【摘 要】
：
以改性D001型阳离子交换树脂为催化剂,以乙酸和正丁醇为原料,在浆态鼓泡床多相反应器反应回流条件下催化酯化反应制备乙酸正丁酯,研究了反应器的技术优势及催化剂的特性和催
【机 构】
：
燕山大学环境与化学工程学院,河北省应用化学重点实验室,
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以改性D001型阳离子交换树脂为催化剂,以乙酸和正丁醇为原料,在浆态鼓泡床多相反应器反应回流条件下催化酯化反应制备乙酸正丁酯,研究了反应器的技术优势及催化剂的特性和催化剂类型、用量对酯化反应的影响及其使用寿命.结果表明,最佳反应条件为:正丁醇:乙酸=1.2:1(摩尔比),催化剂用量占乙酸量的40%(ω),反应温度110℃,反应时间75 min,该条件下乙酸正丁酯产率达98%以上,纯度达99.5%,催化剂经洗涤活化、再生,可重复使用6次.
Using modified D001 type cation exchange resin as catalyst and acetic acid and n-butanol as raw materials, esterification reaction was carried out to prepare n-butyl acetate under the condition of slurry bubbling bed multi-phase reaction refluxing. The technical advantages of the reactor The results showed that the optimum reaction conditions were as follows: n-butanol: acetic acid = 1.2: 1 (molar ratio), the amount of catalyst accounted for 40% of the amount of acetic acid The reaction temperature was 110 ℃ and the reaction time was 75 min. The yield of n-butyl acetate was above 98% and the purity was 99.5% under the above conditions. The catalyst was activated by washing, regenerated and reused 6 times.
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