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Study on Gold Extraction from Thiosulfate-Ethylenediamine-Copper Ion System

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DOI: 10.23977/erej.2020.040102 | Downloads: 39 | Views: 3036


Chao Deng 1, Pengzhi Xiang 1, Longjiang Liu 1


1 School of Chemical Engineering, Yunnan Open University, Kunming 650222, P.R. China

Corresponding Author

Pengzhi Xiang


A gold mine in Myanmar is used as the research object in this paper. The thiosulfate-ethylenediamine-copper ion process conditions are discussed from the three aspects that affect the leaching effect: thiosulfate concentration, ethylenediamine concentration and copper ion concentration. It has certain significance for enriching the theory and practice of the system. The leaching conditions are: grinding fineness -74μm 95%, ammonium thiosulfate concentration is selected as 0.3mol/L, copper ion concentration is selected as 0.005mol/L, ethylenediamine concentration is selected as 0.06mol/L, and the pH value is adjusted to about 10, liquid to solid mass ratio of 3:1, stirring and leaching at room temperature for 7h, on this basis, the gold leaching rate is 81.05%.


thiosulfate, gold leaching system, ethylenediamine, leaching rate


Chao Deng, Pengzhi Xiang and Longjiang Liu. Study on Gold Extraction from Thiosulfate-Ethylenediamine-Copper Ion System. Environment, Resource and Ecology Journal (2020) 4: 16-22. DOI:


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