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Zircon Sand is a heat-resistant mould base material consisting mainly of the heavy mineral zirconium silicate. It comes from natural sand deposits.
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Foundry sand; castables; refractory bricks; refractory masses
During sintering (firing) at temperatures of 1750 – 2000 C° in shaft or rotary kilns naturally occurring magnesium carbonate is converted into sintered magnesia, directly (...
Natural graphite is crystalline carbon in flake form in metamorphous rocks. Graphite has a high refractoriness and excellent electrical and thermal conductivity. The main a...
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...