A5090414556- Extraction and Separation Processes
- Bauxite Residue and Utilization
- Geochemistry and Elemental Analysis
- Metal Extraction and Bioleaching
- Radioactive element chemistry and processing
- Chemical and Physical Properties in Aqueous Solutions
- Recycling and Waste Management Techniques
Helmholtz-Zentrum Dresden-Rossendorf
2019-2022
Helmholtz Institute Freiberg for Resource Technology
2019-2022
The rapid development of light-emitting-diode (LED) technology is attributed to its superiority over light sources earlier generations. Although LED lamps, compared compact fluorescent are considered less harmful the environment, there still no efficient solution deal with them at end their lifecycle. first part study provides a detailed characterisation focusing on most interesting component: module. packages attached module highly enriched Ga, In, Pd, Ag, Au, Sr, Y, Ce, Eu, Gd, and Lu,...
This study investigates the removal of aluminum and iron from rare earth element (REE) containing solutions by solvent extraction with saponified naphthenic acid hydrolysis-precipitation. The results emphasize both, preferential application as well limitations every method. We find that emulsification occurring during is caused its slow rate in comparison to neutralization reaction proximity pH value required for at which hydrolysis occurs. However, choosing a long shaking time least 4 h,...
Solvent extraction is one of the common methods for recovery boric acid (or boron) from aqueous solutions. A wide variety different compounds including monohydric alcohols has been tested, and there recognition that they are rather ineffective compared to other extractants such as diols. Nevertheless, find application in industrial processes, demonstrating their efficiency. The intention this study clarify discrepancy provide an overall picture extractant acid. Five object study: n-octanol,...
Eudialyte, a sodium rich zirconosilicate, is one of the promising sources for REEs (rare earth elements), particularly HREEs + Y (heavy rare elements and yttrium). The key challenge in hydrometallurgical processing prevention silica gel formation REE separation from resulting multi-element leach solutions. This study deals with selective extraction eudialyte concentrate by roasting. In this method, metal ions are converted into sulfates, followed decomposition non-REE sulfates roasting step...