共搜索到15371条信息，每页显示10条信息，共1538页。用时：0小时0分0秒578毫秒
Dissolution kinetics of low grade complex copper ore in ammonia-ammonium chloride solution LIU Wei(刘 维), TANG Mo-tang(唐谟堂), TANG Chao-bo(唐朝波), HE Jing(何 静), YANG Sheng-hai(杨声海),YANG Jian-guang(杨建... complex copper ore was investigated in ammonia-ammonium chloride solution. The concentration of ammonia and ammonium chloride, the ore particle size, the solid-to-liquid ratio and the temperature......
of zinc, iron (III), aluminum, copper and magnesium were calculated. As a result, it shows that the proposed formula is reliable. By the proposed formula, the existence state of metal ions... and another few metals, most metal hydroxide solution contain precipitates () and complex ions () [14-16]. Therefore, the quantitative description and reasonable explanation for the distribution of metal ions......
ions coordinate with the ammonia as the different complex in solution. At the same time, the concentration of copper hydroxide compounds increases gradually with pH increasing. It should be noted... hydroxide compounds and copper ammonia complex plays important roles on the total concentration of copper ions. Fig.4 indicates the change trends of concentration of different copper ammonia compounds, which......
......
of the copper cyanide complex ions that had a variety of balances, and gradually generated stable copper cyanide complex [17]. Different from chalcopyrite, the adsorption quantity of CN... The adsorption of CN- on the surface of chalcopyrite and galena was investigated by the cyanide tests. According to the reaction mechanism of cyanide ions and silver ions in solution, CN- concentration......
......
and thiourea leaching. The extraction rate of copper achieves 96%, and the leaching rates of lead and silver reach 90% and 95%, respectively. Key words: complex Cu concentrates; oxygen pressure acid leaching... location is also more flexible without the restrictions of sulfuric acid sales. The technologies and chemical principle utilizing Gacun complex copper concentrates by oxygen pressure acid leaching......
Synthesis, Crystal Structure and Magnetic Behaviour of Three Dimensional Iron-Cerium Cyanide Bridged Bimetallic Assembly 向华1,计亮年2,毛宗万2,鲁统部2 (1.欧阳凤强;2.Department of Chemistry, Zhongshan University,) Abstract:The complex with the formula ［CeFe(CN)6(H2O)3］.2H2O was synthesized and structurally characterized. It crystallizes in hexagonal, space group P3, a＝0.75320(10) nm, b＝0.75320(10) nm, c......
J. Cent. South Univ. (2021) 28: 2010-2021 DOI: https://doi.org/10.1007/s11771-021-4749-z Iron and copper recovery from copper slags through smelting with waste cathode carbon from aluminium electrolysis MAO Kai-xuan(毛凯旋)1, 2, 3, LI Lei(李磊)1, 2, 3, XU Miao(徐苗)1, 2, 3 1. State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology......
Article ID: 1003-6326(2005)03-0706-05 Copper electrodeposition from cuprous chloride solutions containing lead, zinc or iron ions M.Tchoumou1, M.Roynette Ehics2 (1. Faculty of Science... deposits. During electrodeposition of copper from cuprous solution in the presence of various concentrations of lead, zinc or iron ions at different current densities, it is observed that lead is codeposited......
