaolin into HPA. Each route involves different equipment for […]
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Calcium carbonate is the workhorse filler in two of the biggest products in building materials: wall putty powder and dry-mix mortar. In both, it is the ingredient that decides cost, surface finish, and how easily the mix spreads and sticks. The difference between a good batch and a complaint is rarely the mineral itself. It
Calcium carbonate is the most widely used mineral filler in PVC wire and cable compounds. It appears in both insulation and sheathing, where it cuts material cost, improves dimensional stability, and adds flame retardancy. The main choice for a compounder is simple: use uncoated calcium carbonate, or pay a little more for a coated, surface-treated
Coated vs Uncoated Calcium Carbonate: Which Is Better in Cable? Read More »
A biodegradable film can fail from a single coarse calcium carbonate particle. That is why two powders with the same D50 can perform completely differently in a PLA or PBAT film line. Calcium carbonate is the filler most degradable packaging makers reach for first, and for a simple reason: it cuts cost without breaking the
Introduction Calcium carbonate (CaCO?) is the most widely used mineral filler in the rubber industry. Few materials match its combination of low cost, brightness, chemical inertness, and ease of handling. Formulators use it in tires, shoe soles, conveyor belts, hoses, and gaskets to control cost, adjust hardness, and hold tight dimensional tolerances. Calcium carbonate is
For ultrafine grinding of non-metallic minerals, three equipment systems are most commonly used: the Ball Mill + Air Classifier production line, the Vertical Roller Mill (VRM), and the Air Classifier Mill (ACM). Each has its own grinding mechanism, application range, and cost structure. Choosing the wrong system can lead to high energy bills, inconsistent product quality, or unnecessary capital expense. This article
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Calcium carbonate is one of the most widely used mineral fillers in the coatings industry, valued for its low cost, abundance, and versatility. Available in several forms — Ground Calcium Carbonate (GCC), Precipitated Calcium Carbonate (PCC), and increasingly ultrafine and nano calcium carbonate — it serves double duty in architectural paints, industrial coatings, and anti-corrosion systems by simultaneously improving
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Calcium carbonate (CaCO₃) is one of the most versatile and cost-effective fillers in the world. From PVC pipes to silicone sealants and interior paints, it adds bulk, improves mechanical properties, and reduces formulation costs. But how to use it effectively? The key lies in matching the right type of calcium carbonate to your specific application.
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Limestone is a carbonate rock composed primarily of calcite (CaCO₃). It serves as a fundamental raw material for cement and construction aggregates, as well as a core raw material for new calcium-based materials such as calcium oxide (quicklime), calcium hydroxide (slaked lime), lightweight calcium carbonate (PCC), and nano-calcium carbonate. However, the grade of limestone varies
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In the carbonation process of light calcium carbonate (PCC), crystal nucleation and particle collision aggregation are constrained by reaction kinetics and medium conditions, often resulting in oversized particles, wide distribution, and severe agglomeration—issues that significantly limit the application of PCC in high-value industries.This article presents two effective methods—ultrasonic dispersion technology and surfactant modification. They have
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