• 作者： Huang, Yaou-Huei; Chen, Chuh-Yung; Kuo, Jen-Feng
• 中文摘要： 本文以鄰二甲苯固定化液膜來分離鹽酸溶液中之砷。砷在各種濃度鹽酸中之分配係數被測得,而總質傳係數在 0.54-1.9*10/sup -3/cm/sec之間,隨進料相所使用的鹽酸濃度及攪拌速率而變。當攪拌速率大於800rpm,而進料相鹽酸濃度維持在9.6N時,總質傳係數漸達一定值,不再隨攪拌速率增大而增大。本系統之液膜阻力為340sec/cm,而最小進料相水膜阻力為480sec/cm。當進料相鹽酸濃度大於7.6N時,砷質傳的主要阻力為進料相水膜阻力。
• 英文摘要： An o-xylene-ME-24 supported liquid membrane was prepared for the separation of As(III) from HCl aqueous solution. The partition coefficients of As(III) in various HCl concentrations of aqueous solution were measured. The overall permeation coefficients obtained were 0.54-1.9*10/sup -3/cm/sec, depending on HCl concentration of the feed phase and stirring speed. The overall permeation coefficient for the feed phase of 9.6N HCl leveled off as the stirring speed was greater than 800rpm. The minimum feed aqueous film resistance obtained was 480sec/cm, and the membrane resistance was 340sec/cm. The governing resistance of As(III) permeation in this system is the feed aqueous film resistance when the feed phase HCl concentration is greater than 7.6N.
• 中文關鍵字： 砷; 液膜; 分配係數; 總質傳係數; 分離
• 英文關鍵字： Arsenic; Liquid Membrane; Partition Coefficient; Overall Permeation Coeffcient; Separation