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.

    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

    Biography

    Ahn Nguyen, Hans Joachim Schulze

    “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