Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Basicidade da Escória× | Modelo do Núcleo Encolhedor× | |
|---|---|---|
| Área | Engenharia de minas | Engenharia de minas |
| Família | Process / pipeline | Process / pipeline |
| Ano de origem≠ | 1950 | 1976 |
| Autor original≠ | Pyrometallurgical Practice | Szekely, Evans, and Sohn |
| Tipo≠ | Slag composition parameter for controlling roast/smelt conditions | Reaction kinetics model for solid-fluid reactions |
| Fonte seminal≠ | Barnes, J. F., Edwards, C. C., & Sims, R. L. (2010). Copper smelting and refining: pyrometallurgical fundamentals. JOM, 52(12), 38-43. link ↗ | Szekely, J., Evans, J. W., & Sohn, H. Y. (1976). Gas-solid reactions. Academic Press, New York. link ↗ |
| Outros nomes≠ | Basicity Index, Slag Chemistry Parameter | Shrinking Unreacted Core Model, SCM, Leaching Kinetics Model |
| Relacionados | 3 | 3 |
| Resumo≠ | 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. | 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. |
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