摘要
用固体超强酸ＴｉＯ２／ＳＯ２－４－沸石分子筛催化合成邻苯二甲酸二辛酯（ＤＯＰ）。对催化剂的制备条件和ＤＯＰ的合成条件进行了研究。在最佳反应条件下，酯化率可达９８％以上，研究还表明，此催化剂与单组份固体超强酸ＴｉＯ２／ＳＯ２－４相比，具有体积大、易过滤、产品中无催化剂残留、成本低、使用寿命长等优点，是合成ＤＯＰ的理想催化剂，还对沸石表面的吸附进行了Ｘ－射线衍射能谱测试，对ＤＯＰ进行了红外光谱测试验证。
his paper investigates the synthesis of DOP with zeolite supported TiO2/SO2-4 solid super acids as catalysts.The preparation conditions of the complex catalysts and esterification conditions were studied.Under the optimum synthesis condition,the esterification rates were over 98%.Compared with TiO2/SO2-4 solid super acid,the complex catalysts and DOP are easily separable without any catalyst residual left in DOP.Xray and IR methods were used for the characterization of zeolite/TiO2/SO2-4 and DOP.
出处
《石油化工》
CAS
CSCD
北大核心
1998年第6期399-402,429,共5页
Petrochemical Technology
基金
广东省高教厅重点学科资助
