Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Modelo do Núcleo Encolhedor× | Basicidade da Escória× | |
|---|---|---|
| Área | Engenharia de minas | Engenharia de minas |
| Família | Process / pipeline | Process / pipeline |
| Ano de origem≠ | 1976 | 1950 |
| Autor original≠ | Szekely, Evans, and Sohn | Pyrometallurgical Practice |
| Tipo≠ | Reaction kinetics model for solid-fluid reactions | Slag composition parameter for controlling roast/smelt conditions |
| Fonte seminal≠ | Szekely, J., Evans, J. W., & Sohn, H. Y. (1976). Gas-solid reactions. Academic Press, New York. link ↗ | Barnes, J. F., Edwards, C. C., & Sims, R. L. (2010). Copper smelting and refining: pyrometallurgical fundamentals. JOM, 52(12), 38-43. link ↗ |
| Outros nomes≠ | Shrinking Unreacted Core Model, SCM, Leaching Kinetics Model | Basicity Index, Slag Chemistry Parameter |
| Relacionados | 3 | 3 |
| Resumo≠ | The Shrinking Core Model, formalized by Szekely, Evans, and Sohn in 1976, describes the kinetics of chemical reactions between solid ore particles and surrounding fluids (leaching solutions, roasting gases). As the reaction proceeds from the particle surface inward, an unreacted core shrinks while products accumulate in a product layer. The model enables prediction of leaching times and optimization of hydrometallurgical processes. | 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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