Production and properties of refractory raw materials ...
2017-5-1 · raw material. Consequently, the develop-ment of mullite in commercial refractory has to be achieved by firing various alumino-sil-icates, with suitable chemical composition, involving clays, kaolin and various fine silica and alumina products. Among the alumino-silicate raw materi-als, andalusite is the best natural source of
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