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pretreatment process. Damages of ions to bacterial growth of leaching minerals in solution have been researched extensively [3-18]. For example, FAN et al [5] summarized the mechanism of bacterial oxidation... domesticated way, and the resistant domesticated fluorine speed of bacteria could be improved through the leaching ore to select fine stains. The bacterial oxidation process was adopted in a gold smelting......
and reaction control during the bacterial and ferric sulphate leaching of zinc sulphide [J]. Hydrometallurgy, 2004, 73(2): 313-324.  ... Mechanism of electro-generating leaching of chalcopyrite-MnO2 in presence of Acidithiobacillus thiooxidans XIAO Li(肖 利)1, 2, LIU Jian-she(柳建设)3, FANG Zheng(方 正)1, QIU Guan-zhou(邱冠周)4 1. School......
bioleaching and to assist in understanding the mechanisms of zinc bacterial leaching. The bacterial leaching of marmatite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans (denoted as A.f.... 2.3 Methods The bacterial leaching experiments were carried out in 250 mL Erlenmeyer flasks that were shaken in an air-conditional shaker. The temperature and rotation were constantly maintained......
-bacterial leaching technology, and the mineral transformation mechanism was also researched. The results show that the leaching rates of Ni, Cu, Mg and Fe are 93.24%, 92.07%, 62.67% and 63.39%, respectively. The roasting and bacterial leaching processes are selective for minerals. The serpentine with high iron content is easy to react with ammonium sulfate in the roasting process. Iron element......
Bacterial leaching of discarded copper ores from Yongping, ChinaMuqing Qiu, Genxuan Wang, and Zhuxia Shen College of Life Sciences, Zhejiang University, Hangzhou 310029, China摘 要:<正>The elementary and phase analysis of discarded copper ores from Yongping of China has been performed. The experiments of extracting copper from the discarded copper......
Bacterial leaching of chalcopyrite and bornite with native bioleaching microorganism WANG Jun(王 军), QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生), YANG Cong-ren(杨聪仁), ZHANG Jian-wen(张建... pilot test. It is a long way to be implemented at commercial scale[7-11]. The bacterial leaching of low grade copper sulfide is a complex process. Millions of tones of low-grade ore and copper-rich......
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on the surface of the sulfides can be oxidized by A. ferrooxidans after bio-electro-generative leaching for 24 h, and the transferred charge due to the bacterial oxidation is up to 17.86%, which..., and in favor of the leaching of sphalerite. After 24 h, the transferred charge due to the bacterial oxidation is an important part of the output electric quantity. References [1] CRUNDWELL F K. Kinetics......