| abstract |
PURPOSE: To efficiently obtain the title spherical compound having a narrow particle size distribution in the presence of a catalyst in a solventless state by adding metal magnesium and an alcohol in a specific final addition ratio to a reaction system under alcohol reflux, reacting for a specific time and then aging. n CONSTITUTION: In synthesizing a magnesium alcoholate by directly reacting (A) metal magnesium with (B) an alcohol shown by the formula ROH (R is 1-20C alkyl, cycloalkyl or aralkyl), preferably ethyl alcohol in the presence of a catalyst in a solventless state, the component A and the compound B in the final addition ratio of the component A/B (weight ratio)=1/9-15 are continuously or intermittently added to the reaction system under reflux of alcohol, reacted for 5-80 minutes and subjected to aging reaction under reflux of an alcohol to efficiently give the objective spherical compound having 10-50μm particle diameter and a narrow particle size distribution useful as a catalyst for α-olefin polymerization, a dehydrating agent and a desiccant for alcohols, etc., a ceramic raw material, etc. n COPYRIGHT: (C)1991,JPO&Japio |