Magnetic Techniques for the Treatment of Materials

ISBN-13: 9789048165773 / Angielski / Miękka / 2010 / 642 str.

Jan Svoboda

Opis

This book reflects changes that have occurred during the last two decades in theoretical understanding and practical implementation of magnetic techniques in materials treatment. Research and development needs, based on the current strategic thinking and on principles of sustainable development are outlined. Development of magnetic separators based on powerful permanent magnetic materials, construction of reliable superconducting separators, design of efficient eddy-current separators and industrial implementation of magnetic carriers and magnetic fluids are examples of innovative changes that have taken place during the last twenty years.
The book reflects the current technological trends and re-positions the research, development and practice of magnetic methods of material treatment in such areas as minerals beneficiation, recycling, waste treatment and biomedical and clinical applications.

Spis treści

Preface. 1: Principles of Magnetic Treatment. 1.1. Magnetic separation and innovation. 1.2. Principle of magnetic separation. 1.3. Fundamental quantities of magnetism. 1.4. Magnetic properties of materials. 1.5. Magnetic properties of minerals. 1.6. Measurement of magnetic properties. 1.7. Sources of magnetic field. 2: Review of Magnetic Separators. 2.1. Dry low-intensity magnetic separators. 2.2. Wet low-intensity drum magnetic separators. 2.3. Dry high-intensity magnetic separators. 2.4. Wet high-intensity magnetic separators. 2.5. Superconduction magnetic separators. 2.6. Laboratory magnetic separators. 2.7. Eddy-current separators. 2.8. Separators with magnetic fluids. 3: Theory of Magnetic Separation. 3.1. The forces and the equations of particle motion. 3.2. Particle motion in drum and roll separators. 3.3. Separation of particles by a suspended magnet. 3.4. High gradient magnetic separation. 3.5. Linear open gradient magnetic separation. 3.6. Magnetic flocculation. 3.7. Magnetic separation by particle rotation. 3.8. Separation in magnetic fluids. 3.9.Eddy-current separation. 4: Design of Magnetic Separators. 4.1. Introduction. 4.2. Design of circuits with permanent magnets. 4.3. Design of iron-core electromagnets. 4.4. Design of solenoid magnets. 4.5. Design of drum magnetic separators. 4.6. Design of a magnetic roll. 4.7. Design of a ferrohydrostatic separator. 5: Practical Aspects of Magnetic Methods. 5.1. Selection of magnetic separation technique. 5.2. Dry magnetic separation. 5.3. Wet magnetic separation. 5.4. Magnetic flocculation. 5.5. Demagnetization. 5.6. Separation in magnetic fluids. 5.7. Magnetism in other areas of material handling. 6: Industrial Applications. 6.1. Treatment of minerals. 6.2. Nuclear industry. 6.3. Waste water treatment. 6.4. Magnetic carrier techniques. 6.5. Magnetic carriers and separation in biosciences. 6.6. Recovery of metals from wastes. 6.7. The applications of ferrohydrostatic separation. 7: Innovation and Future Trends. 7.1. Introduction. 7.2. Science and technological innovation. 7.3. Magnetic separation and innovation. 7.4. The current status of magnetic separation technology. 7.5. What the future holds. 7.6. Research and development needs. List of Symbols. Bibliography. Index.