摘要
介绍了以醋酸和纯碱为原料,不加任何溶剂,采用一步法合成新型防腐剂双乙酸钠的新工艺,确定了最佳工艺条件:n(醋酸):n(纯碱)为(4.0～4.2):1;反应温度60～70℃;反应时间120～180min;醋酸加料时间40～60min,所得产品质量合格,收率可达96％以上。
A new method for preparing sodium diacetate by one step reaction based on acetic acid and sodium carbonate (without any solvent) was studied. The optimum conditions were determined as follows; the ratio of acetic acid to sodium carbonate is (4. 0-4. 2) : 1 (molar) , reaction temperature is 60-70℃, reaction time is 120-180 min, and the time for addition of acetic acid is 40-60 min. The product quality was up to FAO/WHO standard and the yield was 96%.
出处
《北京石油化工学院学报》
2002年第1期34-36,共3页
Journal of Beijing Institute of Petrochemical Technology
关键词
双乙酸钠
醋酸
纯碱
一步法合成
工艺
sodium diacetate
acetic acid
sodium carbonate
synthesis
