摘要
以固体超强酸树脂为催化剂合成了邻苯二甲酸二甲酯,分别对醇酸摩尔比、催化剂用量、反应温度、反应时间进行单因素和正交试验,并通过极差和方差分析对酯化过程中显著影响酯化率的因素进行统计分析。结果表明最佳的合成工艺条件为:醇酸摩尔比4.5、催化剂用量2.5%、反应温度115℃、反应时间160min,在此工艺条件下酯化率可达99.5%。该催化剂具有良好的耐磨性,可重复使用。
The dimethyl phthalate was synthesized which catalyzed by solid super acid resin. The effects of radio of alcohol to acid, catalyst dosage, reaction temperature and reaction time on esterifi cation yield were investigated by single factor test and orthogonal array design methods. And the notability difference was analyzed by statistic method of range and variance. Results showed that the optimal conditions were as followed： the ratio of alcohol to acid was 4.5,the catalyst dosage was 2.5%, the reaction temperature was 115℃ and the reaction time was 160min. Under the optimal conditions, the esterifi cation yield was reached up to 99.5%. The wear resistance of catalyst was excellent and could be reused.
出处
《化工技术与开发》
CAS
2014年第5期14-17,共4页
Technology & Development of Chemical Industry
基金
福建省教育厅科技计划项目(JB13294)
漳州市自然科学基金(ZZ2013J07)
漳州职业技术学院科技计划项目(ZZY1304)
