MODELING OF NEGATIVE BIAS COLUMN FOR COARSE PARTICLES FLOTATION

被引：22

作者：

OTEYAKA, B

SOTO, H

机构：

[1] Dept. Mines and Metallurgy, Laval University

来源：

MINERALS ENGINEERING | 1995年 / 8卷 / 1-2期

关键词：

FLOTATION; COLUMN; MODELING; BUBBLE SIZE; PARTICLE SIZE; AIR HOLD-UP;

D O I：

10.1016/0892-6875(94)00105-L

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A model for coarse particle flotation in columns operating with negative bias is presented. The model assumes plug flows of particles and bubbles, low turbulence, and a collection mechanism based on bubble-particle interception. Experimental results obtained with quartz and calcite are in close agreement with the predicted values for particle sizes in the range 100 to 700 microns. For a given column length recovery depends mainly on bubble size, air hold up and particle size.

引用

页码：91 / 100

页数：10

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