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Diagrami Ellingham×Elektrofitimi×Baziciteti i Skorjes×
FushaInxhinieri minerareInxhinieri minerareInxhinieri minerare
FamiljaProcess / pipelineProcess / pipelineProcess / pipeline
Viti i origjinës194418901950
KrijuesiHarold Jeffrey Torreyson EllinghamIndustrial Electrometallurgy PracticePyrometallurgical Practice
LlojiGibbs free energy diagram for high-temperature reactionsElectrochemical metal extraction and purificationSlag composition parameter for controlling roast/smelt conditions
Burimi themeluesEllingham, 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 ↗Barnes, J. F., Edwards, C. C., & Sims, R. L. (2010). Copper smelting and refining: pyrometallurgical fundamentals. JOM, 52(12), 38-43. link ↗
Emërtime të tjeraGibbs Free Energy Diagram, High-Temperature Reduction DiagramElectrodeposition, Electrolytic ExtractionBasicity Index, Slag Chemistry Parameter
Të lidhura333
PërmbledhjaThe 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.Slag basicity is a measure of the composition of slag formed during smelting and roasting operations. It is typically expressed as the ratio of basic oxides (CaO, MgO) to acidic oxides (SiO2). Basicity controls slag fluidity, viscosity, and reactivity, directly affecting metal recovery, processing temperature, and product quality. It is a critical parameter in copper, nickel, and lead smelting.
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ScholarGateKrahasoni metodat: Ellingham Diagram · Electrowinning · Slag Basicity. Marrë më 2026-06-19 nga https://scholargate.app/sq/compare