共搜索到3050条信息,每页显示10条信息,共305页。用时:0小时0分0秒421毫秒
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.... The results showed that the optimal reagent conditions were 0.18 M thiosulfate, 0.02 M copper(II), 1.0 M ammonia, and 0.24 M sulfite. Under these conditions, a maximum gold leaching efficiency......
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] ......
......
____________________________________________________________________________________________ Abstract: The concentrations of S2O32- and SO32- were measured in gold leaching systems, including thiosulfate system, polysulfide system and the modified lime sulfur synthetic..., the main non-cyanide processes include thiosulfate, polysulfide, LSSS (lime sulfur synthetic solution), ML (modified LSSS), thiocyanate, chloride, and bromide leaching processes etc[1-7]. Many processes......
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......
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...Silver dissolution in a novel leaching system: Reaction kinetics studyLi Xiao1,2,Pei-wei Han1,Yong-liang Wang1,Guo-yan Fu1,2,Zhi Sun1,Shu-feng Ye11. State Key Laboratory of Multiphase Complex Systems......
Silver sulfide leaching with a copper-thiosulfate solution in the absence of ammoniaAlejandro Lopez-Valdivieso摘 要:Leaching from silver sulfide using... of thiosulfate concentration,copper-to-thiosulfate ratio,agitation vigorousness,pH values,and dissolved gases on the leaching of silver sulfide with the copper-thiosulfate solution were studied.A maximum......
): 536-543. DOI: 10.1016/S1003- 6326(14)63093-4. [36] LI G, RAO M, JIANG T, HUANG Q, PENG Z. Leaching of limonitic laterite ore by acidic thiosulfate solution [J]. Minerals Engineering, 2011, 24(8): 859-863... J. Cent. South Univ. (2019) 26: 2328-2339 DOI: https://doi.org/10.1007/s11771-019-4177-5 Water leaching of arsenic trioxide from metallurgical dust with emphasis on its kinetics YANG Kang(杨康)1, LIU......
rate mainly depends on the reaction temperature and the partial pressure of oxygen. Key words: ocean polymetallic nodule; oxidative leaching; kinetics; reaction CLC number: TF111.3  ... Article ID: 1003-6326(2005)03-0697-05 Kinetics of oxidative leaching of ocean polymetallic nodules in molten potassium hydroxide medium WANG Yun-shan(王云山), LI Zuo-hu(李佐虎), LI Hao-ran(李浩然......
......