A review of entrainment: Mechanisms, contributing factors and modelling in flotation

被引：250

作者：

Wang, L. ^{[1
]}

Peng, Y. ^{[2
]}

Runge, K. ^{[1
]}

Bradshaw, D. ^{[1
]}

机构：

[1] Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

来源：

MINERALS ENGINEERING | 2015年 / 70卷

关键词：

Entrainment; Froth flotation; Modelling; Gangue recovery; Degree of entrainment; WATER RECOVERY; TRUE FLOTATION; PARTICLE ENTRAINMENT; RESIDENCE TIME; GANGUE; CELLS; OXIDATION; LIQUID; SIZE;

D O I：

10.1016/j.mineng.2014.09.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper reviews the recovery by entrainment in froth flotation. In flotation, entrainment is a mechanical mass transfer process by which particles suspended in the water between bubbles enter the flotation froth from the top pulp region and are transferred to the concentrate. Both hydrophobic and hydrophilic mineral particles suspended in water can experience entrainment. In this paper, the mechanisms of entrainment are reviewed. The essential factors affecting entrainment are also discussed. The methods for the quantification of entrainment are identified. Entrainment models presented in the literature are reviewed with the aim of identifying their significance and usefulness in industrial applications. There is a need to develop a more general model of entrainment since the current models available cannot be used to predict entrainment at a changed operating or feed condition. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：77 / 91

页数：15

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