CERAMIC MIXTURE Russian patent published in 2014 - IPC C04B33/13 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions of ceramic mixtures (stoneware) which can be used in making articles for decorative, art and general purposes. The ceramic mixture contains the following, wt %: plastic clay 61.0-61.5; kaolin 14.0-16.0; ground expanded pearlite 6.0-8.0; quartz sand 10.0-12.0; wollastonite 4.0-6.0; silica gel 0.5-1.0. Articles moulded in gypsum moulds are dried to moisture content of 1-7% and then fired at 1130-1170°C. Glaze is then applied on the surface of the articles and the articles are fired for the second time at 850-900°C.

EFFECT: low firing temperature of articles made from the ceramic mixture.

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