Effect of frother blends on hydrodynamic properties

被引：19

作者：

Elmandy, A. M. ^{[1
]}

Finch, J. A. ^{[2
]}

机构：

[1] Cent Met R&D Inst, Mineral Proc Dept, Cairo, Egypt

[2] McGill Univ, Dept Anat, Dept Min & Mat Engn, Montreal, PQ H3A 2B2, Canada

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2013年 / 123卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Frothers; Frother blends; Bubble size; Gas holdup; Froth stability; BUBBLE-SIZE;

D O I：

10.1016/j.minpro.2013.04.019

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of blending polyglycols (F150 and DF250) with alcohols (MIBC and pentanol) on bubble size, gas holdup and froth height in a two-phase system has been determined. A synergistic effect on froth height was observed accompanied by a change in bubble size: below the alcohol critical coalescence concentration (CCC) the addition of small amounts of polyglycol decreased bubble size and, unexpectedly, above the alcohol CCC the polyglycol increased bubble size. Gas holdup confirmed the bubble size response. No explanation of the latter effect is immediately apparent. Implications for possible independent control of froth stability and bubble size as a reason for using frother blends are discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：60 / 63

页数：4

共 20 条

[1]

Azgomi F, 2007, CAN METALL QUART, V46, P237, DOI 10.1179/000844307794565954

[2] Correspondence of gas holdup and bubble size in presence of different frothers [J].