| 强酸性离子交换树脂作为丙烯酸酯化反应催化剂的性能研究 |
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| 引用本文： | 梁鹏总,聂俊,何勇.强酸性离子交换树脂作为丙烯酸酯化反应催化剂的性能研究[J].信息记录材料,2009,10(5):29-33. |
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| 作者姓名： | 梁鹏总 聂俊 何勇 |
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| 作者单位： | 北京化工大学,北京市新型高分子材料制备与加工重点实验室,北京化工大学材料科学与工程学院,北京,100029 |
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| 摘 要： | 本文以丙烯酸、正辛醇为原料,强酸性离子交换树脂作为催化剂,催化酯化反应。考察了催化剂用量、种类、以及催化剂循环使用次数对酯化率的影响,并考察了催化剂的使用温度范围。结果表明,NKC-9型强酸性离子交换树脂具有良好的催化活性,在醇酸摩尔比为1.2∶1,催化剂用量为酸醇总质量的7%,105℃下回流分水5.0h的反应条件下,最高酯化率可达97.8%;并且该强酸性离子交换树脂的催化性能比较稳定,可以多次循环使用,重复使用10次时,其酯化率仍在90%以上,从而可实现易分离、可循环的目的。
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| 关 键 词： | 强酸性离子交换树脂 催化剂 酯化率 |
The Study on Catalytic Ability of Strong Acid Cation Exchange Resin in the Esterification of Acrylate |
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| LIANG Peng-zong,NIE Jun,HE Yong.The Study on Catalytic Ability of Strong Acid Cation Exchange Resin in the Esterification of Acrylate[J].Information Recording Materials,2009,10(5):29-33. |
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| Authors: | LIANG Peng-zong NIE Jun HE Yong |
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| Affiliation: | LIANG Peng-zong,NIE Jun,HE Yong (The Key Laboratory of Beijing City on Preparation , Processing of Novel Polymer Materials,Beijing University of Chemical Technology,College of Material Science , Engineering,Beijing 100029,China ) |
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| Abstract: | Catalytic ability of strong acid cation exchange resin for esterification reaction was investigated with acrylic acid and 1-octanol as model system. The kind and quantity of catalysts,reaction time,temperature and cycle times were investigated. The results show that NKC-9 strong acid cation exchange resin exhibited highest catalytic activity.When mole ratio of acrylic acid to 1-octanol was 1.2∶1,the efficiency of esterification could reach 97.8% after 5.0 hours reflux at 105℃ with 7%wt NKC-9 as catalyst.Besides,the NKC-9 type strong acid cation exchange resin show good stability,reusable,and the efficiency of esterification could still exceed 90% when 10 cycle times.These show that NKC-9 is the best candidate with good catalytic ability and easy separation and cycle property. |
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| Keywords: | strong acid cation exchange resin catalysis esterification |
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