Nanofiltration-Enhanced Solvent Extraction of Scandium from TiO2 Acid Waste

Hedwig, Sebastian and Yagmurlu, Bengi and Huang, Danyu and von Arx, Oliver and Dittrich, Carsten and Constable, Edwin C. and Friedrich, Bernd and Lenz, Markus. (2022) Nanofiltration-Enhanced Solvent Extraction of Scandium from TiO2 Acid Waste. ACS Sustainable Chemistry and Engineering, 10 (18). pp. 6063-6071.

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Official URL: https://edoc.unibas.ch/89668/

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Scandium is a critical raw material with a technological potential to reduce transportation costs and CO2 emissions. However, global supply and market adoption are crucially impaired by the lack of high-grade Sc ores and recovery strategies. A tandem nanofiltration solvent extraction route is demonstrated to enable effective Sc recovery from real-world acid waste from the chloride TiO2 production route. The process involving several filtration stages, solvent extraction, and precipitation was optimized, ultimately producing >97% pure (NH4)(3)ScF6.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Former Organization Units Chemistry > Anorganische Chemie (Constable)
UniBasel Contributors:Constable, Edwin Charles
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:27 Apr 2023 01:30
Deposited On:25 Aug 2022 07:34

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