[1]蒋卫华,崔爱军,杨广花,等.树脂D732负载磷钨酸催化合成水杨酸正丁酯[J].常州大学学报(自然科学版),2015,(01):62-65.[doi:10.3969/ j.issn.2095-0411.2015.01.012]
　JIANG Wei-hua,CUI Ai-jun,YANG Guang-hua,et al.Catalytic Synthesis of Butyl Salicylate by Phosphotungstic Acid Supported on Resin D732[J].Journal of Changzhou University(Natural Science Edition),2015,(01):62-65.[doi:10.3969/ j.issn.2095-0411.2015.01.012]
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树脂D732负载磷钨酸催化合成水杨酸正丁酯()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年01期
页码:
62-65
栏目:
化学化工
出版日期:
2015-01-25

文章信息/Info

Title:
Catalytic Synthesis of Butyl Salicylate by Phosphotungstic Acid Supported on Resin D732
作者:
蒋卫华; 崔爱军; 杨广花; 罗士平
常州大学 石油化工学院,江苏 常州 213164
Author(s):
JIANG Wei-hua; CUI Ai-jun; YANG Guang-hua; LUO Shi-ping
School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China
关键词:
水杨酸;  正丁醇;  水杨酸正丁酯;  树脂D732;  磷钨酸
Keywords:
salicylic acid;  n-butanol;  butyl salicylate;  resin D732;  phosphotungstic acid
分类号:
TQ 032.4; O 621.3
DOI:
10.3969/ j.issn.2095-0411.2015.01.012
文献标志码:
A
摘要:
以水杨酸和正丁醇为原料,采用树脂D732负载磷钨酸为催化剂,合成了水杨酸正丁酯。考察了醇酸物质的量比、反应时间和反应温度、催化剂的用量和催化剂的重复使用性对酯化率的影响。结果表明:在反应温度为110 ℃,反应时间3 h,酸醇物质的量比为1:3,催化剂的质量占水杨酸质量的20%的较优条件下,酯化率高达93.2%。催化剂不经处理重复使用4次,酯化率都在83%以上,结果表明树脂D732负载磷钨酸的催化效果良好。
Abstract:
The synthesis of butyl salicylate catalyzed by phosphotungstic acid supported on resin D732 was studied with salicylic acid and n-butyl alcohol as beginning materials. The factors affecting the reaction yields, such as the reactants ratios, reaction time, reaction temperature, the amount of catalyst, and the reusability of catalyst were investigated. The results showed that the optimized conditions were as follows: the reaction temperature was 110 ℃, the reaction time was 3 hours, the mole ratio of acid to alcohol was 1:3, and the catalyst dosage was 20%(based on total mass of salicylic acid). Underthe optimum conditions, the percentage of esterification achieves 93.2%. And the yield was over 83% after the catalyst was used 4 times without any treatment.It was shown that the catalyst of phosphotungstic acid supported on resin D732has good catalytic effect.

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备注/Memo

备注/Memo:
作者简介:蒋卫华(1975-),男,江苏海安人,实验师。
更新日期/Last Update: 2015-01-25