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Mullitization kinetics from silica- and alumina-rich wastes

Mullite was produced from a mixture of raw wastes with high contents of silica and aluminium hydroxides. The first were wastes from slate rocks and had muscovite, chlorite and quartz as their main crystalline phases. The second were aluminium sludges resulting from the physico-chemical treatment of the wastewaters generated by aluminium surface treatment industries. As-received raw materials were weighed to pro...