正交法设计乙酸甲酯制备的教学实验
Orthogonal design for teaching experiment of methyl acetate synthesis
莫琰 1姚添壹 2许怡璇 1史津赫 2陈彤彤 1谭大志3
作者信息
- 1. 大连理工大学 基础化学实验中心,辽宁 大连 116023;大连理工大学 绿色化学实验社团,辽宁 大连 116023
- 2. 大连理工大学 绿色化学实验社团,辽宁 大连 116023
- 3. 大连理工大学 基础化学实验中心,辽宁 大连 116023
- 折叠
摘要
介绍了应用正交法设计乙酸甲酯制备教学实验的方法,分析了醇酸摩尔比、催化剂用量、分馏柱长度这三个因素对乙酸甲酯收率的影响,筛选出制备的最佳实验条件为醇酸摩尔比为 1.3∶1,催化剂用量为1.5 mL,分馏柱长度30 cm,实现以较少的试验次数达到与全面试验相近的结果.在化学实验教学时,将实验操作训练与数据处理知识相结合,不仅提高了学生的学习兴趣,还让他们更好地理解实验设计思想,培养了他们分析问题和解决问题的实践能力和创新能力,取得了良好的教学效果.
Abstract
This paper introduces the application of orthogonal design for the teaching experiment of methyl acetate synthesis method,analyzes the effects of the molar ratio of alcohol/acid,catalyst dos-age,fractionating column length of these three factors on the yield of methyl acetate.The optimum ex-perimental conditions for synthesis are selected as follows:the molar ratio of alcohol/acid is 1.3∶1,catalyst dosage is 1.5 mL and fractionating column is 30 cm in length.And the results are similar to the comprehensive test with less test times.In chemical experiment teaching,the combination of exper-imental operation training and data processing knowledge not only improves students'learning interest,but also enables them to better understand the idea of experimental design,cultivate their practical and innovative ability to analyze and solve problems,and achieve good teaching effects.
关键词
正交设计/乙酸甲酯/酯化反应/教学Key words
orthogonal design/methyl acetate/esterification reaction/teaching引用本文复制引用
基金项目
2020年度大连理工大学大学生科研创新训练项目(20211014110802)
2024年度大连理工大学大学生科研创新训练项目(20241014130094)
2023年度大连理工大学教育部质量工程项目(ZL2023130)
出版年
2024
NETL
NSTL
万方数据