Magnetic Techniques for the Treatment of MaterialsIn the years following the publication of Magnetic Methods for the Treatment of Minerals by Elsevier in 1987, many changes have taken place in magnetic technology. While fundamental and thorough, the above treatise re?ected pr- erences and philosophy of research and the development and application of magnetic methods as they were practiced in the second half of the last c- tury. Although demand for metals and minerals has not diminished, the d- inant drivers of the early 21st century di er signi?cantly from those of the late 20th. The priorities of nuclear power, defence, and energy-demanding and waste-generating bene?ciation of mineral resources are being replaced by those associated with technology sustainability, environmental and knowledge m- agement, recycling, and health care. Research priorities and product devel- ment of the last century cannot, therefore, satisfactorily meet criteria of the 21st century. Considerable technological progress has been achieved in areas such as - tomation, computerization, sustainable material science, laboratory and plant practices and separation equipment. New permanent magnetic materials, - vances in practical applications of superconductivity and availability of soph- ticated modelling tools have changed the technological landscape. As a result, innovation and technology transfer in magnetic technology have been rema- ably successful during the last two decades. The title of this monograph re?ects the fact that the book covers not only the application of magnetic techniques in the minerals industry, but also in recycling, environmental engineering and biomedical sciences. |
Contents
1 | 11 |
properties | 25 |
Review of Magnetic Separators | 68 |
Concurrent tank | 82 |
xi | 128 |
Theory of Magnetic Separation | 163 |
Design of Magnetic Separators | 251 |
Practical Aspects of Magnetic Methods | 319 |
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Common terms and phrases
adapted air gap apparent density applications axis belt beneficiation coil cut-point density cyclone demagnetization diamagnetic diameter drum magnetic separators drum separators e!ciency eddy-current separator efficiency electromagnet equation external magnetic field feed rate ferrite ferrite magnets ferrofluid ferrohydrostatic separator ferromagnetic ferrosilicon field gradient Figure filtration flow velocity force index function grade hematite HGMS high-gradient magnetic separators high-intensity magnetic separators ilmenite increase interaction kaolin kg/m³ low-intensity m³/kg magnetic circuit magnetic concentrate magnetic drum magnetic field strength magnetic flocculation magnetic fluids magnetic force magnetic fraction magnetic induction magnetic materials magnetic particles magnetic roll magnetic susceptibility magnetic system magnetite matrix metals minerals NdFeB netic Non-mags operating paramagnetic particle size permanent magnets plant pole tips range rare-earth rare-earth magnets recovery removal roll separators rotating saturation magnetization shown in Fig slurry solenoid steel strongly magnetic surface Table technique temperature throughput values viscosity weakly magnetic WHIMS width wire μο