【摘要】 本文介绍液膜用高分子表面活性剂PSN_-89414的性能,通过界面张力测定,用表面活性剂分子在界面上吸附理论导出公式求得Span80,PSN_-89414的界面吸附平衡常数K_s及S_sf的数值,结果表明,K_s、S_sf数值愈大的表面活性剂制得乳状液愈稳定,液膜溶胀愈小。PSN_-89414的W/O/W乳状液体系用于稀土分离,速度快,从浓度1.2g/L的稀土溶液浓集到103g/L。更多还原

【Abstract】 The properties of high molecular surfactant PSN-89414 used in liquid membrane are introduced in this paper. By determining the values of interface tention, the equilibrium constant K_? and S_? for interface adsorption of Span 80,PSN-89414 are obtained by interface adsorption theories of surfactant moleculars. The result shows: higher K_?、K_?Values of the surfactants make more stable emulsions and less swelling liquid membrane. The w/o/w emulsion system of PSN-89414 has high separation rate in rare earth separation process and increase the concentration from 1.2g/1 to 103g/1.更多还原