武汉工程大学学报2013，Vol.35Issue(6)：12-15,4.DOI:10.3969/j.issn.1674-2869.2013.06.003
稀土固体超强酸催化合成氯乙酸十二酯的工艺
Process for rare earth solid super acid superacid catalyst in synthesis of Dodecyl chloroacetate
摘要
Abstract
To reduce the effluent discharge and reduce the cost in the process of production,the rare earth solid superacid catalyze chloroacetic acid and lauryl alcohol synthesis method was used to replace the method of Chloroacetyl chloride and lauryl alcohol condensation.The four factors affecting the esterification reaction,such as the amount of catalyst,the molar ratio of acid and alcohol,the reaction time and the used times of catalyst were studied by single factor experiment method,and the products were analyzed by gas chromatography to get the optimized process parameters.the optimum reaction conditions were obtained when lauryl alcohol of 0.09 mol was added as benchmark,n(alcohol)/n(acid)was 1.15:1,Ψ(catalyst) was 2.8 ％ (based on dodecanol),reaction temperature was 135 ℃,and the reaction time was 3 h.The results show that the yield can reach 97.79％ under the optimized condition； the catalyst is easy to recover through simple processing,and can be reused many times.This method is excellent for the esterification reaction because of simple operation,no environment pollution,etc.关键词
固体超强酸/催化合成/酯化反应Key words
rare earth solid super acid/ catalyzed synthesis / dodecyl chloroacetate分类
化学化工引用本文复制引用
潘志权,糜昊,程清蓉..稀土固体超强酸催化合成氯乙酸十二酯的工艺[J].武汉工程大学学报,2013,35(6):12-15,4.基金项目
湖北省科技厅研究与开发项目(2011BBB029) （2011BBB029）
