摘要
通过正交实验对影响羊毛脂乙酰化反应的主要因素进行了研究 ,实验结果表明 :乙酰化试剂的用量为 30 % (质量分数 )、反应温度 1 40℃和反应时间 2 h为该反应的最优条件 ;减压回收过量乙酰化试剂和醋酸副产物是对羊毛脂乙酰化产物进行后处理的有效方法 ,最后通过水洗和真空脱水操作可以使乙酰化羊毛脂的酸价降至 4以下。
The main factors effecting the acetylated reaction of lanolin was studied by the method of orthogonal experiment. The optimum synthetic conditions were obtained as follow:acetic anhydride dosage 30%,reaction temperature 140℃, reaction time 2h, recovering excessive acetic anhydride and acetic byproduct with decompression is effective treatment for lanolin. In the end, the acid value of anhydride lanolin can drop to below pH 4 combining with the method of washing and vacuum dryness.
出处
《陕西科技大学学报（自然科学版）》
2003年第1期31-34,共4页
Journal of Shaanxi University of Science & Technology
基金
浙江省赞成科技基金资助项目
