About this article
Published Online: Apr 13, 2021
Page range: 45 - 51
DOI: https://doi.org/10.2478/minrv-2021-0006
Keywords
© 2021 Camelia Bădulescu, published by Sciendo
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
The paper presents the attempts of acid and alkaline solubilization of the power plant ashes, using different chemical reagents, at different concentrations. Due to the mineralogical content of these ashes, was elaborated a technological flow for the recovery the iron minerals, resulting an ferrous concentrate containing noble metals. For their recovery from ferrous concentrate, were studied properties of gold, silver and platinum, the conclusion being that these chemical elements can be extracted, in economic conditions, with sodium hypochlorite.