| 固体酸SO_4~(2-)/TiO_2-Al_2O_3-SnO_2催化合成氯乙酸四甘醇双酯 |
| |
| 引用本文： | 牛梅菊,窦建民,贺媛.固体酸SO_4~(2-)/TiO_2-Al_2O_3-SnO_2催化合成氯乙酸四甘醇双酯[J].精细化工,2004,21(10):798-800. |
| |
| 作者姓名： | 牛梅菊 窦建民 贺媛 |
| |
| 作者单位： | 聊城大学化学化工学院，聊城大学化学化工学院，聊城大学化学化工学院 山东聊城 252059，山东聊城 252059，山东聊城 252059 |
| |
| 基金项目： | 山东省自然科学基金项目(Y2003D01)~~ |
| |
| 摘 要： | 以固体酸SO2-4/TiO2 Al2O3 SnO2为催化剂,氯乙酸和四甘醇为原料催化合成了氯乙酸四甘醇双酯。经实验确定的最佳反应条件为:n(氯乙酸).Mn(四甘醇)=2 5,催化剂和带水剂用量分别为反应物总质量的5%和10%,反应时间2 5h,醇的转化率达97 02%,产品收率为81 87%,产品质量分数>97%,催化剂重复使用10次,催化活性基本不变。
|
| 关 键 词： | 固体超强酸SO2-4/TiO2-Al2O3-SnO2 氯乙酸四甘醇双酯 酯化反应 |
Synthesis of Tetraglycol Bischloroacetate with Solid Super AcidSO_4~(2-)/TiO_2-Al_2O_3-SnO_2 as Catalyst |
| |
| NIU Mei-ju,DOU Jian-min,HE Yuan.Synthesis of Tetraglycol Bischloroacetate with Solid Super AcidSO_4~(2-)/TiO_2-Al_2O_3-SnO_2 as Catalyst[J].Fine Chemicals,2004,21(10):798-800. |
| |
| Authors: | NIU Mei-ju DOU Jian-min HE Yuan |
| |
| Abstract: | Tetraglycol bischloroacetate were synthesized from chloroacetic acid and tetraglycol with solid super acid SO~(2-)_4/TiO_2-Al_2O_3-SnO_2 as catalyst.The optimum reaction conditions were found as follows:n(chloroaceticacid)/n(tetraglycol)=2.5,w(benzene)=10%,w(SO~(2-)_4/TiO_2-Al_2O_3-SnO_2)=5% and refluxing time 2.5 h.Conversion of tetraglycol was 97.02%,yield of the diester was 81.87% and the purity was over 97%.Activity of catalyst does not change after repeated use for ten times. |
| |
| Keywords: | solid super acid SO~(2-)_4/TiO_2-Al_2O_3-SnO_2 tetraglycol bischloroacetate esterification |
| 本文献已被 CNKI 等数据库收录！ |
