Adsorbophysical characteristics of precious metals in comparison with other minerals |
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| Affiliation: | 1. Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), Northeastern University, Shenyang 110819, China;2. College of Sciences, Northeastern University, Shenyang 110819, China;3. Thermal and Flow Engineering Laboratory, Åbo Akademi University, Åbo/Turku 20500, Finland;1. College of Mechanics and Materials, Hohai University, Nanjing, 210000, China;2. College of Science, Hohai University, Nanjing, 210000, China;3. College of Materials Science and Engineering, Southeast University, Nanjing, 211189, China;4. College of Materials Engineering, Nanjing Institute of Technology, Nanjing, 211167, China;5. College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, China;1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, People’s Republic of China;2. Technical Service Center for Vocational Education, National University of Defense Technology, Changsha, Hunan 410073, People’s Republic of China;1. Dipartimento di Chimica, Università di Torino, Torino, Italy;2. Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy;3. Istituto Italiano di Tecnologia, Center for Sustainable Future Technologies, Torino, Italy |
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| Abstract: | The effectiveness of ore enrichment is often determined by the surface properties of the particles in the ore, rather than by other properties. The surfaces of fine minerals in ores are characterized by specific physical and chemical properties.The surfaces––natural or formed as a result of processing of the ore (splitting, refinement, washing etc)––possess characteristics that can be used as the basis for various enrichment methods: e.g. flotation utilizes wettability and adsorptive capacity of particles. This approach can also be applied to the physical methods of ore enrichment. Significant achievements on the technical and theoretical aspects of fine mineral surfaces have been made in recent years. For example, new ideas have been developed, concerning the possibilities of integrating the zonal theory in physics with the theory of adsorbtion in the language of diagram interaction and boundary orbitals. This allows evaluation of physical methods of enrichment from a new perspective. In this paper, the main adsorbophysical characteristics of precious metals are compared with other minerals, and the basis of the adsorbophysical separating methods are discussed. |
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