Application of thermo-electrochemistry to simultaneous leaching of sphalerite and MnO2

Wang, S. F.; Zheng, Fang; Tai, Y. F.

doi:10.1007/s01097-006-7664-7

Cited by 11 publications

(7 citation statements)

References 5 publications

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“…This will synergistically leach the main metal, and this destruction of solid metals and minerals can proceed spontaneously. 102 Electrochemical corrosion is an electrochemical process that involves the movement of charges between the electron-conducting and ion-conducting phases rather than a merely chemical reaction. A metal (or alloy) subjected to corrosion has at least two simultaneous electrode reactions on its surface, one of which is the dissolution of the metal anode, and the other is the reduction of the oxide (also called depolarized material).…”

Section: Basis Of Corrosion Cellsmentioning

confidence: 99%

Bioleaching of oceanic manganese nodules: Current progress and future prospects

Xue

Feng

et al. 2023

Asia-Pacific J Chem Eng

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The extraction of manganese elements and other strategic elements from oceanic manganese nodules has become a strategic decision to ensure the security of global metal resources and the high‐quality green development of metal resource processing and metallurgy industry due to the gradual depletion of high‐quality terrestrial metal resources and the increase of difficult‐to‐select and difficult‐to‐smelt deposits. In order to achieve the enrichment and separation of diverse elements within oceanic manganese nodules, it is imperative to initiate chemical reactions that facilitate the breakdown of complex oxides, particularly manganese dioxide. Bioleaching is a viable treatment option for oceanic manganese nodules with low operating costs and environmental damage. However, the mechanism of oceanic manganese nodules bioleaching is not fully studied, and the prospect of technology development is uncertain. We have reviewed five influencing factors on bioleaching of oceanic manganese nodules: mineralogical characteristics, chemical reaction equilibrium, thermodynamic characteristics, microbial properties, and operational variables. It then makes new development recommendations and technological system suggestions for the future improvement of oceanic manganese nodule bioleaching, primarily focusing on the development of new technologies for challenging to select and difficult to smelt ores, the practicality of strategic energy metal development, the cell design and its materials revolution, environmental protection and management, and all‐round resource utilization. Solving the above critical technical issues will boost the high‐quality development of metal industry and environmental protection.

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Section: Basis Of Corrosion Cellsmentioning

confidence: 99%

Bioleaching of oceanic manganese nodules: Current progress and future prospects

Xue

Feng

et al. 2023

Asia-Pacific J Chem Eng

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“…Leaching experiments have done on such the minerals as Cu 2 S, Ni 3 S 2 , PbS, FeS and ZnS [47]. The researches of the power generation leaching also concern with the simultaneous leaching of two minerals, for example, Cu 2 S or other metallic sulfide like Ni 3 S 2 , PbS, FeS or ZnS (as anode) and MnO 2 (as cathode) [48]. The curves of electric currents-potentials-electric power for the power generation leaching for some metallic sulfides are shown in Fig.5, from where it can be seen that the resulting currents and the electric power obviously increase with improvement of the conditions of leaching.…”

Section: Application To Hydrometallurgymentioning

confidence: 99%

Theory and Application of Thermoelectrochemistry

Zheng¹

2011

Thermodynamics - Physical Chemistry of Aqueous Systems

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“…In order to enhance the leaching rate, the sulfide ores were subjected to mechanical activation before the electrogenerative leaching process [62,63]. Instead of producing pollutants such as sulfur dioxide and hydrogen sulfide as in traditional leaching processes, the oxidation of sulfide ores using electrogenerative processes produced elemental sulfur.…”

Section: Galenamentioning

confidence: 99%

Electrogenerative Processes for Environmental Applications

Yap

Mohamed²

2008

CLEAN Soil Air Water

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The applications of electrogenerative processes which could be an alternative to current environmental treatment technologies are briefly reviewed. This process does not require an external supply of energy due to the spontaneous chemical reaction that takes place in the reactor and generates an external flow of current as a by-product. The operation is attractive in reducing operational costs, especially when dealing with solutions of low ion concentrations. Electrogenerative reactors which can be operated in various configurations and their designs are described. The rate and selectivity for particular reactions can be controlled by varying electrode potentials and with suitable choices of electrodes. This review paper aims to invoke the interest of industries to consider the merits of electrogenerative processes as a replacement for the current processes and practices. The applications of electrogenerative processes to the removal and recovery of metal ions, electrosynthesis of organic chemicals and leaching of sulfide minerals are discussed.

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Application of thermo-electrochemistry to simultaneous leaching of sphalerite and MnO2

Cited by 11 publications

References 5 publications

Bioleaching of oceanic manganese nodules: Current progress and future prospects

Bioleaching of oceanic manganese nodules: Current progress and future prospects

Theory and Application of Thermoelectrochemistry

Electrogenerative Processes for Environmental Applications

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