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ժҪ ��òⶨ�絼�ķ��,ȷ��30��ʱ��/��/Span80+Tween80/ˮ��ϵ,km(��,��/Span80+Tween80)=0.5��1.0��2.0��΢��γɵķ�Χ,��Ƴ�΢��Һ��Ԫϵͳ��ͼ��ڴ�,��ֱ�ⶨ��km=0.5��1.0;we(��,�黯��/��)=0.1~0.9��ͬ��¸��γ�΢��ˮ��ʱ΢��֮��ȼ��ޡ�ʵ��,΢��Һ�Ĺ��ȼ��޼��ˮ��,��״Һ��ȼ��ˮ��ߴ��ԵĲ�ͬ��Ļ��ⶨ��we=0.4,km=0.5ʱ,��黯��(��)�ֱ�Ϊ��~��΢��Ĺ��ȼ��,��ֱ��̼ԭ��Ӷ�΢��Һ�Ĺ��ȼ��Ҳ��֮��ߡ�

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�ؼ���� ΢��Һ ��ȼ�� 絼 ��Լ� ��Լ� ΢�۱�ը

Abstract�� Pseudo-ternary phase diagrams in four-component systems of n-C_7H_(16)/n-C_4H_(10)/Span80+Tween80/H_2O are presented at 30 �� with k_m=0.5,1.0,2.0(con-surfactant/surfactant,mass ratio) by electrical conductivity respectively.On the basis of these phase diagrams,the superheat limit temperatures of these systems with k_m=0.5,1.0 and w_e=0.1��0.9 have been measured by using the column method at two points where the micro-emulsion is just formed and water content is largest.The test results show that the superheat limit temperature hardly varies with the increase of water content.In addition,at w_e=0.4 and(k_m=0.5),the superheat limit temperature of the micro-emulsion was explored respectively with the con-surfactant from n-C_4H_9OH to n-C_8H_(17)OH.The test result shows that the superheat limit temperature rises with the increase of the carbon number of con-surfactant(alcohol).

Keywords��

Received 2006-11-15; published 2006-11-15

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�Ƶ�ʤ;��۷�;Ф�ܷ�;.΢��Һ��Ʊ��ȼ��޵Ĳⶨ[J]. ��ѧ��ҵ�빤��, 2006,23(6): 516-519

HUANG De-sheng~1,JIN Hui-fen~2,XIAO Yan-fan~1.Preparation of Microemulsion and Determination of Its Superheat Limit[J]. Chemcial Industry and Engineering, 2006,23(6): 516-519