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In abrasive production, the selection of raw materials such as calcined bauxite, silicon carbide and zirconia alumina is crucial in order to achieve excellent product quality. Hardness and heat resistance are essential qualities that a material must possess for the manufacture of grinding tools. CREMER ERZKONTOR offers a wide range of raw materials for the abrasives industry.
Brown Fused Alumina (BFA) is a very hard, tough abrasive raw material produced by melting bauxite (an aluminum ore) at extremely high temperatures. During the melting proce...
Calcined Bauxite is produced by the sintering/calcining of low-iron, low-alkali containing raw bauxites at temperatures of 1600 – 1800°C. In this calcination process the hi...
Calcined Kyanite is produced by calcination of Virginia Kyanite, an alumino silicate. Kyanite ore is crushed, the kyanite crystals are separated from other ore components a...
Chrome Oxide Green is an inorganic green pigment made from various chromium compounds by heating to approx. 800°C. It can be used in paints, inks and glasses. Due to its hi...
Diatomaceous Earth is a pale-colored, soft, lightweight sedimentary rock composed principally of silica microfossils of aquatic unicellular algae.
Raw Kyanite is an aluminosilicate mineral. After ore crushing the kyanite crystals are separated from other ore elements by heavy media separation and flotation. Concentrat...
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...
Silicon Carbide (SiC) is a crystalline solid characterized by extreme hardness, high temperature resistance and electrical conductivity. SiC is used in many technical appli...
Tabular Alumina is a re-crystalline sintered alpha alumina with high density. It consists of large (50 – 200 µm), flat, table-shaped corundum crystals.
White Fused Alumina (WFA) is a high-purity, white abrasive made from aluminum oxide. It is produced by melting high-quality alumina in an electric arc furnace at very high ...
Zircon Flour is a mineral powder obtained from zircon sand that is used in various industrial applications. It is characterized by its high hardness, abrasion resistance an...