Study on Gold Extraction from Thiosulfate-Ethylenediamine-Copper Ion System
DOI: 10.23977/erej.2020.040102 | Downloads: 38 | Views: 2759
Chao Deng 1, Pengzhi Xiang 1, Longjiang Liu 1
1 School of Chemical Engineering, Yunnan Open University, Kunming 650222, P.R. China
Corresponding AuthorPengzhi 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%.
KEYWORDSthiosulfate, gold leaching system, ethylenediamine, leaching rate
CITE THIS PAPER
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: http://dx.doi.org/10.23977/erej.2020.040102.
 Aylmore M G, Muir D M. Thiosulfate leaching of gold- Areview [J]. Minerals Engineering, 2001, 14 (2): 135174.
 GrosseAC, DicinoskiGW, ShawMJ, etal. Leaching and recovery of gold using ammoniacal thiosulfate leach liquors (areview) [J]. Hydrometallurgy, 2003, 69 (1/2/3): 1-21.
 Han Bin, Tong Xiong, Xie Xian, Yang Bo. Research progress on thiosulfate leaching gold system [J]. Comprehensive Utilization of Mineral Resources, 2015 (03): 11-16.
 Zhong Jin, Hu Xianzhi, Zi Futing, Yu Hong. Status and development of thiosulfate leaching gold [J] .Mining and Metallurgy, 2014, 23 (02): 65-69.
 Lai Caishu, Hu Xianzhi, Zi Futing.Research Status and Development Trend of Gold Recovery in Gold Thiosulfate Leaching Solution [J] .Mining and Metallurgy, 2011, 20 (02): 40-43.
 Zhao Hefei, Yang Hongying, Zhang Qin, Lin Linlin, Jin Zhenan, Chen Guobao.Research Status of Factors Affecting Gold Leaching by Thiosulfate [J] .Gold Science and Technology, 2018, 26 (01): 105-114.
 Xiang Pengzhi, Liu Qiong, Ye Guohua. Study on thiosulfate consumption in copper-ethylenediamine-thiosulfate immersion gold system [J]. Gold, 2018, 39 (03): 59-62.
 Li Feng, Yang Yushan, Ding Dexin, Hu Nan, Yu Qing. Microwave roasting of high arsenic gold-containing sulfur concentrates with thiosulfate leaching test [J]. Journal of Nanhua University (Science and Technology), 2016, 30 (03): 30-35 + 43.
 Li Feng, Ding Dexin, Hu Nan, Peng Zhicheng, Chen Wei. Roasting oxidation-thiosulfate leaching of refractory gold-containing sulfur concentrates [J]. Chinese Journal of Nonferrous Metals, 2014, 24 (03): 831-837.
 Deng Wen, Wu Rongxia, Liu Zhicheng, Wang Mingfei, Lu Huasheng. Roasting pre-oxidation-thiosulfate leaching of a refractory gold concentrate [J]. Mining and Metallurgical Engineering, 2017, 37 (03): 114-117.
 Gao Peng, Tang Daowen, Tang Yanlang.Experimental Study on Leaching Gold from a Carlin-type Gold Ore with Sodium Thiosulfate [J] .Wet Metallurgy, 2017, 36 (01): 12-15.
 Liu Lin, Hu Xianzhi, Zi Futing, Wang Qiang, Chen Yunlong, Chen Shuliang.Research on Recovery of Gold in Copper-Ethylenediamine-thiosulfate Leaching Gold System by Replacement of Zinc Powder [J] .Nonferrous Metal Engineering, 2018, 8 (05): 66-71.
 FengD, DeventerJSJV. Preg-robbingphenomenainthe thiosulphate leaching of gold ores [J]. Minerals Engineering, 2001, 14 (11): 1387-1402.
 Feng D, Deventer J S J V. Effect of thiosulphate salts on ammoniacal thiosulphate leaching of gold [J]. Hydrometallurgy, 2010, 105 (1/2): 120-126.
 Jiang Tao, Huang Zhucheng, Yang Yongbin, Chang Yongqiang. Consumption of thiosulfate and leaching of copper-bearing gold ores [J]. Mining and Metallurgical Engineering, 1996 (01): 46-48.