Method for manufacture of sintered alumina from ammonium aluminum carbonate hydroxide

摘要

Aluminum carbonate hydroxide ammonium, a new compound, is produced by causing a solution of ammonium hydrogencarbonate to be reacted upon by a soluble aluminum salt. &agr;-Alumina is obtained by thermal decomposition of this ammonium aluminum carbonate hydroxide. By sintering said &agr;-alumina, there is obtained sintered &agr;-alumina.