Separation of phosphatidylcholine from soybean phospholipids by simulated moving bed.
A simulated moving bed (SMB), equipped with eight silica-gel columns, was used to separate phosphatidylcholine (PC) from soybean phospholipids. The effects of flow rate in Sections 2 (Q(2)) and 3 (Q(3)), switching time, feed flow rate and feed concentration on the operating performance parameters: purity, recovery, productivity and desorbent consumption were studied. Operating conditions leading to more than 90% purity in both outlet streams have been identified, together with those achieving optimal performance. Regions leading to complete separation are observed and explained theoretically. As the mass-transfer effect was not considered, the triangle theory only gives initial guesses for the optimal operating conditions.
Lü
Yu-bin
YB
National Laboratory of Secondary Resources Chemical Engineering, Zhejiang University, Hangzhou 310027, China. lvyubin2001@zju.edu.cn
Yang
Yi-wen
YW
Wu
Ping-dong
PD
D005591:Chemical Fractionation / Q000379:methods*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003198:Computer Simulation; D008956:Models, Chemical; D010713:Phosphatidylcholines / Q000302:isolation & purification*; D010743:Phospholipids / Q000737:chemistry; D010936:Plant Extracts / Q000302:isolation & purification*; D013025:Glycine max / Q000737:chemistry*
D010713:Phosphatidylcholines; D010743:Phospholipids; D010936:Plant Extracts