1st Edition

Colloidal Science of Flotation




ISBN 9780824747824
Published December 17, 2003 by CRC Press
840 Pages

USD $335.00

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Book Description

Keeping pace with explosive developments in the field, Colloidal Science of Flotation reviews and updates the fundamentals of the bubble-particle collection phenomenon using a self-consistent approach that helps readers understand the hydrodynamic aspects of bubble-particle collection. The authors examine bubble rise velocity, water velocity around air bubbles, the thinning of intervening liquid films, the stability of particle-bubble aggregates, and macroscopic processes in froth. They also survey the applicability of emerging technologies in industrial flotation deinking, wastewater treatment, flotation of plastics, and improvements in minerals and coal flotation.

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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Reviews

“This new book is recommended to our many readers interested in colloid science, especially the fundamentals of separation and concentration of colloidal particles. The book begins with a very useful three-tier table of contents, containing eight parts, each consisting of one or more chapters organized into a series of subcategories. … The book is well written, illustrated, and organized. Symbols appearing in the equations are defined at the end of each chapter. There are about 800 references and thorough subject index. ”
— Arthur Hubbard, in Journal of Colloid and Interface Science, 2004