| S_2O_8~(2-)/ZrO_2-SiO_2固体酸催化剂的制备及催化合成柠檬酸三丁酯 |
| |
| 引用本文： | 金瑞娣,吴东辉,贾雪平,施新宇.S_2O_8~(2-)/ZrO_2-SiO_2固体酸催化剂的制备及催化合成柠檬酸三丁酯[J].应用化工,2005,34(1):32-35. |
| |
| 作者姓名： | 金瑞娣 吴东辉 贾雪平 施新宇 |
| |
| 作者单位： | 南通大学,化学化工学院,江苏,南通,226007 |
| |
| 摘 要： | 采用共沉淀法制备S2O82-/ZrO2 SiO2固体酸催化剂,并用于柠檬酸三丁酯的合成反应,考察了制备条件对催化剂活性的影响,并对催化剂的稳定性进行分析。实验表明:当n(Zr)∶n(Si)=1∶13(摩尔比)时,用0.5mol/L的过硫酸铵溶液浸渍2h,550℃焙烧3h,催化剂用量为0.75g时,柠檬酸的转化率可达97.3%。且催化剂具有较高的稳定性,可重复使用5次以上。
|
| 关 键 词： | 固体酸S2O82-/ZrO2SiO2 催化 酯化 |
| 文章编号： | 1671-3206(2005)01-0032-04 |
| 修稿时间： | 2004年9月2日 |
Preparation of catalyst of solid acid S2O82-/ZrO2-SiO2 and catalytic synthesis of tributyl citrate |
| |
| JIN Rui-di,WU Dong-hui,JIA Xue-ping,SHI Xin-yu.Preparation of catalyst of solid acid S2O82-/ZrO2-SiO2 and catalytic synthesis of tributyl citrate[J].Applied chemical industry,2005,34(1):32-35. |
| |
| Authors: | JIN Rui-di WU Dong-hui JIA Xue-ping SHI Xin-yu |
| |
| Abstract: | Synthesis of tributyl citrate with S_2O_8~(2-) /ZrO_2-SiO_2 solid acid as catalyst which was prepared by co-precipitation,the effects of prepared conditions on catalytic activity were investigated and analysed the stability of the catalyst. The experiment shows that: When mole ratio of iron to silicon is 1∶13 ,impregenating 2 h with 0.5 mol/L (NH_4)_2S_2O_8,calcinate 3 h at 550℃, the weight of catalyst is 0.75 g,the conversion yield of the citric acid can reach 97.3%, and catalyst has high stability, it may reused 5 times. |
| |
| Keywords: | solid acid S_2O_8~(2-)/ZrO_2-SiO_2 catalysis esterification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
