| 催化合成2,4-二氯苯氧乙酸正丁酯的研究 |
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| 引用本文： | 庞仕巍,王春梅,赵晓宇,等.催化合成2,4-二氯苯氧乙酸正丁酯的研究[J].黑龙江农业科学,2014(5):70-72. |
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| 作者姓名： | 庞仕巍 王春梅 赵晓宇 等 |
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| 作者单位： | 哈尔滨利民农化技术有限公司,黑龙江哈尔滨150025 |
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| 摘 要： | 为探索2,4-二氯苯氧乙酸正丁酯酯化反应的最佳提取条件,以固体超强酸(SO2-4/SnO2)作为催化剂,研究了催化剂用量、反应温度及醇酸比对2,4-二氯苯氧乙酸正丁酯酯化反应的影响。结果表明:以固体超强酸(SO2-4/SnO2)作为催化剂活性最高,其酯化反应最佳合成工艺条件为A2B2C2,即催化剂用量0.6%、酯化反应温度110℃、正丁醇与2,4-二氯苯氧乙酸摩尔比2∶1,2,4-二氯苯氧乙酸的转化率达99.87%。
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| 关 键 词： | -二氯苯氧乙酸正丁酯 酯化反应 催化合成 |
Study on Catalytic Synthesis of 2,4-Dichlorophenoxyacetie Aeid N-Butyl |
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| PANG Shi-wei,WANG Chun-mei,ZHAO Xiao-yu,ZHANG Hong-jie.Study on Catalytic Synthesis of 2,4-Dichlorophenoxyacetie Aeid N-Butyl[J].Heilongjiang Agricultural Science,2014(5):70-72. |
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| Authors: | PANG Shi-wei WANG Chun-mei ZHAO Xiao-yu ZHANG Hong-jie |
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| Institution: | (Limin Agroehemical Technology Company Limited, Harbin, Heilongjiang 150025) |
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| Abstract: | In order to explore best extraction conditions of 2,4-D butylate esterification, taking solid super acid as catalyst,the effects of temperature, catalyst, ratio of alcohol to acid on 2,4-D butylate esterification were studied. The results showed that： the optimum reaction conditions of esterification was A2 B2C2, that＇s the amount of catalyst was 0.6 %, reaction temperature was 110℃ and the molar ration of alcohol and acid was 2 ： 1, the conversion rate of 2,4-dichlorphenoxyacetic acid reached 99.87 %. |
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| Keywords: | 2 4-dichlorephenexyacetic acid n-butyl esterification catalytic synthesis |
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