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Facile Synthesis of a Highly Effective Layered Double Hydroxide Catalyst and Its Application in the One-Step Ethoxylation of Butyl Acetate to Oligo-Ethylene Glycol Butyl Ether Acetates
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-08-20 , DOI: 10.1021/acs.iecr.9b01892 Jinchang Zhang 1 , Tiechun Li 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-08-20 , DOI: 10.1021/acs.iecr.9b01892 Jinchang Zhang 1 , Tiechun Li 1
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A novel synthetic route for the one-step ethoxylation of butyl acetate to form oligo-ethylene glycol butyl ether acetates is explored by adopting an effective acid–base bifunctional catalyst in a fixed-bed reactor. The highly efficient hydrotalcite-type catalysts used are prepared by employing co-precipitation methods. After treatment with arachidic acid, the as-obtained catalyst gives higher butyl acetate conversion and better ethylene oxide catalytic activity with a narrower adduct distribution of ethylene glycol butyl ether acetate in a fixed-bed reactor. After the reaction for 72 h, the conversion of butyl acetate was over 10% and the selectivities for both 1-ethylene glycol butyl ether acetate and 2-ethylene glycol butyl ether acetate arrived at more than 40%.
中文翻译：
高效层状双氢氧化物催化剂的简便合成及其在乙酸丁酯一步法乙氧基化为低聚乙二醇丁醚乙酸酯中的应用
通过在固定床反应器中采用有效的酸碱双功能催化剂，探索了一种将乙酸丁酯一步乙氧基化形成低聚乙二醇丁醚乙酸酯的新颖合成途径。所用的高效水滑石型催化剂是通过采用共沉淀法制备的。用花生酸处理后，所得催化剂在固定床反应器中得到较高的乙酸丁酯转化率和较好的环氧乙烷催化活性，同时乙二醇丁醚乙酸酯的加合物分布较窄。反应72小时后，乙酸丁酯的转化率超过10％，并且1-乙二醇丁醚乙酸酯和2-乙二醇丁醚乙酸酯的选择性均超过40％。
更新日期：2019-08-20
中文翻译：
高效层状双氢氧化物催化剂的简便合成及其在乙酸丁酯一步法乙氧基化为低聚乙二醇丁醚乙酸酯中的应用
通过在固定床反应器中采用有效的酸碱双功能催化剂，探索了一种将乙酸丁酯一步乙氧基化形成低聚乙二醇丁醚乙酸酯的新颖合成途径。所用的高效水滑石型催化剂是通过采用共沉淀法制备的。用花生酸处理后，所得催化剂在固定床反应器中得到较高的乙酸丁酯转化率和较好的环氧乙烷催化活性，同时乙二醇丁醚乙酸酯的加合物分布较窄。反应72小时后，乙酸丁酯的转化率超过10％，并且1-乙二醇丁醚乙酸酯和2-乙二醇丁醚乙酸酯的选择性均超过40％。
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