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| Diagram Ellinghama× | Zasadowość żużla× | |
|---|---|---|
| Dziedzina | Inżynieria górnicza | Inżynieria górnicza |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1944 | 1950 |
| Twórca≠ | Harold Jeffrey Torreyson Ellingham | Pyrometallurgical Practice |
| Typ≠ | Gibbs free energy diagram for high-temperature reactions | Slag composition parameter for controlling roast/smelt conditions |
| Źródło pierwotne≠ | Ellingham, H. J. T. (1944). Reducibility of oxides and sulfides. Journal of the Society of Chemical Industry, 63(5), 125-160. link ↗ | Barnes, J. F., Edwards, C. C., & Sims, R. L. (2010). Copper smelting and refining: pyrometallurgical fundamentals. JOM, 52(12), 38-43. link ↗ |
| Inne nazwy | Gibbs Free Energy Diagram, High-Temperature Reduction Diagram | Basicity Index, Slag Chemistry Parameter |
| Pokrewne | 3 | 3 |
| Podsumowanie≠ | The 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. | 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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