第 52 卷第 5 期 | | Vol. 52 No. 5 | 2022 年 10 月 | Oct 2022 |
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所属栏目:功能材料
甲基烯丙醇绿色合成工艺的研究 |
赵炯烽1,金一丰1*,尹 红2,董 楠3
(1. 浙江皇马科技股份有限公司,浙江 上虞 312300;2. 浙江大学 化学工程与生物工程学院,浙江 杭州 310027;3. 浙江皇马尚宜新材料有限公司,浙江 上虞 312300) |
摘 要:以甲基烯丙基氯为原料,在高浓度醋酸钠存在下,经过酯化-水解法合成了甲基烯丙醇。以甲基烯丙醇的收率为指标,对反应条件进行了优化:在n(醋酸钠)∶n(甲基烯丙基氯)=7∶1、反应温度为110 ℃、反应体系pH为10.5、反应时间为5 h的优化条件下,甲基烯丙醇收率为88.7%。反应结束后,高浓度的醋酸钠使产物甲基烯丙醇更容易与水相分离,同时副产物氯化钠能自动结晶析出,且反应液中的水相可循环套用,从而显著提高了生产效率,并降低了生产能耗,适合工业化生产。 |
关键词:甲基烯丙基氯;醋酸钠;酯化-水解;甲基烯丙醇 |
中图分类号:TQ223.1 文献标识码:A 文章编号:1009-9212(2022)05-0081-04 |
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Green Synthesis of Methallyl Alcohol |
ZHAO Jiong-feng1, JIN Yi-feng1*, YIN Hong2, DONG Nan3
(1. Zhejiang Huangma Technology Co., Ltd., Shangyu 312300, China; 2. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; 3. Zhejiang Huangma Shangyi New-Material Co., Ltd., Shangyu 312300, China) |
Abstract:Using methallyl chloride as raw material, methallyl alcohol was synthesized by esterification-hydrolysis reaction in the presence of high concentration of sodium acetate. Taking the yield of methallyl alcohol as indicator, the reaction conditions were optimized as follows: the molar ratio of NaAc to methallyl chloride was 7∶1, the reaction temperature was 110 ℃, and the pH was 10.5. After 5 hours of reaction under these conditions, the yield of methallyl alcohol reached 88.7%. Because of the presence of high concentration of NaAc, methallyl alcohol was easier to separated and the by-product NaCl could automatically be precipitated out, at the same time the water phase containing high concentration of NaAc could be reused, thus significantly improved the production efficiency and reduced engergy consumption. The whole process is suitable for industrial production. |
Key words:methallyl chloride; sodium acetate; esterification-hydrolysis; methallyl alcohol |
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作者简介:赵炯烽(1988—),男,浙江绍兴人,博士,研究方向:表面活性剂的合成研究及产业化生产(E-mail:974435691@qq.com)。
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联 系 人:金一丰,教授级高级工程师,硕士,研究方向:表面活性剂及中间体的合成研究及工业化生产(E-mail:jyf-710@163.com)。
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收稿日期:2022-04-14
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