Colloidal Science of Flotation
by Anh V. Nguyen & Hans Joachim Schulze

Book | Print Published: 12/17/2003
Hard Cover
840 pages | Illustrated
Print ISBN: 0-8247-4782-8

Description

Elucidates the dynamics of particles and bubbles in flotation, particle–bubble encounter interaction, and particle–bubble attachment interaction. Discusses the stability of particle–bubble aggregates in view of force and energy analysis. Features whole sections on flotation froth, flotation kinetics, and industrial applications such as wastewater treatment.

Table of Contents

INTRODUCTION

Flotation and the Flotation Process
Colloidal Aspects of Flotation

DYNAMICS OF PARTICLES AND BUBBLES IN FLOTATION

Hydrodynamics
Particle Settling Velocity
Bubble Rise Velocity
Water Velocity around Air Bubbles
Motion of Particles in Flotation
Bubble-Particle Interaction

BUBBLE-PARTICLE ENCOUNTER INTERACTION

Determination of Encounter Efficiency
Motion of Particles Diverted by Bubbles
Theory of Encounter Efficiency
Experimental Investigations of Encounter Interaction

BUBBLE-PARTICLE ATTACHMENT INTERACTION

Contact Time Theories
Properties of the Intervening Liquid Films
van der Waals Forces
Electrostatic Double-Layer Forces
Non-DLVO Surface Forces
Thinning of Intervening Liquid Films
Rupture of the Intervening Liquid Thinning Film
Experimental Studies of Thinning Liquid Films
Three-Phase Contact Expansion
Modeling of Attachment Efficiency

STABILITY OF BUBBLE-PARTICLE AGGREGATES

Force Analysis of Particle-Meniscus Stability
Force Analysis of Bubble-Particle Stability
Energy Analysis of Bubble-Particle Stability
Strength of Bubble-Particle Aggregates

FLOTATION FROTH

Froth Structure
Froth Drainage
Macroscopic Processes in Froth

FLOTATION KINETICS

Kinetic Models for Flotation
Effects of Particle Size in Flotation

INDUSTRIAL APPLICATIONS

Industrial Applications

Index

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