This book is dedicated to the processes of mineral transformation,recycling and reclamation of metals, for the purpose of turningmetals and alloys into a liquid state ready for pouring.
Even though "process metallurgy" is one of the oldesttechnologies implemented by man, technological innovation, with thedevelopment of processes that are both focused on product qualityand economically and ecologically efficient, continues to be at theheart of these industries.
This book explains the physico-chemical bases oftransformations, vital to their understanding and control(optimization of operational conditions), and the foundations interms of "process engineering" (heat and matter assessment, processcoupling: chemical reactions and transport phenomena), vital to theoptimal execution and analysis of transformation processoperations.
This book is addressed to students in the field of metallurgyand to engineers facing the problem of metal and alloy development(operation of an industrial unit or development of a newprocess).
Auflage
Sprache
Verlagsort
Verlagsgruppe
Dateigröße
ISBN-13
978-1-118-61990-2 (9781118619902)
Schweitzer Klassifikation
Preface xi
Chapter 1. Metallurgical Thermochemistry 1
1.1. Introduction 1
1.2. Quantities characterizing the state of a system and itsevolution 3
1.3. Thermodynamic fundamentals of reactions 16
1.4. Phase diagrams 36
1.5. Bibliography 39
Chapter 2. Oxides, Sulfides, Chlorides and Carbides41
2.1. Introduction 41
2.2. Metal-oxygen/metal-sulfur systems activities in theintermediate phases 42
2.3. Standard Gibbs free energy: temperature diagrams for oxides- Ellingham-Richardson diagrams 51
2.4. Thermodynamic data for sulfides and chlorides 58
2.5. Metal-carbon phase diagrams and the Ellingham-Richardsondiagram for Carbides 63
2.6. Carbon and carbon oxide reactions 67
2.7. Bibliography 71
Chapter 3. Metal Solutions, Slags and Mattes 73
3.1. Introduction 73
3.2. Metal solutions 74
3.3. Mattes 93
3.4. Slags 106
3.5. Bibliography 127
Chapter 4. Aqueous Electrolytic Solutions and Salt Melts131
4.1. Introduction 131
4.2. Thermodynamics of aqueous electrolyte solutions 131
4.3. Thermodynamics of salt melts (fluxes) 173
4.4. Bibliography 179
Chapter 5. Reaction Kinetics 183
5.1. Introduction 183
5.2. Rate of a chemical reaction 184
5.3. Homogeneous precipitation 189
5.4. Kinetics and mechanism of heterogeneous reactions 194
5.5. Reaction rates for in situ conversion of a solid particle211
5.6. Heterogeneous precipitation 215
5.7. Bibliography 217
Chapter 6. Transport Kinetics 219
6.1. Introduction 219
6.2. Equations of change and relationships between diffusionfluxes and driving forces 223
6.3. Interphase mass or heat transport (mass and heat transfer)227
6.4. Mass and heat transfer coefficients 236
6.5. Overall kinetics of extraction processes under mixedcontrol 247
6.6. Bibliography 251
Chapter 7. Particulate Kinetics 253
7.1. Introduction 253
7.2. Gasification/leaching of a particle 254
7.3. Heterogeneous precipitation: growth rate of the particles263
7.4. In situ conversion of a solid particle 264
7.5. Conversion of a particle undergoing strong exo- orendothermic chemical reactions 270
7.6. Transfer processes between two fluid phases, one phasebeing dispersed (as drops or bubbles) in the second phase 276
7.7. Bibliography 280
Chapter 8. Electrochemical Reactions 283
8.1. Overview of electrochemical processes 283
8.2. Equilibrium electric potential of an elementaryelectrochemical reaction 285
8.3. Electrochemical equilibria of metals and metalloids(Pourbaix diagrams)292
8.4. Electrochemical kinetics 306
8.5. Redox electrochemical reactions 314
8.6. Bibliography 322
List of Symbols 325
Index 337
Summaries of Other Volumes 345
