无机陶瓷膜超滤精制连花清瘟颗粒的工艺研究

目的 在无机陶瓷膜精制连花清瘟颗粒过程中,考察不同孔径的膜对该体系的适用性,并进行膜过程优化设计.方法 以连花清瘟水提液为研究对象,测定了3种不同孔径膜及不同操作参数下对膜通量及有效成分含量的变化.结果 50 nm膜的膜通量最大,甘草酸及绿原酸转移率最高,最佳大生产过滤条件为操作压差为0.08～0.12 MPa,过滤温度50～60℃,膜面流速3.0 m/s;当过滤液浓缩到原液体积1/10时,加入相同体积的水,有效成分转移率达80%以上,即可结束过滤.采用强酸、强碱交替清洗,膜通量可恢复99%以上.结论 采用无机陶瓷膜超滤技术精制连花清瘟颗粒是可行的,并为陶瓷膜分离技术应用于其它中药水提液的精制提供了依据.

Study on the Refinement of Lianhua Qingwen Granule with Inorganic Pottery Membranes

Objective To observe the effect of the different bore diameter membranes on the parameters of technologies of Lianhua Qingwen Granules and to optimize the process of membrane filtration.Methods Three different membranes were tested under different parameters of operation to observe the changes in membrane flux and the content of effective components by Lianhua Qingwen Granules.Results The membrane with the 50nm had the great flux,the transfer rates of glycyrrhizin and chlorogenic acid were the highest.The o...