LEACHING OF GOLD FROM OXIDIZED GOLD ORES USING GLYCINE

Authors

  • Rakhmonova, U.T. Автор
  • Akhmedova Dilshodakhon Abdukodir kizi Автор

DOI:

https://doi.org/10.5281/zenodo.18845281

Abstract

This study investigated the process of gold extraction from oxidized gold ore, leveraging the selective dissolution property of glycine for precious metals. Glycine, a non-toxic and simple amino acid, is of significant interest for its potential use in gold extraction. The study utilized glycine solutions at concentrations of 1-3 M, with reaction times ranging from 4 to 60 hours. Throughout the process, the pH was maintained at 11-12, the reactor temperature was set to 60 °C, the stirring speed was 350 rpm, and the air flow was 1 L/min. The average particle size of the oxidized ore was 70.7 μm. The results of the study indicated that the highest gold recovery rate of 81.41% was achieved after 48 hours in a 3 M glycine solution. Silver solubility was moderate at 44.50%, while iron exhibited low solubility at 7.71%. Furthermore, it was determined that extending the reaction time and increasing the glycine concentration promoted greater gold extraction from the oxidized ore. 

 

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Published

2026-03-03

Issue

Vol. 2 No. 2 (2026): International Conference on Engineering & Technology (ICET)

Section

Статьи

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How to Cite

Rakhmonova, U., & Akhmedova, D. (2026). LEACHING OF GOLD FROM OXIDIZED GOLD ORES USING GLYCINE. International Conference on Engineering & Technology, 2(2), 55-63. https://doi.org/10.5281/zenodo.18845281