Method of preparing manganese oxide octahedral molecular sieve

摘要

Manganese oxide octahedral molecular sieve (OMS) is produced by the method comprising a) forming an aqueous reaction medium containing manganese cation and permanganate anion, the reaction medium being maintained at a pH of not greater than 4.5; b) refluxing the aqueous reaction medium under conditions which are effective to produce solid crystalline manganese oxide octahedral molecular sieve product; and c) recovering the solid crystalline product. The method of this invention is carried out in an open system, i.e. a reflux condenser, and results in the formation of OMS which is thermally stable up to 600 DEG C.