| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst which is easily recovered and reused and, is especially useful for the manufacture of ether through the chemical reaction between an alcohol and an epoxy compound, with sufficient activity and reactive selectivity by exchanging the cation of a cationic exchange resin having a sulfonic group with aluminum. SOLUTION: The catalyst activity of the fixed acid catalyst is caused to occur by the position of a sulfonic acid in which the cation is exchanged by aluminum and in this case, the catalytic activity has nothing to do with the structure of the other anionic group or polymeric main chain. In addition, the fixed acid catalyst can be manufactured by treating a cation exchange resin having a sulfonic group in a water-soluble aluminum salt or an aluminate ester. For example, the catalyst can be manufactured by dissolving a water-soluble aluminum salt in water in which the cation exchange resin is dispersed and the mixture is thermally stirred and further, concentrated to be dried and water- washed. Thus no alcoholysis occurs even when an alcohol becomes a reaction substrate and especially the fixed acid catalyst is useful for ether synthesis by a chemical reaction between the alcohol and an epoxy compound. |
