METHOD OF PRODUCING MULLITE Russian patent published in 2012 - IPC C04B35/185 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering and material science and can be used to produce mullite-based ceramic materials. The method of producing mullite involves mixing a natural aluminosilicate compound and an aluminium-containing compound, mechanical activation of the obtained mixture, which involves treatment of the mixture in a flow-type centrifugal mill with a mechanical load of grinding bodies which corresponds to acceleration of not less than 20 g, followed by heat treatment. The natural aluminosilicate material used is aluminosilicate of the formula Al₂O₃·SiO₂, and the aluminium-containing compound is technical alumina, with the following ratio of components in wt %: natural aluminosilicate Al₂O₃·SiO₂ -62-72; technical alumina - the balance.

EFFECT: low consumption of alumina and synthesis temperature.

2 cl, 3 ex, 1 tbl