Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature
Scandium metal has generated a lot of interest during the past years. This is due to the various crucial applications it has found ground in and the lack of production in countries outside China and Russia. Apart from rare earth ores, scandium is present in a variety of wastes and by-products origin...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/5/864 |
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| author | Eleni Mikeli Danai Marinos Aikaterini Toli Anastasia Pilichou Efthymios Balomenos Dimitrios Panias |
| author_facet | Eleni Mikeli Danai Marinos Aikaterini Toli Anastasia Pilichou Efthymios Balomenos Dimitrios Panias |
| author_sort | Eleni Mikeli |
| collection | DOAJ |
| description | Scandium metal has generated a lot of interest during the past years. This is due to the various crucial applications it has found ground in and the lack of production in countries outside China and Russia. Apart from rare earth ores, scandium is present in a variety of wastes and by-products originating from metallurgical processes and is not currently being sufficiently valorised. One of these processes is the production of titanium dioxide, which leaves an acidic iron chloride solution with a considerably high concentration of scandium (10–140 ppm) and is currently sold as a by-product. This research aims to recover scandium without affecting the solution greatly so that it can still be resold as a by-product after the treatment. To achieve this, two commercial ion-exchange resins, VP OC 1026 and TP 260, are used in the column setup. Their breakthrough curves are plotted with mathematical modelling and compared. Results indicate that VP OC 1026 resin is the most promising for Sc extraction with a column capacity of 1.46 mg/mL, but Zr, Ti, and V coextract have high capacities, while Fe does not interfere with the adsorption. |
| first_indexed | 2024-03-10T03:25:29Z |
| format | Article |
| id | doaj.art-d990fd5345bc41069af336bec7bd1c8c |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T03:25:29Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-d990fd5345bc41069af336bec7bd1c8c2023-11-23T12:10:31ZengMDPI AGMetals2075-47012022-05-0112586410.3390/met12050864Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient TemperatureEleni Mikeli0Danai Marinos1Aikaterini Toli2Anastasia Pilichou3Efthymios Balomenos4Dimitrios Panias5Laboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens (NTUA), Heroon Polytechniou 9, 15780 Zografou, GreeceLaboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens (NTUA), Heroon Polytechniou 9, 15780 Zografou, GreeceLaboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens (NTUA), Heroon Polytechniou 9, 15780 Zografou, GreeceLaboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens (NTUA), Heroon Polytechniou 9, 15780 Zografou, GreeceMytilineos S.A, Metallurgy Business, Agios Nikolaos, 32003 Voiotia, GreeceLaboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of Athens (NTUA), Heroon Polytechniou 9, 15780 Zografou, GreeceScandium metal has generated a lot of interest during the past years. This is due to the various crucial applications it has found ground in and the lack of production in countries outside China and Russia. Apart from rare earth ores, scandium is present in a variety of wastes and by-products originating from metallurgical processes and is not currently being sufficiently valorised. One of these processes is the production of titanium dioxide, which leaves an acidic iron chloride solution with a considerably high concentration of scandium (10–140 ppm) and is currently sold as a by-product. This research aims to recover scandium without affecting the solution greatly so that it can still be resold as a by-product after the treatment. To achieve this, two commercial ion-exchange resins, VP OC 1026 and TP 260, are used in the column setup. Their breakthrough curves are plotted with mathematical modelling and compared. Results indicate that VP OC 1026 resin is the most promising for Sc extraction with a column capacity of 1.46 mg/mL, but Zr, Ti, and V coextract have high capacities, while Fe does not interfere with the adsorption.https://www.mdpi.com/2075-4701/12/5/864scandiumtitanium dioxide industryion-exchange resinsVPOC1026TP260nonlinear regression |
| spellingShingle | Eleni Mikeli Danai Marinos Aikaterini Toli Anastasia Pilichou Efthymios Balomenos Dimitrios Panias Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature Metals scandium titanium dioxide industry ion-exchange resins VPOC1026 TP260 nonlinear regression |
| title | Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature |
| title_full | Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature |
| title_fullStr | Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature |
| title_full_unstemmed | Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature |
| title_short | Use of Ion-Exchange Resins to Adsorb Scandium from Titanium Industry’s Chloride Acidic Solution at Ambient Temperature |
| title_sort | use of ion exchange resins to adsorb scandium from titanium industry s chloride acidic solution at ambient temperature |
| topic | scandium titanium dioxide industry ion-exchange resins VPOC1026 TP260 nonlinear regression |
| url | https://www.mdpi.com/2075-4701/12/5/864 |
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