Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores
It is a well-known fact that the value of the Bond work index (<i>w<sub>i</sub></i>) 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), rang...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/6/970 |
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| author | Gloria G. García Josep Oliva Eduard Guasch Hernán Anticoi Alfredo L. Coello-Velázquez Juan M. Menéndez-Aguado |
| author_facet | Gloria G. García Josep Oliva Eduard Guasch Hernán Anticoi Alfredo L. Coello-Velázquez Juan M. Menéndez-Aguado |
| author_sort | Gloria G. García |
| collection | DOAJ |
| description | It is a well-known fact that the value of the Bond work index (<i>w<sub>i</sub></i>) 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 <i>w<sub>i</sub></i> and grinding size did not show a clear correlation, while the grindability index (<i>gpr</i>) 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. |
| first_indexed | 2024-03-10T10:19:37Z |
| format | Article |
| id | doaj.art-7d25f8dee2a4493cb173c4b285283c10 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T10:19:37Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-7d25f8dee2a4493cb173c4b285283c102023-11-22T00:33:21ZengMDPI AGMetals2075-47012021-06-0111697010.3390/met11060970Variability Study of Bond Work Index and Grindability Index on Various Critical Metal OresGloria G. García0Josep Oliva1Eduard Guasch2Hernán Anticoi3Alfredo L. Coello-Velázquez4Juan M. Menéndez-Aguado5Escuela Politécnica de Mieres, University of Oviedo, Gonzalo Gutiérrez Quirós, 33600 Mieres, SpainDepartament D’Enginyeria Minera, Industrial i TIC, Universitat Politècnica De Catalunya Barcelona Tech, Av. Bases De Manresa, 08242 Manresa, SpainDepartament D’Enginyeria Minera, Industrial i TIC, Universitat Politècnica De Catalunya Barcelona Tech, Av. Bases De Manresa, 08242 Manresa, SpainEscuela Politecnica de Ingenieria de Minas y Energia, Universidad de Cantabria, Ronda Rufino Peón, 39316 Torrrelavega, SpainCETAM, Universidad de Moa Dr. Antonio Núñez Jiménez, Moa 83300, CubaEscuela Politécnica de Mieres, University of Oviedo, Gonzalo Gutiérrez Quirós, 33600 Mieres, SpainIt is a well-known fact that the value of the Bond work index (<i>w<sub>i</sub></i>) 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 <i>w<sub>i</sub></i> and grinding size did not show a clear correlation, while the grindability index (<i>gpr</i>) 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.https://www.mdpi.com/2075-4701/11/6/970grindabilitycomminutionBond work index |
| spellingShingle | Gloria G. García Josep Oliva Eduard Guasch Hernán Anticoi Alfredo L. Coello-Velázquez Juan M. Menéndez-Aguado Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores Metals grindability comminution Bond work index |
| title | Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores |
| title_full | Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores |
| title_fullStr | Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores |
| title_full_unstemmed | Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores |
| title_short | Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores |
| title_sort | variability study of bond work index and grindability index on various critical metal ores |
| topic | grindability comminution Bond work index |
| url | https://www.mdpi.com/2075-4701/11/6/970 |
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