共搜索到12193条信息,每页显示10条信息,共1220页。用时:0小时0分0秒343毫秒
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... and Environment, Central South University, Changsha 410083, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Water leaching of As2O3 from......
="ChDivSummary" name="ChDivSummary">In this work,a two-step zircon method to produce zirconium oxychloride was introduced,and the alkali fusion technique with NaOH and water leaching process were... are not observed.The conditions of water leaching process were investigated as well,and the optimal conditions are as follows:liquid-solid ratio of 5:1,leaching time of 0.5 h,leaching temperature of 50......
Investigation of the Leaching Behavior of Mortar Pipe Lining in Drinking Water高岳毅,张亚梅Department of Materials Science and Engineering, Southeast University, Jiangsu Key Laboratory of Construction Materials摘 要:The leaching behavior of three types of mortars was investigated using a self-design device which could simulate the field conditions of pipe......
Molybdenum recovery from oxygen pressure water leaching residue of Ni-Mo oreMing-Shuang Wang,Chang Wei,Gang Fan,Zhi-Gan Deng,Si-Fu Wang,Jun WuFaculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology摘 要:This article investigated molybdenum recovery from oxygen pressure water leaching residue of Ni-Mo ore using alkaline......
from complex sulfide concentrates was investigated via chlorination roasting followed by water leaching. A reaction process is proposed on the basis of previous studies and the results of our preliminary...,the removal of iron was studied in the water leaching stage. The results demonstrate that this process provides an effective approach for extracting multiple metals from complex concentrates or ores......
......
into water-soluble and acid-soluble hexavalent chromium according to their solubility. The water-solubility hexavalent chromium consists of Na2CrO4 from the leaching and baking process. And acid-solubility... of two-step procedure, a fast leaching and a slow leaching. In the fast leaching procedure, Cr(Ⅵ) is rapidly released into leachate because of presence of water soluble substances in chromium......
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......
. The reaction temperature was controlled by an isothermal water bath with a digital thermometer (within ±1 ℃). The reaction mixture was agitated at a fixed rate of 250 r/min. The effect of leaching time on metallic extraction was calculated by Eq.(6). At the end of leaching, the leached residue was ?ltered and washed with distilled water using a Büchner funnel. The leaching rates of metals (Ni, Co, etc......
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......