lix984n对萃取分相和界面乳化的影响.pdf

23 4 矿　冶　工　程 Vol.23 №4 2003 08 MININGAND METALLURGICAL ENGINEERING August 2003 Lix984N 1 2 2 刘晓荣, 邱冠周, 胡岳华 (1. , 200233;2., 410083) 　:Lix984N 。 Lix984N 0.5%5.0%, 、, 。 Lix984N (HLB) 1.29, Bancroft , Lix984N W O 。, Lix984N , ;Lix984N , , Lix984N 。 :;Lix984N;;;HLB ; Effect of Lix984N on Phase Disengagement and Interface Emulsification in Copper Solvent Extraction 1 2 2 LIU Xiao-rong , QIU Guan-z ou , HU Yue-ua (1.Dep artment of Material, Shanghai Institute of Technology , Shanghai 200233, China ;2.Dep artment of Minera l Engi- neering , Central South University , Changsha 410083, Hunan, China ) Abstract:T e effect of Lix984N on p ase disengagement and interface emulsification in copper solvent extraction is studied. W en t e volume factor of Lix984N is increased from 0.5%to 5.0%, t e p ase disengaging speed is reduced due to t e in- crease of organic p ase s density and viscosity and t e reduction of organic p ase s surface tension.T e HLB value of Lix984N calculated using Davies incremental approac is 1.29.According to t e Bancroft rule, Lix984N is in favour of t e stabilization of W O emulsion.T e results ave s own t at Lix984N does not predominate in t e process of interface emulsifi- cation and t e solid particles in t e system is t e decisive factors for interface emulsification.Wit increasing of t e volume factor of Lin984N, t e affinity between organic p ase and solid particles increases, resulting in synergetic emulsifying effect between Lin984N and solid particles. Key ords:copper solvent extraction;Lix984N;p ase disengagement;interface emulsification;HLB value;solvation energy 　　, 。 (