摘要
制备了SO42-/ZrO2、SO42-/TiO2等一系列固体超强酸催化剂,并将催化剂用于以异丁苯和氯代丙酰氯为原料催化合成布洛芬中间体——对异丁基氯代苯丙酮,其中SO42-/ZrO2型固体超强酸的催化活性最高。引入一定量的氧化铝对SO42-/ZrO2固体超强酸进行改性,探讨了Al引入量的不同对催化剂活性的影响,并采用XRD、BET等方法对改性后的催化剂进行表征。结果表明,Al的引入不仅增加了催化剂的比表面积,而且使活性四方相ZrO2更加稳定。当Al摩尔掺杂量为4%时制得的SO42-/ZrO2-Al2O3催化剂活性最高,且具有较好的重复使用性。
A series of solid superacids such as sulfated zirconia and sulfated titania has been synthesized and used as catalysts for Friedel-Crafts acylation of isobutylbenzene,the results showed that among all the prepared samples the catalytic performance of sulfated zirconia was the best. The catalyst of sulfated zir-conia was modified by incorporating appropriate amounts of Al2 O3 and the effect of Al content on the per-formance of the catalysts has been investigated,meanwhile the catalysts were characterized by means of XRD and BET. The result showed that the incorporation of Al enhances the catalytic activities and prop-erties prominently owing to an increase of surface area and stability of active tetragonal zirconia. When Al doping 4% had the highest production rate and can be reused repeatedly.
出处
《应用化工》
CAS
CSCD
2014年第8期1365-1368,共4页
Applied Chemical Industry
基金
国家自然科学基金资助项目(21376128)
