MEASUREMENT OF BOUNDARIES BETWEEN 2-PHASE AND 3-PHASE REGIONS IN EMULSIFIED SYSTEMS BY TITRATION CALORIMETRY

被引：11

作者：

SMITH, DH ^{[1
]}

ALLRED, GC ^{[1
]}

机构：

[1] PHILLIPS PETR CO,BARTLESVILLE,OK 74004

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1988年 / 124卷 / 01期

关键词：

CALORIMETRY - OILS AND FATS - WATER;

D O I：

10.1016/0021-9797(88)90340-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper demonstrates how titration calorimetry can be used to precisely determine phase boundaries in multiphase systems containing emulsions. Transitions from two-phase regions to three-phase regions or from three-phase regions to two-phase regions are detected during titration as changes in the slope of heat evolved vs time. The method is more precise and rapid than conventional phase volume measurements. Since measurements are made with emulsions present, the method can be used to study industrially important systems containing relatively stable emulsions. Measurements on a surfactant/oil/water system and two surfactant/oil/brine systems gave compositional boundaries comparable to those obtained by phase volume experiments.

引用

页码：199 / 208

页数：10

共 25 条

[1] THE EQUILIBRIUM OF 3 LIQUID-PHASES UPON APPROACH TO THE TRICRITICAL POINT IN WATER-ACETONITRILE-BENZENE-NORMAL-HEXANE MIXTURES [J].