绿色合成法制备乙酸乙酯

以硫酸氢钠为催化剂,以乙酸和乙醇为原料合成了乙酸乙酯,讨论了相关影响因素。确定了最适宜的反应条件:酸醇物质的量比为1.5:1;催化剂取1.0g/0.2mol乙醇;反应时间是1.5h。在此最佳反应条件下,产品收率达到80.6%。此外,催化剂硫酸氢钠能够重复使用若干次。与传统的制备方法相比,本方法遵循发展循环经济的指导方针,既达到了节能减排与清洁生产的目的,同时又提高了产品收率。

A Green Method for Synthesis of Ethyl Acetate

With acetic acid and ethanol, ethyl acetate was synthesized at the use of the catalyst sodium bisulfate, and related factors were discussed. Through a series of experimental studies the optimum conditions were determined： the acetic acid - alcohol ratio was 1.5 ： 1,the amount of catalyst was 1.0g/0.2mol ethanol,reaction time was 1.5h. In optimum conditions, the yield of product could reach 80.6%. In addition, sodium bisulfate catalyst could be reused several times. Compared with the traditional process, the new synthesis process not only results in the energy saving, emissions reducing and clean production, but also makes the yield of the product increased under the guidance of the policy for the development of circular economy.