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难浸金矿石的浸出与尾矿再回收试验研究张水旺1,冯勇1,黎清林1(1.贵州省黔西南布依族苗族自治州黔西南金龙黄金矿业有限责任公司)摘 要:通过对难浸金矿石的氰化,浮选试验研究,确定出合理的工艺流程及条件,使难浸金矿石氰化浸出率达到87%以上;对氰化尾矿浮选,使金的氰化,浮选总回收率可达91.93%. 关键词:难浸金矿石； 氰化； 浮选； 金回收率......
Rare Earth Element Geochemistry on Magmatic Rocks and Gold Deposits in Shizishan Ore-Field of Tongling, China Xie Qiaoqin1,Xu Xiaochun1,Xiong Yaping1,Lu Sanming1,Chu Guozheng2 (1.School... geochemical characteristics of the magmatic rocks and gold deposits in Shizishan ore-field of Tongling were studied. Three types of the magmatic rocks have almost the same chondrite-normalized REE patterns......
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is necessary to determine the optimum conditions for modeling of gold leaching in cyanide media. Many researchers studied on dissolution and modeling of gold ores cyanidation [1-8]. Artificial neural network..., for a new input of relatively similar pattern, predictions can be done on the basis of previous learning [9]. In this work, the aim is to study the effect of leaching parameters on gold cyanidation......
to sulfate. After alkaline leaching, cyanidation and adsorption were carried out for 24 h. The dissolution of gold by NaCN is increased to 95.3% from 12.8% before pretreatment, and meanwhile 99.3...A new extraction process of refractory gold arsenosulfide concentratesYuqun Meng Tao Jin, Minjie Wu, Shaoling Su, and Longbao Wang1)Laboratory of Special Preparing and Processing Technology......
精矿[J]. 矿冶工程, 2017, 37(3): 114-117. DENG Wen, WU Rong-xia, LIU Zhi-cheng, WANG Ming-fei, LU Hua-sheng. Treatment of refractory gold concentrate by oxidation roasting-thiosulfate leaching[J]. Mining... Limited, Beijing 100011, China) Abstract: A wet leaching process for disposing high antimony dust generated from the matte smelting process of refractory gold concentrate was reported. The phase composition......
提高含砷金精矿二段焙烧-氰化工艺金浸出率的试验研究薛光1,王永新2,薛元昕3(1.山东省烟台市人民武装警察部队黄金第七支队2.河北怀来宏达矿业有限公司3.烟台职业学院)摘 要:在试验研究基础上,提出了一种提高含砷金精矿二段焙烧-氰化浸出工艺金浸出率方法.试验结果表明,含砷金精矿经一段焙烧(450~500℃)除砷后,加入一定量的添加剂SR,再进行二段焙烧(630~650℃),然后经稀硫酸除铜后进行氰化浸出,可使金的氰化浸出率提高4.65%.该方法可获得较好的经济效益和社会效益.关键词:含砷金精矿； ......
; Abstract: Low gold and silver leaching kinetics has been commonly observed in traditional gold-silver cyanidation process, especially in heap leaching and in situ leaching operations. The different mineralogy of gold and silver in the ores is suspected to be the main reason, e.g., the occurrence of low solubility acanthite (Ag2S) typically results in low......
Trans. Nonferrous Met. Soc. China 25(2015) 3461-3466 Leaching kinetics of gold bearing pyrite in H2SO4-Fe2(SO4)3 system Shui-ping ZHONG1,2,3 1. Zijin Mining Group Co. Ltd., Shanghang 364200, China; 2... 2015; accepted 18 June 2015 Abstract: Gold bearing pyrite leaching was conducted in H2SO4-Fe2(SO4)3 system at different reaction temperatures, with different ferric ion concentrations, sulfuric acid......
量的硫以单质的形式残留在合成渣中,渣中残留的硫随硫黄与石灰质量比的增加而增多. 关键词:石硫合剂；浸出特性；金精矿；非氰浸金；转化率 中图分类号:TF803.21 文献标志码:A Effects of lime sulphur synthetic solution on leaching characteristic of gold..., Beijing 100083, China) Abstract: Lime sulphur synthetic solution (LSSS) method was applied in gold concentrates leaching. The effect of mass ratio of sulphur, lime and water and synthetic time......
