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/L during the chalcopyrite oxidative leaching process. 3.4 Effect of partial oxygen pressure Firstly, O2 diffuses into water from the gas/liquid interface and then diffuses furthermore... Kinetic process of oxidative leaching of chalcopyrite under low oxygen pressure and low temperature QIU Ting-sheng(邱廷省)1, NIE Guang-hua(聂光华)2, WANG Jun-feng(王俊峰)1, CUI Li-feng(崔立凤)1 1. School......
is washed with hot water. Lead in the leaching residue must be removed for further concentrating gold. Based on the solubility of lead chloride at different temperatures, the method of washing with hot water is adopted to remove lead chloride. The leaching residue is washed firstly by hot hydrochloric acid of 4 mol/L for avoiding hydrolysis of SbCl3, and then washed with hot water of 95 ℃ for removing......
Chlorination roasting-coupled water leaching process for potash recovery from waste mica scrap using dry marble sludge powder and sodium chlorideSandeep Kumar Jena,Jogeshwar Sahu,Geetikamayee Padhy... roasting–water leaching method. Characterization studies indicated the presence of dolomite as the major mineral phase in MSP, whereas muscovite and quartz were observed in the mica sample. The acid......
, WANG Zhi-xing, WANG Jie-xi, GUO Hua-jun, HU Qi-yang, PENG Wen-jie, WU Xi-fei. Extraction of lithium from lepidolite using chlorination roasting–water leaching process [J]. Transactions of Nonferrous... leaching [J]. Hydrometallurgy, 2015, 153: 154-159. DOI: 10.1016/j.hydromet.2015.03.002. [18] LEE J. Extraction of lithium from lepidolite using mixed grinding with sodium sulfide followed by water......
Effect of water on behaviour of Na2B4O7·5H2O and Na2B4O7 in HCl-CH3OH medium A. E. ERTAS, ?. GIRGIN Mining Engineering Department, Hacettepe University, Ankara 06800, Turkey Received 2... at the CH3OH/B mole ratio of 4. The decrease of water in the reaction medium was observed to increase the crystallization of NaCl in the order of Na2B4O7>Na2B4O7·5H2O. It was also observed......
were of analytical grade and all solutions were made with distilled water. Metal content was analyzed by atomic absorption spectrometry (Perkin-Elmer). 2.2 Equipment The leaching was carried out... Pressure acid leaching of zinc sulfide concentrate GU Yan(古 岩), ZHANG Ting-an(张廷安), LIU Yan(刘 燕), MU Wang-zhong(牟望重), ZHANG Wei-guang(张伟光),DOU Zhi-he(豆志河), JIANG Xiao-li(蒋孝丽) Key......
; 15-Agitator blade heater wire) Figure 3 Flowchart of process of pressurized leaching of artificial sphalerite 1000 mL high purity water and 40.0 g artificial sphalerite were placed in the potential... J. Cent. South Univ. (2020) 27: 1703-1713 DOI: https://doi.org/10.1007/s11771-020-4401-3 Oxygen pressure acid leaching of artificial sphalerite catalyzed by Fe3+/Fe2+ self-precipitation TIAN Lei(田磊......
Dynamics in simultaneous electro-generative leaching for sphalerite-MnO2 XIAO Li(肖 利)1, 3, QIU Guan-zhou(邱冠周)2, FANG Zheng(方 正)1, LIU Jian-she(柳建设)2 1. School of Chemistry and Chemical...; Abstract: The principle for the electro-generative leaching was applied to simultaneous leaching of sphalerite-MnO2. A galvanic system......
Trans. Nonferrous Met. Soc. China 27(2017) 1180-1187 Recovery of valuable metals from zinc leaching residue by sulfate roasting and water leaching Guo-min JIANG1,3, Bing PENG1,2, Yan-jie LIANG1,2, Li... and water leaching was employed to recover the valuable metals from ZLR. The ZLR was initially roasted with ferric sulfate at 640 °C for 1 h with ferric sulfate/zinc ferrite mole ratio of 1.2.......
J. Cent. South Univ. Technol. (2011) 18: 1200-1210 DOI: 10.1007/s11771-011-0823-2 Multi-objective optimization for leaching process using improved two-stage guide PSO algorithm HU Guang-hao(胡广浩... Heidelberg 2011 Abstract: A mathematical mechanism model was proposed for the description and analysis of the heat-stirring-acid leaching process. The model is proved to be effective by experiment......