Method for extraction of gold and silver from technogenic pyrite raw materials

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Sachkov, V.I.^1 ; Nefedov, R.A.^1 ; Medvedev, R.O.^1

Innovation and Technology Center, National Research Tomsk State University, 36 Lenin Street, Tomsk

634050, Russia^1

关键词: Extraction of golds;    Hydrometallurgical processing;    Leaching time;    Refractory sulfides;    Selective extraction;    Sulfate concentrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012053/pdf
DOI  :  10.1088/1757-899X/597/1/012053

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The paper contains the results of hydrometallurgical processing of technogenic pyrite raw materials. The method is based on selective extraction of gold and silver from ore by solution, which contains sodium sulfite and sodium sulfate. The most promising results were obtained utilizing solution with sodium sulfite and sodium sulfate concentration of 25 g/L and leaching time - 1 hour. Under these conditions, the extraction of gold was 67%. The use of sodium sulphate and sodium sulfite allows to extract gold and partially silver from refractory sulfide ores.