Mineral Liberation and Particle Breakage in Stirred Mills
In this paper, the study of particle breakage mode versus mill operating parameters is addressed. Stirred mills grinding modes are mainly attrition but could be manipulated to include breakage by compression or impact loading. Macro and micro analysis of particle breakage and grinding mechanisms are...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
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Canadian Institute of Mining, Metallurgy and Petroleum
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/47523 |
| _version_ | 1848757855874711552 |
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| author | Roufaill, Reem Klein, B. |
| author2 | Gomez, C.O. |
| author_facet | Gomez, C.O. Roufaill, Reem Klein, B. |
| author_sort | Roufaill, Reem |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, the study of particle breakage mode versus mill operating parameters is addressed. Stirred mills grinding modes are mainly attrition but could be manipulated to include breakage by compression or impact loading. Macro and micro analysis of particle breakage and grinding mechanisms are correlated. Macro analyses convey information that relates grinding mechanism to particle size and shape. Micro analysis on the other hand relates the particle breakage mode to the fracture type whether transgranular or intergranular. Intergranular particle breakage leads to higher mineral liberation compared to transgranular breakage. Similar minerals would have more homogeneous properties that convey a stronger bond compared to dissimilar, heterogeneous mineral bonds. This paper presents the results of an investigation that assesses how operating conditions can affect trans- versus inter-granular breakage. It is deduced that with the standard stirred mill operation, the breakage mode is primarily abrasion. Breakage mode is characterized using morphology analysis as a tool. Accordingly, if mill operation is controlled such that compression and impact breakage modes are imposed, then there will be a potential to impose inter-granular breakage rather than trans-granular. |
| first_indexed | 2025-11-14T09:34:44Z |
| format | Journal Article |
| id | curtin-20.500.11937-47523 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:34:44Z |
| publishDate | 2010 |
| publisher | Canadian Institute of Mining, Metallurgy and Petroleum |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-475232017-09-13T14:14:27Z Mineral Liberation and Particle Breakage in Stirred Mills Roufaill, Reem Klein, B. Gomez, C.O. Breakage mode Grinding Intergranular Morphology Stirred mills Transgranular In this paper, the study of particle breakage mode versus mill operating parameters is addressed. Stirred mills grinding modes are mainly attrition but could be manipulated to include breakage by compression or impact loading. Macro and micro analysis of particle breakage and grinding mechanisms are correlated. Macro analyses convey information that relates grinding mechanism to particle size and shape. Micro analysis on the other hand relates the particle breakage mode to the fracture type whether transgranular or intergranular. Intergranular particle breakage leads to higher mineral liberation compared to transgranular breakage. Similar minerals would have more homogeneous properties that convey a stronger bond compared to dissimilar, heterogeneous mineral bonds. This paper presents the results of an investigation that assesses how operating conditions can affect trans- versus inter-granular breakage. It is deduced that with the standard stirred mill operation, the breakage mode is primarily abrasion. Breakage mode is characterized using morphology analysis as a tool. Accordingly, if mill operation is controlled such that compression and impact breakage modes are imposed, then there will be a potential to impose inter-granular breakage rather than trans-granular. 2010 Journal Article http://hdl.handle.net/20.500.11937/47523 10.1179/cmq.2010.49.4.419 Canadian Institute of Mining, Metallurgy and Petroleum restricted |
| spellingShingle | Breakage mode Grinding Intergranular Morphology Stirred mills Transgranular Roufaill, Reem Klein, B. Mineral Liberation and Particle Breakage in Stirred Mills |
| title | Mineral Liberation and Particle Breakage in Stirred Mills |
| title_full | Mineral Liberation and Particle Breakage in Stirred Mills |
| title_fullStr | Mineral Liberation and Particle Breakage in Stirred Mills |
| title_full_unstemmed | Mineral Liberation and Particle Breakage in Stirred Mills |
| title_short | Mineral Liberation and Particle Breakage in Stirred Mills |
| title_sort | mineral liberation and particle breakage in stirred mills |
| topic | Breakage mode Grinding Intergranular Morphology Stirred mills Transgranular |
| url | http://hdl.handle.net/20.500.11937/47523 |