| 硅钨酸催化合成防腐剂尼泊金辛酯的工艺及防腐性能研究 |
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| 引用本文： | 姚晓青,唐永,巩育军. 硅钨酸催化合成防腐剂尼泊金辛酯的工艺及防腐性能研究[J]. 广东化工, 2014, 0(3): 22-23,25 |
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| 作者姓名： | 姚晓青 唐永 巩育军 |
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| 作者单位： | [1] 广东石油化工学院化学与生命科学学院,广东茂名,525000 [2] 广东石油化工学院实验教学部,广东茂名,525000 |
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| 摘 要： | 文章以对羟基苯甲酸和辛醇为原料,以硅钨酸为催化剂,合成尼泊金辛酯。最佳反应条件为:催化剂用量为6%(相对于酸用量),醇酸比为3∶1,反应温度为120℃,反应时间为4 h。通过正交试验进一步优化,经方差分析,发现反应物料配比对转化率影响最大,优化后的条件合成得到尼泊金辛酯的转化率达90.62%。
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| 关 键 词： | 尼泊金辛酯 防腐剂 硅钨酸 |
Study on the Process and Corrosion Performance of Silicotungstic Acid Catalytic Synthesis of Ppreservative Nipagin Ester |
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| Yao Xiaoqing,Tang Yong,Gong Yujun. Study on the Process and Corrosion Performance of Silicotungstic Acid Catalytic Synthesis of Ppreservative Nipagin Ester[J]. Guangdong Chemical Industry, 2014, 0(3): 22-23,25 |
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| Authors: | Yao Xiaoqing Tang Yong Gong Yujun |
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| Affiliation: | 1 (1. Chemistry and Life Science College, Guang Dong University of Petrochemical Technology, Maoming 525000; 2. Department of Experiment Teaching, Guang Dong University of Petrochemical Technology, Maoming 525000, China) |
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| Abstract: | In the paper, p-hydroxybenzoic acid and octanol as raw materials, using silicotungstic acid as catalyst, synthesis of Nipagin ester. The optimum reaction conditions were as follows： amount of catalyst is 6 % （relative to the amount of acid）, molar ratio of 3 ： 1, reaction temperature 120 ℃, reaction time is 4 h. Further optimized through orthogonal test, variance analysis, found that reactant proportion the biggest impact on conversion rates, conditions for the synthesis of Nipagin ester optimized conversion rate of 90.62 %. |
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| Keywords: | octyl paraben： preservatives： silicotungstic acid |
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