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首页> 外文会议>International Conference on Mechatronics, Electronic, Industrial and Control Engineering >P-toluene Sulfonic Acid Catalyst in Synthesis of Ethylene Glycol Butyl Ether Acetate
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P-toluene Sulfonic Acid Catalyst in Synthesis of Ethylene Glycol Butyl Ether Acetate

机译：对甲苯磺酸合成乙二醇丁醚乙酸乙酯的甲苯磺酸催化剂

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Ethylene glycol butyl ether and acetic acid as raw materials, cyclohexane as dehydrant, by direct esterification method, under p-toluene sulfonic acid catalyst, the catalytic synthesis of ethylene glycol butyl ether acetate(EGBEA). In the single factor experiment examines the usage of the influence of the reaction, and through the orthogonal experiment of catalyst, material ratio, reaction time is discussed such as the influence of factors on the reaction. Using infrared spectroscopy, the products were characterized. Results show that when the ethylene glycol butyl ether is 11.817 g, acetic acid is 7.806 g, P-toluene sulfonic acid catalyst is 3%, cyclohexane as 23.340 g, Keep the return rate 2 ～3 d/s, speed 3 ～4 r/s, reflux temperature 80 ～95°C. Constantly in the process of reaction 60 minutes (reaction zone was born into the water), atmospheric distillation cyclohexane, before the rectification products, collection of 191 ～ 193°C fractions. Vested colorless transparent EGBEA, the yield is 98.81%. The bullishness of chromatographic analysis is more than 99% purity.
机译：乙二醇丁醚和乙酸作为原料，环己烷作为脱水剂，通过直接酯化方法，在对甲苯磺酸催化剂下，催化合成乙二醇丁基醚乙酸酯（EGBEA）。在单一因素实验中，研究了反应的影响，并通过催化剂的正交试验，讨论了材料比，反应时间，例如因子对反应的影响。使用红外光谱，其特征在于。结果表明，当乙二醇丁醚为11.817g时，乙酸为7.806g，对甲苯磺酸催化剂为3％，环己烷为23.340克，保持返回率2〜3 d / s，速度3〜4 r / s，回流温度80〜95°C。在反应过程中持续60分钟（反应区出生在水中），大气蒸馏环己烷，在整流产物之前，收集191〜193℃。归属无色透明的EGBEA，产量为98.81％。色谱分析的看涨性纯度超过99％。

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