| 固体超强酸SO42-/TiO2-Al2O3-SnO2催化合成DBS |
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| 引用本文： | 牛梅菊,高太明,尹汉东. 固体超强酸SO42-/TiO2-Al2O3-SnO2催化合成DBS[J]. 塑料工业, 2004, 32(11): 11-12,48 |
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| 作者姓名： | 牛梅菊 高太明 尹汉东 |
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| 作者单位： | 聊城大学,山东,聊城,252059 |
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| 基金项目： | 聊城大学科研基金资助项目 (X0 3 10 13 ) |
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| 摘 要： | 以固体超强酸SO4^2-／TiO2-Al2O3-SnO2为催化剂、葵二酸和正丁醇为原料合成了癸二酸二丁酯(DBS)。研究了反应时间、醇酸物质的量比、催化剂用量等对酯化率的影响。结果表明：最佳反应条件为以0.05mol葵二酸为基准，n(酸)：n(醇)=1：4，催化剂0．5g，反应时间3．5h，此时酯化率达97．5％，产品质量分数大于98％；催化剂重复使用6次后，催化活性基本不变。
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| 关 键 词： | 固体超强酸SO4^2-／TiO2-Al2O3-SnO2 催化剂 葵二酸 正丁醇 合成 癸二酸二丁酯 硫酸根 氧化钛 氧化锡 |
Synthesis of Dibutyl Sebacate with Sold Superacid SO42-/TiO2-Al2O3-SnO2 as Catalyst |
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| NIU Mei-ju,GAO Tai-ming,YIN Han-dong. Synthesis of Dibutyl Sebacate with Sold Superacid SO42-/TiO2-Al2O3-SnO2 as Catalyst[J]. China Plastics Industry, 2004, 32(11): 11-12,48 |
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| Authors: | NIU Mei-ju GAO Tai-ming YIN Han-dong |
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| Abstract: | Dibutyl sebacate was synthesized from sebacic acid and n-butanol with SO 4 2- /TiO 2-Al 2O 3-SnO 2 as catalyst. The effects of reaction time, the molar ratio of alcohol to acid, and the content of catalyst on the synthesis were studied. The optimum reaction conditions were that based on 0.05 mol sebacic acid, n ( n-butanol): n (sebacic acid )=4, the content of SO 4 2- /TiO 2-Al 2O 3-SnO 2 was 0.5 g and the reaction time was 3.5 h. Under the optimum condition, the conversion of sebacic acid was 97.5%, the purity was over 98% , the activity of the catalyst changed little after 6 times of reuse. |
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| Keywords: | Solid Superacid SO4 2- /TiO2-Al 2O 3-SnO 2 Dibutyl Sebacate Catalyst Synthesis |
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