Scientific Publishers | textbook-mineral-processing

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Blurb

Run-of-mine ore processing is a method of added value in which undesirable gangue-bearing minerals are discarded to obtain the desired minerals. Mineral processing has tangible benefits including savings in freight and handling, and the recovery of metal values from the slag as well as intangible benefits such as mineral conservation, environment protection by filling the mine using gangue-bearing minerals, and energy saving. This book provides rudimental, theoretical and operational knowledge of mineral processing along with coal characterisation and processing of ores of metallic and industrial minerals. It also explains definitions and techniques, along with basic formulas and practical examples. This book is designed for professionals in geology, mining, mineral, metallurgical and chemical engineering. The eccentric feature of this book is the introduction of simple numerical calculations for evaluation of the processes which in turn help understand the concepts with enhanced clarity and handle day-to-day operations of mineral processing plants. Therefore, it can be used both as a simple reference guide and a concise course in mineral processing.

Preface
Acknowledgements

1. Introduction
   1.1 Minerals
   1.2 Mineral processing
   1.3 Mineral properties useful for beneficiation
   1.4 Mineral characterization
   1.5 Problems for practice
2. Sampling
   2.1 Gross sample from a huge lot
   2.2 Reduction of gross sample
   2.3 Sample preparation
3. Size analysis
   3.1 Sieve analysis
   3.2 Testing method
   3.3 Particle size distribution data presentation
   3.4 Size assay analysis
   3.5 Sub-sieve sizing
   3.6 Problems for practice
4. Screening
   4.1 Screen
   4.2 Screen surfaces
   4.2.1 Profile bars or parallel rods
   4.2.2 Punched or perforated plates
   4.2.3 Woven wire cloth
   4.3 Screening process
   4.4 Types of industrial screens
   4.4.1 Stationary screens
   4.4.2 Moving screens
   4.4.3 Revolving screens
   4.4.4 Shaking screens
   4.4.5 Vibrating screens
   4.5 Screen efficiency
   4.6 Problems for practice
5. Density
   5.1 Solids and pulp
   5.2 Miscible liquids
   5.3 Problems for practice
6. Liberation
7. Comminution
   7.1 Fracture
   7.2 Objectives of comminution
   7.3 Laws of comminution
   7.4 Types of comminution operations
   7.5 Problems for practice
8. Crushing
   8.1 Jaw crusher
   8.2 Gyratory crusher
   8.3 Cone crusher
   8.4 Roll crusher
   8.5 Crushing operation
   8.6 Open and closed circuit crushing operations
   8.6.1 Open circuit crushing operation
   8.6.2 Closed circuit crushing operation
   8.7 Hammer mill
   8.8 Special crushers
   8.8.1 Rotary breaker
   8.8.2 Toothed roll crusher
   8.8.3 Stamp mill
   8.9 High pressure grinding rolls (HPGR)
   8.10 Problems for practice
9. Grinding
   9.1 Ball mill
   9.2 Rod mill
   9.3 Tube or pebble mill
   9.4 Autogenous mill
   9.5 Grinding circuits
   9.6 Problems for practice
10. Settling of solid particles in fluids
   10.1 Laminar and turbulent flows
   10.2 Fluid resistance
   10.3 Terminal velocity
   10.4 Free settling
   10.5 Hindered settling
   10.6 Equal settling particles
   10.7 Settling ratio
   10.8 Settling of large spheres in a suspension of fine spheres
   10.9 Problems for practice
11. Classification
   11.1 Pool classifiers
   11.2 Hydraulic classifiers
   11.3 Efficiency of a classifier
   11.4 Hydrocyclone
   11.5 Classification as concentration operation
   11.6 Problems for practice
12. Beneficiation operations
   12.1 Preliminary washers
   12.2 Hand sorting or picking
13. Gravity concentration
   13.1 Sink and float
   13.2 Heavy medium separation
   13.2.1 Chance cone process
   13.2.2 Centrifugal separator
   13.3 Jigging
   13.3.1 Types of hydraulic jigs
   13.4 Flowing film concentration
   13.4.1 Spiral concentrator
   13.4.2 Concentrating table
   13.5 Dry gravity concentration
14. Froth flotation
   14.1 Atomic Bonding
   14.2 Surface energy and surface tension
   14.3 Adsorption
   14.4 Floatability
   14.5 Contact angle
   14.6 Flotation reagents
   14.6.1 Collectors (Collecting agents)
   14.6.2 Frothers
   14.6.3 Modifiers (Regulators)
   14.7 Types of flotation
   14.8 Flotation machines
   14.9 Aeration and froth formation
   14.10 Formation of mineralized bubbles
   14.11 Flotation operation
   14.12 Column flotation
15. Magnetic separation
   15.1 Electro magnetism
   15.2 Types of minerals
   15.3 Magnetic separators
   15.3.1 Classification of magnetic separators
   15.3.2 Tramp iron magnetic separators
   15.3.3 Concentrators
16. Electrical separation
   16.1 Charge and charge interactions
   16.1.1 Conductors and insulators
   16.1.2 Polarisation
   16.2 Methods of charging
   16.3 Electrostatic separation
   16.4 Electrostatic separators
   16.5 High tension separator
   16.6 Dielectric Separation
17. Evaluation of beneficiation operations
   17.1 Problems for practice
18. Dewatering
   18.1 Thickening
   18.1.1 Flocculation
   18.1.2 Thickener
   18.1.3 Hi-capacity thickener
   18.2 Filtration
   18.2.1 Types of filters
   18.2.2 Pressure filters
   18.2.3 Continuous vacuum filters
19. Coal characterization
   19.1 Proximate analysis
   19.1.1 Expression of analytical results on different bases
   19.1.2 Calculations on different bases
   19.2 Varieties of coal
   19.3 Float and sink
   19.4 Washability characteristics of coal
   19.5 Near gravity materials
   19.6 Yield reduction factor
   19.7 Washability index
   19.8 Optimum degree of washability (ODW)
   19.9 Washability number
   19.10 Coal processing
   19.11 Problems for practice
20. Processing of ores and coal
   20.1 Processing of ores of metallic minerals
   20.2 Processing of ores of industrial minerals
   20.3 Processing of coal
   Annexure : Experimental procedure for determination of  Bonds Work Index
   References
   Further readings
   Subject Index