CERAMIC MIXTURE FOR MAKING ACID-RESISTANT WARE Russian patent published in 2013 - IPC C04B33/138 C04B33/04 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of ceramic materials, primarily to compositions of mixtures for making acid-resistant ware. The result is achieved by adding aluminium-containing slag from production of chromium metal to crude kaolin-based ceramic mixtures, with the following ratio of components, wt %: crude kaolin 50-80, aluminium-containing slag from production of chromium metal with the content, wt %: 20-50, slag composition wt %: SlO₂ - 5.5; AlO₃ - 76.4; Fe₂O₃ - 1.35; CaO - 7.8; Cr₂O₃ - 7.3; R₂O - 1.3.

EFFECT: high frost resistance and heat resistance of acid-resistant ware.

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