采用不均匀沉淀法制备了二元组分Al1P1.3 0 ,三元组分Al1P1.3 0 Si0 .17,四元组分Al1P1.3 0 Ti0 .3 0 Si0 .17三个催化剂 ,并研究了邻苯二酚与乙醇在该催化剂上的气相O 乙基化反应 .结果表明 ,在Al1P1.3 0 Ti0 .3 0 Si0 .17催化剂上 ,邻苯二酚转化率和目的产物收率分别约为 94%和 84% ,并在反应 10 0h内保持活性不衰减 ,展示了良好的应用前景 The binary catalyst Al1P1.3 0, ternary component Al1P1.3 0 Si0.17 and quaternary component Al1P1.3 0 Ti0.30Si0.17 were prepared by non-uniform precipitation method. Gas phase O-ethylation of catechol with ethanol on the catalyst showed that the conversion of catechol and the yield of the target product were about 94% and 84%, respectively, and kept the activity unchanged for 10h, showing a good application prospect