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Elinghamas diagramma×Elektroieguve×Sārmainība (Slag Basicity)×
NozareKalnrūpniecības inženierijaKalnrūpniecības inženierijaKalnrūpniecības inženierija
SaimeProcess / pipelineProcess / pipelineProcess / pipeline
Izcelsmes gads194418901950
AutorsHarold Jeffrey Torreyson EllinghamIndustrial Electrometallurgy PracticePyrometallurgical Practice
TipsGibbs free energy diagram for high-temperature reactionsElectrochemical metal extraction and purificationSlag composition parameter for controlling roast/smelt conditions
PirmavotsEllingham, 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 ↗
Citi nosaukumiGibbs Free Energy Diagram, High-Temperature Reduction DiagramElectrodeposition, Electrolytic ExtractionBasicity Index, Slag Chemistry Parameter
Saistītās333
KopsavilkumsThe 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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ScholarGateSalīdzināt metodes: Ellingham Diagram · Electrowinning · Slag Basicity. Izgūts 2026-06-18 no https://scholargate.app/lv/compare