METHOD OF CORUNDUM CERAMICS PRODUCING Russian patent published in 1997 - IPC

FIELD: ceramics, refractory materials. SUBSTANCE: method involves the use of the natural refractory bauxite for producing the charge of high-alumina corundum ceramics exhibiting decreased caking point - below 1500 C. Bauxite has the following composition, wt.-%: $$$, 69.4; $$$, 8.18; $$$, 3.42; $$$, 2.55; MgO, 1.10; MnO, 0.23; $$$, 0.30; $$$, 0.26; $$$, 0.54; $$$, 0.54; $$$, 0.40, and other doping improvers 13.02 that is mixed with fluoro-containing addition of the following molar composition: MgO : $$$ = 7:1 at mass ratio of bauxite and addition = 50:3. EFFECT: improved quality and property of material. 1 tbl