| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 594360 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2012 | 5 Pages |
This paper presents that oil–liquid interfacial tension (γOL) 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, γc–OL–a’ and at which liquid–liquid extraction does not take place was also defined as ‘critical oil–liquid interfacial tension for liquid–liquid extraction, γc–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.
Graphical abstractA significant correlation was established between the oil–liquid interfacial tension (γOL) and the oil-assisted methods.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Oil–liquid interfacial tension significantly affects oil agglomeration process. ► Liquid–liquid extraction process is affected by oil–liquid interfacial tension. ► Oil–liquid interfacial tension decreases with increasing methanol concentration.
