Magnetic methods for the treatment of minerals
Author(s)
Bibliographic Information
Magnetic methods for the treatment of minerals
（Developments in mineral processing, 8）
Elsevier , Distributors for the United States and Canada, Elsevier Science Publishing Company Inc., 1987
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Note
Bibliography: p. 648-681
Includes index
Description and Table of Contents
Description
Magnetic separation is an exciting branch of technology with a wide potential in diverse branches of engineering and with equally exciting prospects for fundamental research. There is, however, a lack of communication between the engineer in the field who operates magnetic separators and the research scientist in the laboratory. Treating magnetic separation from both viewpoints, this book emphasizes those points of magnetic separation where lack of support in fundamental research is most evident. It is intended that the book will help develop a greater overlap between the activities of the engineer and the scientist, promote the application of basic physical phenomena in engineering practice, and gain the acceptance of the industry.
Table of Contents
Introduction. I. The Physical Principles of Magnetic Separation. Principles of magnetic beneficiation. Magnetic units. Magnetic properties of minerals. Generation of magnetic field in magnetic separator. Measurement of magnetic properties. II. Review of Magnetic Separation Techniques. Dry low-intensity magnetic separators. Wet low-intensity magnetic separators. High-intensity magnetic separators. Wet high-intensity high-gradient magnetic separators. Superconducting magnetic separators. Laboratory magnetic separators. III. Theory of High-Gradient Magnetic Separation. Theory of single-wire particle capture. Theory of capture in multi-wire matrices. Particle capture by ferromagnetic spheres. Particle capture in a real matrix. Magnetic flocculation. Open-gradient magnetic separation. IV. Practical Aspects of Magnetic Separation. Selection of magnetic separation technique. Dry magnetic separation. Wet magnetic separation. Magnetic field. Matrix. Flow velocity. Pulp density. Feed rate. Rinse and flush water. The effect of particle size. The speed of rotation. Pre-treatment of pulp. The selectivity of separation. Comparison of wet high-gradient magnetic separators. Magnetic flocculation. V. Industrial Applications of High-Gradient Magnetic Separation. Minerals treatment. The magnetic beneficiation of coal. The magnetic beneficiation of fly ash. The application of HGMS to waste water treatment. The application of HGMS in nuclear industry. Magnetic filtration of gases. VI. The Economics of Magnetic Separation. Energy costs. The cost of magnetic separators and their economic comparison. The economics of mineral treatment by magnetic separation. Appendices: List of symbols. List of abbreviations. Values of physical constants. Conversion of units. Definitions of derived units. List of selected companies manufacturing magnets, magnetic separators, magnetic measuring instruments and matrices. Bibliography. Subject Index.
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