ROLE OF SURFACE FREE-ENERGY IN A SOLID-SURFACE DURING COLLECTORLESS LIQUID-LIQUID-EXTRACTION

被引：15

作者：

KUSAKA, E ^{[1
]}

TAMAI, H ^{[1
]}

NAKAHIRO, Y ^{[1
]}

WAKAMATSU, T ^{[1
]}

机构：

[1] IND RES INST,YONAGO,TOTTORI 683,JAPAN

来源：

MINERALS ENGINEERING | 1993年 / 6卷 / 05期

关键词：

LIQUID-LIQUID EXTRACTION; CONTACT ANGLE; SURFACE FREE ENERGY; DISPERSIVE AND POLAR COMPONENTS; WORK OF ADHESION;

D O I：

10.1016/0892-6875(93)90174-L

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To determine the efficiency of liquid-liquid extraction for recovery of fine solid particles, the transfer of fine solid particles from a water phase to an oil/water interface, or to the oil phase, were investigated without using a collector. The tests were performed with solids of dissimilar hydrophobicity and n-heptane as the oil phase. High recovery levels of the solids having inherently hydrophobic surfaces were obtained. From contact-angle measurements and calculations of the surface free energies of the solids, the polar component of the surface free energy of the solid surface was found to govern the oil-solid adhesion, Moreover, the recovery levels of the collectorless liquid-liquid extraction method correlated with the work of adhesion, particularly, its polar component.

引用

页码：455 / 464

页数：10

共 29 条

[1] EFFECT OF ADSORBED WATER ON WETTING PROPERTIES OF BOROSILICATE GLASS QUARTZ AND SAPPHIRE [J].