INCREASING THE EFFICIENCY OF SORPTION CYANIDATION OF REFRACTORY SILVER-CONTAINING ORES USING VARIOUS REAGENTS FOR PRE-TREATMENT
Article Sidebar
Main Article Content
Abstract
The present study investigates the effect of preliminary reagent treatment on the efficiency of sorption cyanidation of calcines obtained from Hydrometallurgical Plant No. 3 after the oxidative roasting process. Nitric acid, hydrochloric acid, and sodium hydroxide were used as reagents for the preliminary treatment. The results demonstrate that nitric acid provides the most pronounced positive effect. Sorption cyanidation tests revealed that preliminary nitric acid treatment at a concentration of 20 g/l and a temperature of 85 °C increases the silver recovery from 53.7% to 85.1%. As a result, the overall silver recovery during the sorption cyanidation process increases by 31.4%, confirming the high efficiency of nitric acid pretreatment for enhancing the processing of refractory silver-bearing calcines.
Downloads
Article Details
Issue
Section
This work is licensed under a Creative Commons Attribution 4.0 International License.
Public License Terms
(For Open Journal Systems (OJS))
-
Copyright:
The copyright of the published article remains with the author(s). However, after publication, the article is distributed on the OJS platform under the Creative Commons (CC BY) license. -
License Type:
This article is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. This means users can utilize the article under the following conditions:- Copy and distribute: The text of the article or its parts can be freely distributed.
- Quote and analyze: Parts of the article can be used for quoting and analysis.
- Free use: The article can be freely used for research and educational purposes.
- Attribution: Users must provide proper attribution and reference to the original source.
-
Commercial use:
The article can be used for commercial purposes, provided that authorship and source are properly cited. -
Document modification:
The text or content of the article can be modified or adapted, as long as it does not harm the authorship. -
Liability disclaimer:
The author(s) are responsible for the accuracy of the information contained in the article. The editorial team of the platform is not liable for any damages resulting from the use of this information. -
Public usage obligations:
The content of the article must be used only in accordance with legal and ethical standards. Unauthorized use is strictly prohibited.
Note:
These license terms are designed to ensure transparency and openness in material usage. By accepting these terms, you agree to the adaptation and distribution of the article content under the terms of the Creative Commons license.
Link: Creative Commons Attribution 4.0 International (CC BY 4.0)
How to Cite
References
[1] Acidic pretreatment of a copper silver ore and its beneficial effect on cyanide leaching. (2020). Minerals Engineering, 149, 106233. https://doi.org/10.1016/j.mineng.2020.106233 DOI: https://doi.org/10.1016/j.mineng.2020.106233
[2] Awe, S. A., et al. (2011). Implementation of sodium hydroxide pretreatment for refractory antimonial gold and silver ores. Hydrometallurgy, 108(1–2), 109–114. DOI: https://doi.org/10.1016/j.hydromet.2011.03.005
[3] Nitric acid pretreatment applied to a refractory gold tellurides ore. (2023). Mining, Metallurgy & Exploration, 40, 2051–2058. DOI: https://doi.org/10.1007/s42461-023-00817-y
[4] Pressure leaching of a lead zinc silver concentrate with nitric acid at moderate temperatures. (2010). Hydrometallurgy, 104(1), 8–13. https://doi.org/10.1016/j.hydromet.2010.04.001 DOI: https://doi.org/10.1016/j.hydromet.2010.04.001
[5] Advances in the cyanidation of silver. (2011). Mining, Metallurgy & Exploration, 28, 37–42. DOI: https://doi.org/10.1007/BF03402323