FIELD: chemical industry. SUBSTANCE: alumina trihydrate or low roasted alumina is used to manufacture material. Initial components are ground in grinding equipment with grinding bodies made of a-modification of alumina to form suspension, 1-5 wt% finely dispersed nucle; of a crystals are then added thereto dried and roasted at temperatures ranging from 1100 to 1500 C. Modifiers may be also added to the suspension and the suspension is vacuum treated, the pH value of the suspension being less than 5. The initial component is aluminium hydroxide which results from aluminium production by the Byer process. EFFECT: more efficient preparation process. 5 cl
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