Leaching of rare earths from fine-grained zirconosilicate ore
© 2016 The Chinese Society of Rare Earths. Leaching of rare earths Y, La and Ce by sulphuric acid from fine-grained zirconosilicate ore was investigated using Taguchi method of experimental design. An orthogonal array of L8, 27 which denotes 7 factors at 2 levels was chosen to consider the various f...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/16001 |
| _version_ | 1848749049190023168 |
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| author | Lim, Hazel Ibana, Don Eksteen, Jacques |
| author_facet | Lim, Hazel Ibana, Don Eksteen, Jacques |
| author_sort | Lim, Hazel |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 The Chinese Society of Rare Earths. Leaching of rare earths Y, La and Ce by sulphuric acid from fine-grained zirconosilicate ore was investigated using Taguchi method of experimental design. An orthogonal array of L8, 27 which denotes 7 factors at 2 levels was chosen to consider the various factors relevant to the leaching process: baking time, baking temperature, acid dosage, leaching time, leaching temperature, grind size and dilution. Statistical analysis showed that sulphation baking was a significant step for the leaching of rare earths from the whole-of-ore and optimized leaching of rare earths involved the following condition: baking for 3 h at 320 °C at 3.2 g acid/g ore acid dosage followed by water leaching at 20 °C for 1 h and dilution of 20 mL water/g ore using 300 um grind size. The effect of each leaching factor was also discussed. |
| first_indexed | 2025-11-14T07:14:45Z |
| format | Journal Article |
| id | curtin-20.500.11937-16001 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:14:45Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-160012018-09-04T00:53:56Z Leaching of rare earths from fine-grained zirconosilicate ore Lim, Hazel Ibana, Don Eksteen, Jacques © 2016 The Chinese Society of Rare Earths. Leaching of rare earths Y, La and Ce by sulphuric acid from fine-grained zirconosilicate ore was investigated using Taguchi method of experimental design. An orthogonal array of L8, 27 which denotes 7 factors at 2 levels was chosen to consider the various factors relevant to the leaching process: baking time, baking temperature, acid dosage, leaching time, leaching temperature, grind size and dilution. Statistical analysis showed that sulphation baking was a significant step for the leaching of rare earths from the whole-of-ore and optimized leaching of rare earths involved the following condition: baking for 3 h at 320 °C at 3.2 g acid/g ore acid dosage followed by water leaching at 20 °C for 1 h and dilution of 20 mL water/g ore using 300 um grind size. The effect of each leaching factor was also discussed. 2016 Journal Article http://hdl.handle.net/20.500.11937/16001 10.1016/S1002-0721(16)60114-X fulltext |
| spellingShingle | Lim, Hazel Ibana, Don Eksteen, Jacques Leaching of rare earths from fine-grained zirconosilicate ore |
| title | Leaching of rare earths from fine-grained zirconosilicate ore |
| title_full | Leaching of rare earths from fine-grained zirconosilicate ore |
| title_fullStr | Leaching of rare earths from fine-grained zirconosilicate ore |
| title_full_unstemmed | Leaching of rare earths from fine-grained zirconosilicate ore |
| title_short | Leaching of rare earths from fine-grained zirconosilicate ore |
| title_sort | leaching of rare earths from fine-grained zirconosilicate ore |
| url | http://hdl.handle.net/20.500.11937/16001 |