Impact of Ferric and Ferrous Iron on the Crystallization of Rare Earth Sulphate Hydrates.

ABSTRACT: Rare earth elements (REEs) are important for permanent magnets used in for example wind turbines and motors. There is an imbalance in supply and demand of this commodity and the REE have been identified as critical raw materials by the European Union. This study focuses on recovery of REEs from sulfuric acid solutions using antisolvent crystallization in recycling of magnet waste. Ethanol is used as an antisolvent to crystallize Nd₂(SO₄)₃·8H₂O and (Nd/Dy)₂(SO₄)₃·8H₂O. The impact of the presence of Fe in ferrous and ferric states, and of different seeding strategies, on the quality of the crystal product in terms of purity, crystal size, morphology and agglomeration has been investigated. Higher purity (

SUBMITTER: Pawar N 

PROVIDER: S-EPMC12330332 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature