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Calcined Kaolin is produced by calcining (firing, sintering) kaolin clay or kaolinite rock (flint clay). Calcination is mainly carried out in rotary kilns, but also in shaft kilns, ring kilns and tunnel kilns. There are chamottes with different alumina contents and correspondingly different refractoriness. Depending on the chemical composition, different levels of corrosion and acid resistance are achieved. Fireclay can be supplied as a raw material in a fineness of 0 to 25 mm or 0 to 50 mm, but also in finished refractory grain sizes and finenesses.
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Calcined Kaolin is one of the oldest and most widely used refractory products. It is used as moulding sand in foundries and for acid-resistant bricks. It can also be used in the manufacture of paints or paper.
Diatomaceous Earth is a pale-colored, soft, lightweight sedimentary rock composed principally of silica microfossils of aquatic unicellular algae.
Calcined Flint Clay is a refractory raw material made from naturally occurring kaolin or clay slate. Calcination, i.e. heating at high temperatures, removes organic compone...
Reactive Alumina is a special raw material used in the manufacture of abrasives and abrasive products. It is characterized by its extreme hardness, high strength and abrasi...