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Ellinghamdiagram×Elektrolytische winning×
VakgebiedMijnbouwkundeMijnbouwkunde
FamilieProcess / pipelineProcess / pipeline
Jaar van ontstaan19441890
GrondleggerHarold Jeffrey Torreyson EllinghamIndustrial Electrometallurgy Practice
TypeGibbs free energy diagram for high-temperature reactionsElectrochemical metal extraction and purification
Oorspronkelijke bronEllingham, H. J. T. (1944). Reducibility of oxides and sulfides. Journal of the Society of Chemical Industry, 63(5), 125-160. link ↗Habashi, F. (2011). Electrometallurgy: principles, processes and materials. Metallurgical Transactions, 29(7), 1569-1589. link ↗
AliassenGibbs Free Energy Diagram, High-Temperature Reduction DiagramElectrodeposition, Electrolytic Extraction
Verwant33
SamenvattingThe Ellingham Diagram, introduced by Harold Ellingham in 1944, is a graphical representation of the Gibbs free energy change for oxide formation and reduction as a function of temperature. It is an essential tool for predicting the thermodynamic feasibility of ore reduction and selecting appropriate reducing agents and temperatures for smelting and roasting operations.Electrowinning is an electrochemical process that extracts and refines metals from dilute leaching solutions by passing electric current through an electrolytic cell. Metal ions migrate to the cathode (negative electrode) and are reduced to pure metal, while impurities remain in solution. This process is essential for copper, zinc, cobalt, nickel, and gold refining, producing metals of exceptional purity.
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ScholarGateMethoden vergelijken: Ellingham Diagram · Electrowinning. Geraadpleegd op 2026-06-18 via https://scholargate.app/nl/compare