固体酸碱性质对丙酮缩合生成异佛尔酮反应的影响  

Effect of solid base properties on acetone condensation to isophorone over Mg-Al-O catalyst

作　　者：谢丽莎[1] 陈霄榕[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《化工进展》2010年第7期1230-1234,1240,共6页Chemical Industry and Engineering Progress

摘　　要：采用共沉淀法制备镁铝酸碱复合氧化物催化剂,考察了固体酸碱性质对丙酮缩合生成异佛尔酮反应的影响。利用CO2和NH3程序升温脱附法对催化剂的酸碱性进行了表征,结果表明镁铝酸碱复合氧化物具有弱酸和弱碱中心,催化活性测试结果表明催化剂表面酸量约为0.21mmol/g,碱量约为0.015mmol/g时催化剂表现较好的活性。A series of Mg-Al acid-base compounds were prepared by coprecipitation method,and the effects of solid base and acid properties on the catalytic performance were studied.CO2-TPD and NH3-TPD results showed that the prepared Mg-Al compounds have both were weak acid and weak basic sites.The catalyst exhibited the best activity for acetone condensation to isophorone when the acid amount was 0.21 mmol/g and the basic amount was 0.015 mmol/g.

关 键 词：异佛尔酮 丙酮 共沉淀法 镁铝酸碱复合氧化物 固体酸碱性质 

分 类 号：O622.4[理学—有机化学]