侧柏叶乙醇提取液的超滤膜精制过程研究

Refining process of alcoholic extractedliquidfrom cacumen biotae by ultrafiltration

以４５％乙醇为溶剂，提取侧柏叶有效成分，用ＣＡ－Ｔｉ复合超滤膜对提取液进行分离精制。用溶解度参数法讨论了膜在溶剂中的稳定性。分析研究了膜材料和溶质分子结构与膜分离性能的关系以及操作压力。

According to the process in question, effective components of cacumen biotae are to be extracted with 45% alcohol as solvent, and the extracted liquid to be separated and refined by CATi composite ultrafiltration membrane.The stability of membrane in the solvent was dealt with in this paper by means of solubility parameter.The discussion comprised further of the relation between membrane materials and their separation performance as well as the effects of parameters such as operation pressure, feed concentration on ultrafiltration.