Dynamics of Adsorption at Liquid Interfaces

Theory, Experiment, Application

S.S. Dukhin, G. Kretzschmar, R. Miller

• Publisher: Elsevier Science
• Year: 1995
• Print ISBN:
  9780444881175
• eBook ISBN:
  9780080530611
• Topic: Technology & Engineering
• Subtopic: Chemical & Biochemical Engineering
• Index: Technology & Engineering

As the first of its kind, this book provides a valuable introduction for scientists and engineers interested in liquid/fluid interfaces and disperse systems to the rapidly developing area of adsorption dynamics. It is the first extensive review available on the subject of dynamics of adsorption and gives a general summary of the current state of adsorption kinetics theory and experiments. Current progress in recently designed set-ups and improved and generalised known methods for studying interfacial relaxations is reviewed. In addition, the role of the electric charge of surfactants in the adsorption process is discussed in terms of a non-equilibrium distribution of adsorbing ions in the diffuse layer.Present theories of the effect of dynamic adsorption layers on mobile surfaces, such as moving drops and bubbles, based on both diffusion and kinetic controlled adsorption models are described and efficient approximate analytical methods to solve the mathematical problem of coupling surfactant transport and hydrodynamics are introduced. The role of a dynamic adsorption layer in bubble rising, film drainage and film stabilisation and in complex processes such as flotation and microflotation is discussed.Containing more than 1100 references, the book is essential reading for industrial scientists and graduate and post-graduate students in physical, surface and colloid chemistry, physico-chemical hydrodynamics, water purification and mineral processing.

Table of contents

• Front Cover
• Dynamics of Adsorption at Liquid Interfaces: Theory, Experiment, Application
• Copyright Page
• Contents
• Preface
• Chapter 1. Introduction
• Chapter 2. Thermodynamics and macro-kinetics of adsorption
• Chapter 3. Surface phenomena, surface rheology and relaxations processes at liquid interfaces
• Chapter 4. The dynamics of adsorption at liquid interfaces
• Chapter 5. Experimental technique to study adsorption kinetics
• Chapter 6. Relaxation studies at liquid interfaces
• Chapter 7. Effect of surfactant charge on the dynamics of adsorption
• Chapter 8. Dynamic adsorption layer of buoyant bubbles. Diffusion-controlled transport of nonionic surfactants
• Chapter 9. Dynamic adsorption layers of surfactants at the surface of buoyant bubbles. Kinetic-controlled surfactant transport to and from bubble surfaces
• Chapter 10. Dynamic adsorption layer in microflotation
• Chapter 11. Dynamic adsorption layer in flotation
• Chapter 12. Non-equilibrium surface forces caused by dynamic adsorption layers and their relevance in film stability and flotation
• Appendix 2A: General principles of the degrees of freedom of interfaces
• Appendix 2B: Discussion of Further Adsorption Isotherms
• Appendix 2C: Non-Equilibrium Surface Thermodynamics
• Appendix 2D: Thermodynamics of Thin Liquid Films
• Appendix 3A: Sound Propagation in Liquid/Fluid Disperse systems and Chemical Reaction
• Appendix 3B: Dynamic Contact Angles
• Appendix 3C: Marangoni-instabilities and dissipative structures
• Appendix 3D: Lateral Transport Phenomena
• Appendix 4A: Numerical solution of the integral equation of Ward and Tordai
• Appendix 4B: Numerical solution of the function exp(x2)erfc(x)
• Appendix 4C: Finite difference scheme to solve the initial and boundary condition problem of a diffusion controlled adsorption model
• Appendix 4D: Finite difference scheme to solve the initial and boundary condition problem of a diffusion controlled adsorption model for a two component surfactant system
• Appendix 4E: Application of the Laplace transform to solve the diffusion-controlled adsorption kinetics model
• Appendix 4F: Polynomial parameters of the collocation solution Eq. (4.25) after Ziller & Miller (1986)
• Appendix 5A: Correction Factors after Wilkinson (1972) in the form rcap/a as a function of r.V -1/3
• Appendix 5B: Density and viscosity of selected liquids
• Appendix 5C: Surface tension of selected liquids and its interfacial tension to water
• Appendix 5D: Isotherm parameters of selected surfactants
• Appendix 5E: Mutual solubility of organic solvents and water
• Appendix 5F: Numerical aAlgorithm to sSolve the Gauss-Laplace equation
• Appendix 5G: Dynamic surface tensions in the sub-millisecond range
• Appendix 6A: Application of system theory for the determination of interfacial tension Response functions to small interfacial area disturbances
• Appendix 6B: Interfacial tension response functions Δγ(T) to harmonic and several types of transient area disturbances
• Appendix 6C: Interfacial pressure response to area disturbances in presence of insoluble monolayers
• Appendix 7A: The approximate integration of the differential equation of adsorption of multivalent ions
• Appendix 8A: Small rear stagnant cap of bubble at high Reynolds numbers
• Appendix 10A: Processes restricting water purification by microflotation, and prevention of bubble surface retardation
• Appendix 10B: Role of r.s.c, in transport stage at different particle attachment mechanisms
• Appendix 10C: Choice of hydrodynamic regime under production conditions. Decimicrone-size particle
• Appendix 10D: New development in surface forces
• Appendix 10E: Microflotation of submicron, micron and decimicron particles
• Appendix 10F: Flotation with centimicron and millimeter bubbles
• Appendix 10G: Flotation with bubbles between millimeter and centimicron
• Appendix 10H: Possibility of microbubble capture from below, dynamic adsorption layer and possibility of decrease of surfactant consumption
• Appendix 10I: Air-dissolved flotation and two-stage flotation
• Appendix 10J: Industrial application of two-stage microflotation
• Appendix 10K: Bubble polydispersity in two-stage flotation
• Appendix 10L: Two-stage microflotation with particle aggregation
• Appendix 10M: Comments on the role of boundary layer and centrifugal force as discussed by Mileva (1990)
• Appendix 11A: Correction of the calculation of centrifugal forces at St > St c
• Appendix 11B: Analysis the theory by Schulze and co-worker on attachment by collision
• List of Symbols
• Subject Index