Separation of Scandium from Hydrochloric Acid-Ethanol Leachate of Bauxite Residue by a Supported Ionic Liquid Phase.

ABSTRACT: Solvometallurgy is a new branch of extractive metallurgy in which green organic solvents are used instead of aqueous solutions to improve selectivity in separation processes. In the present study, nonaqueous leaching of a Greek bauxite residue (BR) was performed and scandium was separated from other elements in the leachate by column chromatography. At first, the selectivity of sorbents for scandium(III) over iron(III) was tested in batch mode using various organic solvents. The following three sorbents were tested: (1) a carboxylic acid-functionalized supported ionic liquid phase (SILP), (2) silica (SiO₂), and (3) silica functionalized with ethylenediaminetetraacetic acid (SiO₂-TMS-EDTA). The best separation of scandium and iron was achieved from ethanolic solution b

SUBMITTER: Avdibegovic D 

PROVIDER: S-EPMC7499406 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature