石油化工2011，Vol.40Issue(2)：189-192,4.
凹凸棒黏土负载型固体酸催化合成乙酰水杨酸
Synthesis of Acetylsalicylic Acid over Attapulgite Supported Solid Acid Catalyst
摘要
Abstract
Attapulgite (ATP) supported H+ and AlCl3 solid acid catalysts (H+/ATP and AlCl3/ATP) were prepared and their catalytic activities for synthesis of acetylsalicylic acid (AA) from salicylic acid and acetic anhydride were compared with the free acids.The results suggested that the solid acid catalysts exhibited higher activity than those of the free acids, especially AlCl3/ATP catalyst.Under the optimum conditions of AlCl3/ATP catalyst mass fraction 5％ (based on salicylic acid), reaction temperature 80 ℃, reaction time 30 min and mole ratio of acetic anhydride to salicylic acid 2.0, the yield and the purity of AA reached 92.5％ and 99.5％ respectively.The synthesized AA was characterized by means of FTIR and 1H NMR.The AA yield still reached 89.2％ after it was regenerated and reused for 5 times.关键词
凹凸棒黏上/氯化铝/固体酸催化剂/乙酰水杨酸/水杨酸/乙酸酐分类
化学化工引用本文复制引用
吴洁,蒋金龙,钱晓敏..凹凸棒黏土负载型固体酸催化合成乙酰水杨酸[J].石油化工,2011,40(2):189-192,4.基金项目
江苏省科技厅工业支撑计划项目(BE2009098). （BE2009098）
