Methods of Ore Pretreatment for Comminution Energy Reduction
The comminution of ores consumes a high portion of energy. Therefore, different pretreatment methods of ores prior to their comminution are considered to reduce this energy. However, the results of pretreatment methods and their technological development are scattered in literature. Hence, this pape...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Minerals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-163X/10/5/423 |
| _version_ | 1797568411123843072 |
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| author | Sefiu O. Adewuyi Hussin A. M. Ahmed Haitham M. A. Ahmed |
| author_facet | Sefiu O. Adewuyi Hussin A. M. Ahmed Haitham M. A. Ahmed |
| author_sort | Sefiu O. Adewuyi |
| collection | DOAJ |
| description | The comminution of ores consumes a high portion of energy. Therefore, different pretreatment methods of ores prior to their comminution are considered to reduce this energy. However, the results of pretreatment methods and their technological development are scattered in literature. Hence, this paper aims at collating the different ore pretreatment methods with their applications and results from published articles, conference proceedings, and verified reports. It was found that pretreatment methods include thermal (via oven, microwave, or radiofrequency), chemical additive, electric, magnetic, ultrasonic, and bio-milling. Results showed that the chemical pretreatment method has been used at an industrial scale since 1930, mainly in cement production. The microwave pretreatment results showed positive improvements at pilot scale mining applications in 2017. The results of ore pretreatment using electric and ultrasonic methods showed up to 24% and 66% improvement in energy consumption, respectively. The former and the latter have been piloted for gold and carbonate ore, respectively. Findings also showed that magnetic, radiofrequency, and bio-milling methods have not led to significant reductions in comminution energy. Based on energy reduction, safety, costs, stage of application, and downstream benefits, microwave and electrical pretreatment methods may be focused for applications in the mining industry. |
| first_indexed | 2024-03-10T19:56:34Z |
| format | Article |
| id | doaj.art-91cd005d787041bb8405fd5a72f97088 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T19:56:34Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-91cd005d787041bb8405fd5a72f970882023-11-19T23:56:00ZengMDPI AGMinerals2075-163X2020-05-0110542310.3390/min10050423Methods of Ore Pretreatment for Comminution Energy ReductionSefiu O. Adewuyi0Hussin A. M. Ahmed1Haitham M. A. Ahmed2Mining Engineering Department, King Abdulaziz University Jeddah, Jeddah 21589, Saudi ArabiaMining Engineering Department, King Abdulaziz University Jeddah, Jeddah 21589, Saudi ArabiaMining Engineering Department, King Abdulaziz University Jeddah, Jeddah 21589, Saudi ArabiaThe comminution of ores consumes a high portion of energy. Therefore, different pretreatment methods of ores prior to their comminution are considered to reduce this energy. However, the results of pretreatment methods and their technological development are scattered in literature. Hence, this paper aims at collating the different ore pretreatment methods with their applications and results from published articles, conference proceedings, and verified reports. It was found that pretreatment methods include thermal (via oven, microwave, or radiofrequency), chemical additive, electric, magnetic, ultrasonic, and bio-milling. Results showed that the chemical pretreatment method has been used at an industrial scale since 1930, mainly in cement production. The microwave pretreatment results showed positive improvements at pilot scale mining applications in 2017. The results of ore pretreatment using electric and ultrasonic methods showed up to 24% and 66% improvement in energy consumption, respectively. The former and the latter have been piloted for gold and carbonate ore, respectively. Findings also showed that magnetic, radiofrequency, and bio-milling methods have not led to significant reductions in comminution energy. Based on energy reduction, safety, costs, stage of application, and downstream benefits, microwave and electrical pretreatment methods may be focused for applications in the mining industry.https://www.mdpi.com/2075-163X/10/5/423mining operationore millingore grindingrockliberation |
| spellingShingle | Sefiu O. Adewuyi Hussin A. M. Ahmed Haitham M. A. Ahmed Methods of Ore Pretreatment for Comminution Energy Reduction Minerals mining operation ore milling ore grinding rock liberation |
| title | Methods of Ore Pretreatment for Comminution Energy Reduction |
| title_full | Methods of Ore Pretreatment for Comminution Energy Reduction |
| title_fullStr | Methods of Ore Pretreatment for Comminution Energy Reduction |
| title_full_unstemmed | Methods of Ore Pretreatment for Comminution Energy Reduction |
| title_short | Methods of Ore Pretreatment for Comminution Energy Reduction |
| title_sort | methods of ore pretreatment for comminution energy reduction |
| topic | mining operation ore milling ore grinding rock liberation |
| url | https://www.mdpi.com/2075-163X/10/5/423 |
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