制备了稀土固体超强酸SO2-4/TiO2/La3+，研究了以其为催化剂，癸二酸和无水乙醇为原料合成癸二酸二乙酯，并考察了影响反应的因素。结果表明，它是一种良好的酯化催化剂。
The rare-earth solid superacid SO2-4/TiO2/La3+ was prepared. Thesynthesis of diethyl sebacate has been studied using ethanol absolute and sebacic acid as reactants, and rare-earth solid superacid SO2-4/TiO2/La3+as catalyst. The influence factors of reaction were investigated. The results show that it is a good catalyst for esterifications.
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