Solution Chemistry (eBook)

Minerals and Reagents

P. Somasundaran, Dianzuo Wang (Autoren)

eBook Download: PDF

2006 | 1. Auflage
228 Seiten
Elsevier Science (Verlag)
978-0-08-046507-4 (ISBN)

Infos

Surfactants have been used for many industrial processes such as flotation, enhanced oil recovery, soil remediation and cleansing. Flotation technology itself has been used in industry since the end of the 19th century, and even today it is an important method for mineral processing and its application range is expanding to other areas. This technology has been used in the treatment of wastewater, industrial waste materials, separation and recycling of municipal waste, and some unit processes of chemical engineering. The efficiency of all these operations depends primarily on the interactions among surfactants, solids and media.

In this book, the fundamentals of solution chemistry of mineral/surfactant systems are discussed, as well as the important calculations involved. The influence of relevant physico-chemical conditions are also presented in detail.

* Introduces the fundamentals of solution chemistry of mineral/surfactant systems and important calculations involved
* Discusses the influence of relevant physico-chemical conditions
* Presents the relationship between the molecular structure of the flotation regents of solution chemistry and its characteristics

Inhalt

Front cover 1
Contents 6
Preface 8
Chapter 1. Introduction 10
1.1. Brief review of the solution chemistry of reagent/mineral systems 10
1.2. Outline of the solution chemistry of flotation 12
References 12
Chapter 2. Solution equilibria of surfactants 14
2.1. Acid-base equilibria in dilute flotation solutions 14
2.2. Dissociation and hydrolysis equilibria of short-chain reagents 20
2.3. Diagram approach for solution equilibria of flotation reagents 22
2.4. Weak association and dissociation equilibria of long-chain flotagents 27
2.5. Strong association and micellization equilibria of long-chain surfactants 35
2.6. Hydrophobic association of long-chain surfactants 47
References 52
Chapter 3. Mineral-solution equilibria 54
3.1. Dissolution of minerals 54
3.2. Hydrolysis equilibria of ionic species 61
3.3. Solution equilibria of dissolved mineral species 66
3.4. Surface conversion of minerals by interactions with dissolved mineral species 71
3.5. Charge equilibria of minerals 74
References 81
Chapter 4. Mineral-flotation reagent equilibria 82
4.1. Adsorption and interaction forces of reagents 82
4.2. Microstructure of adsorbed layer of surfactants and polymers on minerals 91
4.3. Surface and bulk interactions between dissolved mineral species and flotation agents 107
4.4. Solution chemical reactions and diagrammatic approaches 119
4.5. Dominant species diagrams 132
4.6. Three-dimensional (3-D) diagram 136
4.7. Electrochemical equilibria 136
References 149
Chapter 5. Application of flotation agents and their structure-property relationships 152
5.1. Classification of flotation agents 152
5.2. Collectors-minerophilic and non-polar groups 153
5.3. Frothers and modifiers 171
5.4. Depressants 178
5.5. Flocculants 190
5.6. Molecular design of flotation agents 202
References 210
Appendix A: The Ka values of commonly used anionic flotagents (Tables A1.1-A1.5) 212
Appendix B: Proton addition constants of some flotation reagents 214
Appendix C: Stability coefficients of metallic ionic hydroxy complex 216
Appendix D: Solubility products of some minerals and compounds 218
Subject Index 220

Produkt-Details

• Erscheint lt. Verlag: 13.11.2006
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Chemie ► Physikalische Chemie
• Themenwelt: Naturwissenschaften ► Geowissenschaften ► Geologie
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik
• Themenwelt: Technik ► Umwelttechnik / Biotechnologie
• ISBN-10: 0-08-046507-2 / 0080465072
• ISBN-13: 978-0-08-046507-4 / 9780080465074