نتایج جستجو برای: recovery of gold

تعداد نتایج: 21190665  

2004
R. J. DAVIDSON

The adsorption of gold onto activated charcoal is most dependent on the concentration and character of the 'spectator' cations present in the adsorption medium. In the presence of calcium ions, gold is adsorbed as the calcium aurocyanide complex. The degree to which the aurocyanide complexes are adsorbed follows the series Ca> Mt:> H> Li> Na> K, calcium aurocyanide being the most stable complex...

2018
Qiang Zhong Yongbin Yang Lijuan Chen Qian Li Bin Xu Tao Jiang

Cyanidation is the main method used to extract gold from gold raw materials; however, a serious problem with this method is the low leaching rate. In order to improve gold leaching, the intensification behavior of mercury ions on gold cyanide leaching, for two types of materials, sulphide gold concentrate and oxide gold ore, was investigated. The results showed that mercury ions, with only a 10...

Journal: :Journal of Minerals and Materials Characterization and Engineering 2004

Journal: :Journal of physics 2023

Abstract The raw gold grade of a mine in Shandong is 1.42 g/t, and it accompanied by copper sulfur minerals, the embedding closely related, so difficult to obtain ideal index using original flotation process. In order realize effective recovery gold, copper, sulfur, test study mixing-separation priority carried out. results show that mineral more suitable for beneficiation process flotation. ra...

Journal: :Communications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering 1996

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