FIRE-RESISTANT LINING FOR TITANIUM ORE DRESSING Russian patent published in 2015 - IPC F27D1/16 C21B13/08 C22B34/12 

FIELD: chemistry.

SUBSTANCE: invention relates to layered fire-resistant furnace lining, used in the process of titanium ore dressing with formation of enriched with titanium oxide and iron oxide liquid slag, to degradation-resistant substance in presence of enriched with titanium oxide and iron oxide liquid slag, to method of obtaining thereof, and to preliminarily formed layered fire-resistant lining. Layered fire-resistant lining contains first layer, which contains alumina and zirconium dioxide, including approximately 90-99 wt % of alumina and approximately 1-10 wt % of zirconium dioxide of the total weight of the first layer, and the second layer, containing degradation-resistant substance in presence of enriched with titanium oxide and iron oxide liquid slag. The second layer is located between slag and the first layer, and the total content of calcium oxide, magnesium oxide, yttrium oxide and cerium oxide constitutes less than 1 wt % of the total weight of the fire-resistant mass.

EFFECT: improvement of lining properties.

11 cl, 6 dwg, 4 ex