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Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores

Abstract: It is a well-known fact that the value of the Bond work index (wi) for a given ore varies along with the grinding size. In this study, a variability bysis is carried out with the Bond standard grindability tests on different critical metal ores (W, Ta), ranging from coarse grinding (rod mills) to fine grinding (ball mills). The relationship between wi and grinding size did not show a clear correlation, while the grindability index (gpr) and the grinding size showed a robust correlation, fitting in all cases to a quadratic curve with a very high regression coefficient. This result suggests that, when performing correlation studies among ore grindability and rock mechanics parameters, it is advised to use the grindability index instead of the Bond work index.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Metals 2021, 11(6), 970

Editorial: MDPI

 Fecha de publicación: 17/06/2021

Nº de páginas: 11

Tipo de publicación: Artículo de Revista

 DOI: doi.org/10.3390/met11060970

ISSN: 2075-4701

Autores/as

GARCÍA, GLORIA G.

OLIVA, JOSEP

COELLO VELÁZQUEZ, ALFREDO L.

MENÉNDEZ AGUADO, JUAN M.