Production of rare-earth oxides from Eskişehir-Beylikova complex ores
In this study, the production technology of barite, fluorite, rare-earth elements, and thorium-bearing rare-earth oxides from the Eskişehir-Beylikova were investigated, and the processes that can be used in the production of thorium-free mixed rare earth oxides were tested. The applied processes are...
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| Format: | Article |
| Language: | English |
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General Directorate of Mineral Research and Exploration
2023-04-01
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| Series: | Bulletin of the Mineral Research and Exploration |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/2671237 |
| _version_ | 1797826585454182400 |
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| author | Ayşe Erdem Çiğdem Kara Hasan Akçay Hüseyin Eren Obuz Haydar Güneş |
| author_facet | Ayşe Erdem Çiğdem Kara Hasan Akçay Hüseyin Eren Obuz Haydar Güneş |
| author_sort | Ayşe Erdem |
| collection | DOAJ |
| description | In this study, the production technology of barite, fluorite, rare-earth elements, and thorium-bearing rare-earth oxides from the Eskişehir-Beylikova were investigated, and the processes that can be used in the production of thorium-free mixed rare earth oxides were tested. The applied processes are roasting, leaching, solvent extraction and precipitation methods, respectively. After all studies, the optimum roasting temperature and roasting duration are determined as 600 °C and 1 hour. In the extraction stage, the highest leaching efficiency is achieved with 5 M HCl, 1-hour leaching duration, 1/3 solid/liquid ratio and 35 °C leaching temperature. While methyl tri C8-C10 ammonium chloride (Adogen 464) is used for the removal of iron from produced solution, di-(2-ethylhexyl) phosphoric acid (D2EHPA) is used for the removal of thorium. As a result of solvent extraction studies, the solution containing rare earth elements is precipitated under optimum conditions. After precipitation, the product contains 99.65% rare earth oxides. |
| first_indexed | 2024-04-09T12:34:45Z |
| format | Article |
| id | doaj.art-d7131a820675435da33c7876166ab163 |
| institution | Directory Open Access Journal |
| issn | 0026-4563 |
| language | English |
| last_indexed | 2024-04-09T12:34:45Z |
| publishDate | 2023-04-01 |
| publisher | General Directorate of Mineral Research and Exploration |
| record_format | Article |
| series | Bulletin of the Mineral Research and Exploration |
| spelling | doaj.art-d7131a820675435da33c7876166ab1632023-05-15T17:58:03ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632023-04-01170170879710.19111/bulletinofmre.118022276Production of rare-earth oxides from Eskişehir-Beylikova complex oresAyşe Erdem0Çiğdem Kara1Hasan Akçay2Hüseyin Eren Obuz3Haydar Güneş4Maden Tetkik ve Arama Genel MüdürlüğüMaden Tetkik ve Arama Genel MüdürlüğüMaden Tetkik ve Arama Genel MüdürlüğüMaden Tetkik ve Arama Genel MüdürlüğüMaden Tetkik ve Arama Genel MüdürlüğüIn this study, the production technology of barite, fluorite, rare-earth elements, and thorium-bearing rare-earth oxides from the Eskişehir-Beylikova were investigated, and the processes that can be used in the production of thorium-free mixed rare earth oxides were tested. The applied processes are roasting, leaching, solvent extraction and precipitation methods, respectively. After all studies, the optimum roasting temperature and roasting duration are determined as 600 °C and 1 hour. In the extraction stage, the highest leaching efficiency is achieved with 5 M HCl, 1-hour leaching duration, 1/3 solid/liquid ratio and 35 °C leaching temperature. While methyl tri C8-C10 ammonium chloride (Adogen 464) is used for the removal of iron from produced solution, di-(2-ethylhexyl) phosphoric acid (D2EHPA) is used for the removal of thorium. As a result of solvent extraction studies, the solution containing rare earth elements is precipitated under optimum conditions. After precipitation, the product contains 99.65% rare earth oxides.https://dergipark.org.tr/tr/download/article-file/2671237rare earth elementsroastingleachingsolvent extractionprecipitation |
| spellingShingle | Ayşe Erdem Çiğdem Kara Hasan Akçay Hüseyin Eren Obuz Haydar Güneş Production of rare-earth oxides from Eskişehir-Beylikova complex ores Bulletin of the Mineral Research and Exploration rare earth elements roasting leaching solvent extraction precipitation |
| title | Production of rare-earth oxides from Eskişehir-Beylikova complex ores |
| title_full | Production of rare-earth oxides from Eskişehir-Beylikova complex ores |
| title_fullStr | Production of rare-earth oxides from Eskişehir-Beylikova complex ores |
| title_full_unstemmed | Production of rare-earth oxides from Eskişehir-Beylikova complex ores |
| title_short | Production of rare-earth oxides from Eskişehir-Beylikova complex ores |
| title_sort | production of rare earth oxides from eskisehir beylikova complex ores |
| topic | rare earth elements roasting leaching solvent extraction precipitation |
| url | https://dergipark.org.tr/tr/download/article-file/2671237 |
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