Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation
Recovery and grade are the two crucial performance parameters commonly used in mineral processing plant operations. These two parameters are interdependent. An increase in recovery would result in a decreased product grade and vice versa. The present study enumerates concentration efficiency (CE),wh...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/9/1095 |
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| author | Aspari Kumara Swamy Suresh Nikkam Sharath Kumar Palthur |
| author_facet | Aspari Kumara Swamy Suresh Nikkam Sharath Kumar Palthur |
| author_sort | Aspari Kumara Swamy |
| collection | DOAJ |
| description | Recovery and grade are the two crucial performance parameters commonly used in mineral processing plant operations. These two parameters are interdependent. An increase in recovery would result in a decreased product grade and vice versa. The present study enumerates concentration efficiency (CE),which can be adopted exclusively for processing low-grade hematite ore by WHIMS—the reverse flotation route to produce a pellet grade concentrate. In this study, the ore’s amenability by wet high-intensity magnetic separation followed by the reverse flotation of a magnetic concentrate route is investigated on BHQ samples of the Sandur schist belt (Kumaraswamy hills), India, after its characterization by microscopic and XRD studies. Dodecyl amine acetate was used as a collector to float siliceous gangue while depressing hematite using the freshly synthesized caustic starch as a depressant. The separation efficiency of the flotation was evaluated by estimating the grade, recovery, and concentration efficiency. The WHIMS conducted using the feed with the particle size minus 106 µm (d<sub>80</sub> = 82 µm) followed by reverse flotation produced a pellet grade concentrate assaying 64.60% Fe, a 0.32 alumina-to-silica ratio with 60.4% Fe recovery, and a yield of 37.4% with 79.0% concentration separation efficiency. |
| first_indexed | 2024-03-09T23:04:47Z |
| format | Article |
| id | doaj.art-41c87ef5302f4736aee0d4eda3479179 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T23:04:47Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-41c87ef5302f4736aee0d4eda34791792023-11-23T17:55:23ZengMDPI AGMinerals2075-163X2022-08-01129109510.3390/min12091095Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse FlotationAspari Kumara Swamy0Suresh Nikkam1Sharath Kumar Palthur2Department of Fuel, Minerals and Metallurgical Engineering, IIT, Dhanbad 836206, IndiaDepartment of Fuel, Minerals and Metallurgical Engineering, IIT, Dhanbad 836206, IndiaDepartment of Mineral Processing, Vijayanagara Sri Krishnadevaraya University, Ballari 583105, IndiaRecovery and grade are the two crucial performance parameters commonly used in mineral processing plant operations. These two parameters are interdependent. An increase in recovery would result in a decreased product grade and vice versa. The present study enumerates concentration efficiency (CE),which can be adopted exclusively for processing low-grade hematite ore by WHIMS—the reverse flotation route to produce a pellet grade concentrate. In this study, the ore’s amenability by wet high-intensity magnetic separation followed by the reverse flotation of a magnetic concentrate route is investigated on BHQ samples of the Sandur schist belt (Kumaraswamy hills), India, after its characterization by microscopic and XRD studies. Dodecyl amine acetate was used as a collector to float siliceous gangue while depressing hematite using the freshly synthesized caustic starch as a depressant. The separation efficiency of the flotation was evaluated by estimating the grade, recovery, and concentration efficiency. The WHIMS conducted using the feed with the particle size minus 106 µm (d<sub>80</sub> = 82 µm) followed by reverse flotation produced a pellet grade concentrate assaying 64.60% Fe, a 0.32 alumina-to-silica ratio with 60.4% Fe recovery, and a yield of 37.4% with 79.0% concentration separation efficiency.https://www.mdpi.com/2075-163X/12/9/1095BHQreverse flotationconcentration efficiencybeneficiation of iron ores |
| spellingShingle | Aspari Kumara Swamy Suresh Nikkam Sharath Kumar Palthur Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation Minerals BHQ reverse flotation concentration efficiency beneficiation of iron ores |
| title | Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation |
| title_full | Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation |
| title_fullStr | Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation |
| title_full_unstemmed | Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation |
| title_short | Recovery of Hematite from Banded Hematite Quartzite of Southern India by Magnetic Separation and Reverse Flotation |
| title_sort | recovery of hematite from banded hematite quartzite of southern india by magnetic separation and reverse flotation |
| topic | BHQ reverse flotation concentration efficiency beneficiation of iron ores |
| url | https://www.mdpi.com/2075-163X/12/9/1095 |
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