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| Indice de travail de Bond× | Cinétique de flottation× | |
|---|---|---|
| Domaine | Génie minier | Génie minier |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1952 | 1935 |
| Auteur d'origine≠ | Fred C. Bond | Garcia-Zuniga |
| Type≠ | Empirical method for grinding energy estimation | First-order kinetic model for flotation recovery |
| Source fondatrice≠ | Bond, F. C. (1952). The third theory of comminution. Transactions of the American Institute of Mining and Metallurgical Engineers, 193, 484-494. link ↗ | Garcia-Zuniga, H. (1935). Uber eine neue Methode, zur Berechnung der Flotationsausbeute. Zeitschrift fur Praktische Geologie, 43(2), 12-19. link ↗ |
| Alias | Bond Work Index, BWI, Bond Index Test | Batch Flotation Model, Flotation Rate Constants, Kinetic Flotation Analysis |
| Apparentées | 3 | 3 |
| Résumé≠ | The Bond Work Index, introduced by Fred C. Bond in 1952, is an empirical parameter that characterizes the resistance of an ore to grinding in a tumbling mill. It is defined as the kilowatt-hours per short ton (kWh/st) of electrical energy required to reduce a coarse ore from theoretically infinite size to 80% passing 100 micrometers. The Bond Index is foundational in mineral processing plant design and cost estimation worldwide. | Flotation kinetics is the study of how recovery of minerals from ore changes over time during flotation. The Garcia-Zuniga model, introduced in 1935, describes recovery as a first-order kinetic process with rate constant k and maximum recoverable fraction R∞. This simple model underpins flotation cell design and process optimization, enabling engineers to predict flotation performance from batch tests and scale results to industrial circuits. |
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