FIELD: building industry; other industries; methods of production of the vesicular mica.
SUBSTANCE: the invention is pertaining to the treatment by splitting of the easily laminated micas, in particular, the vermiculite, the phlogopite and others. The technical result of the invention is the decreased bulk apparent density and the increased volume of the vesicular mica. The method of production of the vesicular mica includes the treatment of the initial mica with the hydrogen peroxide with the following thermal treatment. The treatment is conducted with the hydrogen peroxide having its concentration of 36-50 %. The produced mixture is aged till the mixture temperature drops to the room temperature, and the thermal treatment is conducted at 150-300°С with provision of the volumetric increase of the initial mica in 25-43 times.
EFFECT: the invention ensures the decreased bulk apparent density and the increased volume of the vesicular mica.
8 cl, 3 ex
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