Effect of gas transfer on separation of whey protein with aphron flotation

被引：28

作者：

Amiri, MC

Valsaraj, KT

机构：

[1] Isfahan Univ Technol, Dept Chem Engn, Esfahan, Iran

[2] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2004年 / 35卷 / 02期

关键词：

aphron bubbles; disc position; flotation; whey; gas transfer;

D O I：

10.1016/j.seppur.2003.08.007

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The efficiency of conventional flotation sharply reduces when the diameter of dispersed particles are less than 10 mum and it fails completely for particles less than 1 mum. Colloidal gas aphron (CGA) bubbles, offer particular advantages in the removal of ultra-fine particles. Aphron flotation can be considered for separation of whey protein because of its submicron size. As the characteristics of aphron bubbles play a key role on the performance of flotation, the experiments conducted in this work were specially designed to test the effect of gas transfer during aphron generation process. This has been done by investigating the effect of the spinning disc position in aphron generator and also the mode of surfactant addition on aphron flotation of whey protein at two different temperatures. It was found that gas transfer into dispersion during aphron generation is a controlling step for aphron flotation. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：161 / 167

页数：7

共 16 条

[1] THE EFFECT OF BUBBLE-SIZE ON THE RATE OF FLOTATION OF FINE PARTICLES [J].