METHOD OF PRODUCING ALUMINATE Russian patent published in 1998 - IPC

FIELD: inorganic substances technology. SUBSTANCE: starting components taken in stoichiometric proportion are subjected to mechanical activation and heat treatment. When these components are being prepared, their mixture is supplemented with seed of aluminate corresponding to that to be produced. Preliminary mechanical activation of the mixture is conducted in centrifugal planetary mill followed by heat treatment at 700-900 C, after which mechanical activation and subsequent heat treatment are repeated. Starting components are barium or lanthanum oxides and gamma-alumina. EFFECT: enhanced process efficiency. 6 cl, 1 tbl