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, alkali leaching residue rate and gold cyanide leaching efficiency 由图1可知,当氢氧化钠浓度从0升高到6 mol/L时,碱浸渣渣率由100.00%下降到88.20%,砷的脱除率由0逐渐增加至99.66%.结果表明氢氧化钠能有效的脱除烟尘中的砷.当氢氧化钠浓度从0增加到2 mol/L时,碳的脱除率由0升高至70.23%,继续增加氢氧化钠..., YANG Y B, JIANG T, LI Q, ZHANG X, WANG D. Improved thiosulfate leaching of a refractory gold concentrate calcine with additives[J]. Hydrometallurgy, 2015, 152: 214-222. [11] HASHEMZADEHFINI M......
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] ......
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the oxidation of refractory gold concentrate (RGC) by ozone and ferric ions. The concentration of ozone and ferric ions, pulp density, oxygen amount, leaching time and temperature were employed as inputs... gold silver through thiourea leaching [C]//MISRA V N, HALBE D, SPOTTISWOOD D J. Int Conf Ext Metall Gold Base Met. Parkville: The AusIMM, 1992: 329-332. [8] WEIR D, BEREZOWSKY M. Gold extraction from......
Trans. Nonferrous Met. Soc. China 25(2015) 597-607 Treatment of copper-rich gold ore by cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching A. D. BAS, E. KOC, Y. E. YAZICI, H... September 2014 Abstract: The treatment of a copper sulphide-bearing gold ore by direct cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching was investigated. Dissolution behaviour of gold......
:A Biooxidation-cyanidation leaching of gold concentrates with different arsenic types CUI Ri-cheng, YANG Hong-ying, FU Yao, CHEN Sen, ZHANG Shuo (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: The biooxidation and cyanidation leaching of gold concentrates and monominerals with different arsenic types were studied. The effects of arsenopyrite......
; 文献标志码:A Leaching of Au from refractory gold ore in thiourea-thiocyanate solutions and stability of lixiviants YANG Xi-yun, LIU Zheng... on the leaching rate of gold were investigated. The results show that the gold leaching rate is 93.1% under the optimum conditions, and the leaching rate in mixed system is greater than the sum......
, and lead from bismuth-rich and arsenic-rich lead anode slime for bismuth, gold, and silver enrichment.The effects of the temperature, liquid-to-solid ratio, leaching time, and reagent concentration...Alkaline pressure oxidative leaching of bismuth-rich and arsenic-rich lead anode slimeYun-long He1,Rui-dong Xu1,2,Shi-wei He1,Han-sen Chen1,Kuo Li1,Yun Zhu1,Qing-feng Shen11. Faculty of Metallurgical......
of Metallurgy and Environment,Central South University摘 要:A new technique of swelling oxidizing roasting and alkaline leaching was proposed for deselenization... leaching rate of selenium and tellurium were investigated,and Na Cl was selected as an appropriate swelling agent. Furthermore,the effects of various factors on the selenium gasification rate......
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