Scandium Recovery from Aqueous Solution by Adsorption Processes in Low-Temperature-Activated Alumina Products

Scandium Recovery from Aqueous Solution by Adsorption Processes in Low-Temperature-Activated Alumina Products

In this paper, we studied the scandium adsorption from aqueous solutions on the surface of low-temperature-activated alumina products (GDAH). The GDAH samples are industrially manufactured, coming from the Bayer production cycle of the Sierra Leone bauxite as aluminium hydroxide, and further, by dry...

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Veröffentlicht in:International journal of molecular sciences 2022-09, Vol.23 (17), p.10142
Hauptverfasser: Daminescu, Diana, Duţeanu, Narcis, Ciopec, Mihaela, Negrea, Adina, Negrea, Petru, Nemeş, Nicoleta Sorina, Berbecea, Adina, Dobra, Gheorghe, Iliev, Sorin, Cotet, Lucian, Boiangiu, Alina, Filipescu, Laurentiu
Format: Artikel
Sprache:eng
Schlagworte:
Adsorbents
Adsorption
Alliances
Alloys
Alumina
Aluminum Oxide
Aqueous solutions
Bauxite
Bayer process
Composite materials
Drying
Hydrogen-Ion Concentration
Kinetics
Low temperature
Metals
Particle size
R&D
Research & development
Scandium
Temperature
Water
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Zusammenfassung:In this paper, we studied the scandium adsorption from aqueous solutions on the surface of low-temperature-activated alumina products (GDAH). The GDAH samples are industrially manufactured, coming from the Bayer production cycle of the Sierra Leone bauxite as aluminium hydroxide, and further, by drying, milling, classifying and thermally treating up to dehydroxilated alumina products at low temperature. All experiments related to hydroxide aluminium activation were conducted at temperature values of 260, 300 and 400 °C on samples having the following particle sizes:
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms231710142