Critical oil-liquid interfacial tension for some oil-assisted fine particle processing methods

被引：11
作者：
Duzyol, S. [1 ]
Ozkan, A. [1 ]
Yekeler, M. [2 ]
机构：
[1] Selcuk Univ, Dept Min Engn, TR-42075 Konya, Turkey
[2] Cumhuriyet Univ, Dept Min Engn, TR-58140 Sivas, Turkey
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2012年 / 398卷
关键词：
Oil-liquid interfacial tension; Oil agglomeration; Liquid-liquid extraction; SOLUTION SURFACE-TENSION; EXTRACTION; AGGLOMERATION; FLOTATION; CATIONS; ENERGY;
D O I：
10.1016/j.colsurfa.2012.02.005
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 presents that oil-liquid interfacial tension (gamma(OL)) value significantly affects the oil agglomeration and liquid-liquid extraction processes as oil-assisted methods in fine particle processing. The decrease in the oil-liquid interfacial tension leads to the decreases in the recoveries of minerals in both oil agglomeration and liquid-liquid extraction techniques. Eventually, these oil-assisted methods do not take place below a particular value of oil-liquid interfacial tension. The oil-liquid interfacial tension value at which oil agglomeration does not occur was defined as 'critical oil-liquid interfacial tension for oil agglomeration, gamma(c-OL-e)' and at which liquid-liquid extraction does not take place was also defined as 'critical oil-liquid interfacial tension for liquid-liquid extraction, gamma(c-OL-e)' Consequently, the oil-liquid interfacial tension of the medium for successful processes of oil agglomeration and liquid-liquid extraction of a mineral must be higher than the related critical interfacial tension value. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：32 / 36
页数：5
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