Leaching Kinetics of Valuable Metals
Leaching is a primary extractive operation in hydrometallurgical processing, by which a metal of interest is transferred from naturally occurring minerals into an aqueous solution. In essence, it involves the selective dissolution of valuable minerals, where the ore, concentrate, or matte is brought...
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| التنسيق: | Online |
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| اللغة: | الإنجليزية |
| منشور في: |
MDPI - Multidisciplinary Digital Publishing Institute
2022
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| الموضوعات: | |
| الوصول للمادة أونلاين: | ONIX_20220111_9783036505480_27 |
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| _version_ | 1869522535969718272 |
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| collection | Directory of Open Access Books |
| description | Leaching is a primary extractive operation in hydrometallurgical processing, by which a metal of interest is transferred from naturally occurring minerals into an aqueous solution. In essence, it involves the selective dissolution of valuable minerals, where the ore, concentrate, or matte is brought into contact with an active chemical solution known as a leach solution. Currently, the hydrometallurgical processes have a great number of applications, not only in the mining sector—in particular, for the recovery of precious metals—but also in the environmental sector, for the recovery of toxic metals from wastes of various types, and their reuse as valuable metals, after purification. Therefore, there is an increasing need to develop novel solutions, to implement environmentally sustainable practices in the recovery of these valuable and precious metals, with particular reference to critical metals; those included in materials that are indispensable to modern life and for which an exponential increase in consumption is already a reality, or will be in a short-term perspective. For publication in this Special Issue, consideration has been given to articles that contribute to the optimization of the kinetic conditions of innovative hydrometallurgical processes—economic and of low environmental impact—applied to the recovery of valuable and critical metals. |
| format | Online |
| id | doab-20.500.12854ir-76291 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI - Multidisciplinary Digital Publishing Institute |
| publisherStr | MDPI - Multidisciplinary Digital Publishing Institute |
| record_format | ojs |
| spelling | doab-20.500.12854ir-762912024-03-27T16:34:35Z Leaching Kinetics of Valuable Metals Ubaldini, Stefano eudialyte rare earth elements dry digestion leaching neural network uranium contaminated groundwater permeable reactive barrier zero-valent iron Al-Ni alloys aluminothermic reactions reaction rate Al master alloys kinetics Hydrometallurgical processes Chalcopyrite low-pressure leaching mining waste hydrometallurgical processes leaching kinetic thiosulphate leaching electrowinning gold waste printed circuit board iodide iodine ascorbic acid precipitation thiosulfate oxidation catalysis oxygen high alumina fly ash desilication rate physical–chemical activation alumina silica mass ratio refractory gold concentrate resources depletion reducing harmful emissions arsenic nitric acid shrinking core model pyrite arsenopyrite clays nanoscale zero-valent iron groundwater wastewater geochemical characteristics pitchblende U neutral leaching ELZPA ore deposit in Pakistan n/a thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general Leaching is a primary extractive operation in hydrometallurgical processing, by which a metal of interest is transferred from naturally occurring minerals into an aqueous solution. In essence, it involves the selective dissolution of valuable minerals, where the ore, concentrate, or matte is brought into contact with an active chemical solution known as a leach solution. Currently, the hydrometallurgical processes have a great number of applications, not only in the mining sector—in particular, for the recovery of precious metals—but also in the environmental sector, for the recovery of toxic metals from wastes of various types, and their reuse as valuable metals, after purification. Therefore, there is an increasing need to develop novel solutions, to implement environmentally sustainable practices in the recovery of these valuable and precious metals, with particular reference to critical metals; those included in materials that are indispensable to modern life and for which an exponential increase in consumption is already a reality, or will be in a short-term perspective. For publication in this Special Issue, consideration has been given to articles that contribute to the optimization of the kinetic conditions of innovative hydrometallurgical processes—economic and of low environmental impact—applied to the recovery of valuable and critical metals. 2022-01-11T13:27:46Z 2022-01-11T13:27:46Z 2021 book ONIX_20220111_9783036505480_27 9783036505480 9783036505497 https://directory.doabooks.org/handle/20.500.12854/76291 eng image/jpeg Attribution 4.0 International https://mdpi.com/books/pdfview/book/3698 https://mdpi.com/books/pdfview/book/3698 MDPI - Multidisciplinary Digital Publishing Institute 10.3390/books978-3-0365-0549-7 10.3390/books978-3-0365-0549-7 46cabcaa-dd94-4bfe-87b4-55023c1b36d0 9783036505480 9783036505497 188 Basel, Switzerland open access |
| spellingShingle | eudialyte rare earth elements dry digestion leaching neural network uranium contaminated groundwater permeable reactive barrier zero-valent iron Al-Ni alloys aluminothermic reactions reaction rate Al master alloys kinetics Hydrometallurgical processes Chalcopyrite low-pressure leaching mining waste hydrometallurgical processes leaching kinetic thiosulphate leaching electrowinning gold waste printed circuit board iodide iodine ascorbic acid precipitation thiosulfate oxidation catalysis oxygen high alumina fly ash desilication rate physical–chemical activation alumina silica mass ratio refractory gold concentrate resources depletion reducing harmful emissions arsenic nitric acid shrinking core model pyrite arsenopyrite clays nanoscale zero-valent iron groundwater wastewater geochemical characteristics pitchblende U neutral leaching ELZPA ore deposit in Pakistan n/a thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general Leaching Kinetics of Valuable Metals |
| title | Leaching Kinetics of Valuable Metals |
| title_full | Leaching Kinetics of Valuable Metals |
| title_fullStr | Leaching Kinetics of Valuable Metals |
| title_full_unstemmed | Leaching Kinetics of Valuable Metals |
| title_short | Leaching Kinetics of Valuable Metals |
| title_sort | leaching kinetics of valuable metals |
| topic | eudialyte rare earth elements dry digestion leaching neural network uranium contaminated groundwater permeable reactive barrier zero-valent iron Al-Ni alloys aluminothermic reactions reaction rate Al master alloys kinetics Hydrometallurgical processes Chalcopyrite low-pressure leaching mining waste hydrometallurgical processes leaching kinetic thiosulphate leaching electrowinning gold waste printed circuit board iodide iodine ascorbic acid precipitation thiosulfate oxidation catalysis oxygen high alumina fly ash desilication rate physical–chemical activation alumina silica mass ratio refractory gold concentrate resources depletion reducing harmful emissions arsenic nitric acid shrinking core model pyrite arsenopyrite clays nanoscale zero-valent iron groundwater wastewater geochemical characteristics pitchblende U neutral leaching ELZPA ore deposit in Pakistan n/a thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general |
| topic_facet | eudialyte rare earth elements dry digestion leaching neural network uranium contaminated groundwater permeable reactive barrier zero-valent iron Al-Ni alloys aluminothermic reactions reaction rate Al master alloys kinetics Hydrometallurgical processes Chalcopyrite low-pressure leaching mining waste hydrometallurgical processes leaching kinetic thiosulphate leaching electrowinning gold waste printed circuit board iodide iodine ascorbic acid precipitation thiosulfate oxidation catalysis oxygen high alumina fly ash desilication rate physical–chemical activation alumina silica mass ratio refractory gold concentrate resources depletion reducing harmful emissions arsenic nitric acid shrinking core model pyrite arsenopyrite clays nanoscale zero-valent iron groundwater wastewater geochemical characteristics pitchblende U neutral leaching ELZPA ore deposit in Pakistan n/a thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general |
| url | ONIX_20220111_9783036505480_27 |