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excellently depleted from the flotation tailing, leaving a considerable amount of iron in the final residue. Key words: zinc; lead; flotation tailing; sequential leach 1 Introduction Zinc and lead... composition of first stage leach residue by XRF (wt.%) Figure 12 shows the dissolution rates of lead, zinc, and iron from the flotation tailing by the sequential leaching process using sodium hydroxide......
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Damping properties of silicone rubber/polyacrylate sequential interpenetrating networks WANG Yan-bing(王雁冰), HUANG Zhi-xiong(黄志雄), ZHANG Lian-meng(张联盟) School of Materials Science and Technology, Wuhan University of Technology, Wuhan 430070, China Received 10 April 2006; accepted 25 April 2006 Abstract: Silicone rubber/polyacrylate sequential interpenetrating polymer networks(IPNs) were......
Assessment of heavy metal pollution in sediments from Xiangjiang River (China) using sequential extraction and lead isotope analysisJIANG Bo-feng(蒋博峰)1, 2, SUN Wei-ling(孙卫玲)1, 2(1. Key Laboratory... metal (such as Cr, Ni, Cu, Cd, Pb, and Zn) concentration, speciation, and pollution source in 43 sediment samples from the Xiangjiang River were investigated using sequential extraction combined......
refractoriness prior to cyanide leaching. Key words: gold and silver ores; refractoriness; characterization; diagnostic leach ... by a cyanide leach step to recover gold available/liberated after each stage[19-20]. A set of guidelines for the design of a diagnostic leaching experiment were demonstrated by LORENZEN[21]. The procedure......
Kinetics comparison on simultaneous and sequential competitive adsorption of heavy metals in red soilsWANG Yan(王艳)1, 2, LI Zhong-wu(李忠武)1, 2, HUANG Bin(黄斌)1, 2, JIANG Wei-guo(蒋卫国)3, GUO Liang(郭亮)1... heavy metals was evaluated by performing batch experiments. The results indicate that Cu is preferentially adsorbed by red soils no matter in simultaneous or in sequential situation. The adsorption......
Sequential fault diagnosis strategy with imperfect tests considering life cycle costZHANG Shi-gang(张士刚), HU Zheng(胡政), WEN Xi-sen(温熙森) (Laboratory of Science and Technology on Integrated Logistics Support, College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China)Abstract:The problem of sequential fault diagnosis is to construct......
Risk quantification in grade variability of gold deposits using sequential Gaussian simulationTayfun Y. Yunsel(Mining Engineering Department, Cukurova University, Adana, 01330, Turkey)Abstract:Risk... to evaluate local or global uncertainty by honouring spatial correlation structures. The sequential Gaussian conditional simulation was used to assess uncertainty of grade estimates and illustrate......
J. Cent. South Univ. (2018) 25: 2258-2271 DOI: https://doi.org/10.1007/s11771-018-3911-8 Superposed disturbance mechanism of sequential overlying strata collapse for gob-side entry retaining... of Springer Nature 2018 Abstract: Gob-area roof rupture movement is a key disturbance factor for gob-side entry retaining. The characteristics of gob-area sequential roof collapse of overlying strata......
method based upon the strong ability to form complexes with metal ions [22]. A two-step sequential extraction, for example sulfuric acid and NaCl, has been testified to leach metal values including Pb, Zn... sulfuric acid leached residue reaches as high as 66.5% by using 0.1 mol/L EDTA-Na2 solution. The results indicate that two-step sequential extraction procedure combining 1.25 mol/L sulfuric acid......
