Rare-Earth Elements Recovery on the Example of Europium (III) from Lean Technogenic Raw Materials
Olga Lobacheva 1  
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Saint-Petersburg Mining University, Vasilievskiy Island, Saint-Petersburg, Russian Federation
Publish date: 2017-11-01
J. Ecol. Eng. 2017; 18(6):122–126
Europium (III) recovery from nitrate solutions in a form of dodecyl sulfates using extraction methods was studied. Distribution and recovery coefficients as a function of equilibrium aqueous phase рН value were received. Conclusions on the effectiveness of presented method depending on the assigned task were drawn. The aims of this study were the development of rare-earth elements recovery and separation methods by using extraction with surfactant and distribution coefficients separation as well as recovery coefficient experimental validation with their subsequent introduction for poor mineral raw materials industrial processing. The authors study the rare-earth metals distribution and recovery coefficients during the extraction processes as a function of aqueous phase pH value with recovered compound form determination and thermodynamical justification.
Natalia Dzhevaga   
Saint-Petersburg Mining University, Vasilievskiy Island, 21st line, h. 2, 199106 Saint-Petersburg, Russia