Solid-phase extraction of rare earth elements from phosphoric acid solutions
Publikationen: Thesis / Studienabschlussarbeiten und Habilitationsschriften › Masterarbeit
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2022.
Publikationen: Thesis / Studienabschlussarbeiten und Habilitationsschriften › Masterarbeit
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TY - THES
T1 - Solid-phase extraction of rare earth elements from phosphoric acid solutions
AU - Lukyantseva, Elena
N1 - no embargo
PY - 2022
Y1 - 2022
N2 - The master's thesis is devoted to the rare earth elements obtaining from phosphoric acid solutions as by-products of apatite concentrate sulfuric acid leaching, which will increase its processing depth. The paper gives an analysis of global achievements in the field of rare earth elements obtaining, presents the technological and chemical bases of producing phosphoric acid, and outlines rare earth elements properties, main sources and applications. The purpose of the paper is to explore the solid-phase method of rare earth elements extraction using polymer-based materials impregnated or immobilized with di-2-ethylhexylphosphoric acid as an extractant. The results of the research revealed thermodynamic and technological features of the process, as well as the possibility of effective multiple use of the resins, regenerated with sodium citrate.
AB - The master's thesis is devoted to the rare earth elements obtaining from phosphoric acid solutions as by-products of apatite concentrate sulfuric acid leaching, which will increase its processing depth. The paper gives an analysis of global achievements in the field of rare earth elements obtaining, presents the technological and chemical bases of producing phosphoric acid, and outlines rare earth elements properties, main sources and applications. The purpose of the paper is to explore the solid-phase method of rare earth elements extraction using polymer-based materials impregnated or immobilized with di-2-ethylhexylphosphoric acid as an extractant. The results of the research revealed thermodynamic and technological features of the process, as well as the possibility of effective multiple use of the resins, regenerated with sodium citrate.
KW - Seltenerdelemente
KW - Apatit
KW - Phosphorsäurelösungen
KW - Festphasenextraktion
KW - di-2-Ethylhexylphosphorsäure
KW - lösemitteltränktes Harz
KW - immobilisiertes Harz
KW - Rare earth elements
KW - apatite
KW - phosphoric acid solutions
KW - solid-phase extraction
KW - di-2-ethylhexilphosphoric acid
KW - solvent-impregnated resin
KW - immobilized resin
U2 - 10.34901/mul.pub.2023.75
DO - 10.34901/mul.pub.2023.75
M3 - Master's Thesis
ER -
