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sulfate, sodium thiosulfate and pyrite can improve the efficiency of copper leaching. When the initial mass concentration of ferrous is 5 g/L, the copper leaching rate reaches 35.00% after 46 d leaching, 13.63% higher than that without ferrous sulfate. When sodium thiosulfate is added with 1 g/L of initial S mass concentration, the copper leaching rate reaches the highest value of 38.10% after 46......
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硫代硫酸盐浸金过程中硫代硫酸盐消耗浅探 周国华1,何伯泉1,薛玉兰1,李焕然2 (1.中南工业大学矿物工程系,湖南 长沙 410083;2.中山大学化学系,广东 广州 510275) 摘要:研究室温下硫代硫酸盐浸金过程中影响硫代硫酸盐肖耗的各种因素,包括浸出时间,铜浓度,pH,氧气,氮气等.铜氨络离子与氧气同时作用于硫代硫酸盐是该盐在浸金过程中大量消耗的主要原因. 关键词:硫代硫酸盐; 浸金; 铜离子; Thiosulfate; Leaching gold; Copperion; [全文内容正在添加中] ......
production by air oxidation, and the approach of enhancing the by-product output of sodium thiosulfate was explored. The results show that when sulphuric acid and SO2 gas are separately used...: air oxidation; sodium thioantimonite; sodium thiosulfate; removing impurities 焦锑酸钠在玻璃工业作为澄清剂和脱色剂,特别是作为电视荧光屏显像管玻璃,计算机显示器玻璃等高档玻璃生产的澄清剂,使玻璃透明度高,光照不变色,其效果远远优于传统的澄清剂,而且毒性小.在阻燃工业中,焦锑酸钠......
">The effects of chloride and thiosulfate ions on localized corrosion of alloy 800 are investigated through dynamical observation of the change in phase image of the diffusion layer during passive film... show that in the process of film breakdown, dissolution of metal ions from pitting is not remarkable in chloride-only solution, whereas dissolution of metal ions is significantly high in thiosulfate......
Trans. Nonferrous Met. Soc. China 25(2015) 3454-3460 Effect of arsenopyrite on thiosulfate leaching of gold Yong-bin YANG, Xi ZHANG, Bin XU, Qian LI, Tao JIANG, Ya-xuan WANG School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China Received 17 November 2014; accepted 9 January 2015 Abstract: Arsenopyrite was artificially added into the thiosulfate leaching......
Silver sulfide leaching with a copper-thiosulfate solution in the absence of ammoniaAlejandro Lopez-Valdivieso摘 要:Leaching from silver sulfide using a copper-thiosulfate solution in the absence of ammonia was investigated.It is found that silver sulfide could be effectively dissolved in the copper-thiosulfate system without ammonia.The effects......
thiosulfate-potassium ferricyanide leaching system. The reaction kinetics of silver dissolution in this system was investigated via the rotating disk electrode technology. The influences of important parameters, including the rotation speed, sodium thiosulfate concentration, potassium ferricyanide concentration, and temperature, on the silver dissolution rate were systematically investigated. The activation......
Biooxidation-thiosulfate leaching of refractory gold concentrateHe-fei Zhao1,2,Hong-ying Yang1,2,Lin-lin Tong1,2,Qin Zhang1,2,Ye Kong1,21. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University2. School of Metallurgy, Northeastern University摘 要:A process of biooxidation followed by thiosulfate......
