| Leaching of complex sulphide concentrate in acidic cupric chloride solutions |
| |
| 引用本文： | M. TCHOUMOU M. ROYNETTE. Leaching of complex sulphide concentrate in acidic cupric chloride solutions[J]. 中国有色金属学会会刊, 2007, 17(2): 423-428. DOI: 10.1016/S1003-6326(07)60109-5 |
| |
| 作者姓名： | M. TCHOUMOU M. ROYNETTE |
| |
| 作者单位： | [1]Faculty of Science, Marien Ngouabi University, Brazzaville, Congo [2]Laboratory of Applied Electrochemistry, EHICS, Louis Pasteur University, Strasbourg, France |
| |
| 摘 要： | The chemical analysis of a complex sulphide concentrate by emission spectrometry and X-ray diffraction shows that it contains essentially copper, lead, zinc and iron in the form of chalcopyrite, sphalerite and galena. A small amount of pyrite is also present in the ore but does not be detected with X-ray diffraction. The cupric chloride leaching of the sulphide concentrate at various durations and solid/liquid ratios at 100 ℃ shows that the rate of dissolution of the ore is the fastest in the first several hours, and after 12 h it does not evolve significantly. If oxygen is excluded from the aqueous cupric chloride solution during the leaching experiment at 100 ℃, the pyrite in the ore will not be leached. The determination of principal dissolved metals in the leaching liquor by flame atomic absorption spectrometry, and the chemical analysis of solid residues by emission spectrometry and X-ray diffraction allow to conclude that the rate of dissolution of the minerals contained in the complex sulphide concentrate are in the order of galena 〉 sphalerite 〉 chalcopyrite.
|
| 关 键 词： | 酸性氯化铜溶液 复合硫化物精矿 浸出 溶出速度 |
| 收稿时间： | 2006-04-24 |
| 修稿时间： | 2006-12-04 |
Leaching of complex sulphide concentrate in acidic cupric chloride solutions |
| |
| M. TCHOUMOU,M. ROYNETTE. Leaching of complex sulphide concentrate in acidic cupric chloride solutions[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(2): 423-428. DOI: 10.1016/S1003-6326(07)60109-5 |
| |
| Authors: | M. TCHOUMOU M. ROYNETTE |
| |
| Affiliation: | 1. Faculty of Science, Marien Ngouabi University, Brazzaville, Congo;2. Laboratory of Applied Electrochemistry, EHICS, Louis Pasteur University, Strasbourg, France |
| |
| Abstract: | The chemical analysis of a complex sulphide concentrate by emission spectrometry and X-ray diffraction shows that it contains essentially copper, lead, zinc and iron in the form of chalcopyrite, sphalerite and galena. A small amount of pyrite is also present in the ore but does not be detected with X-ray diffraction. The cupric chloride leaching of the sulphide concentrate at various durations and solid/liquid ratios at 100 °C shows that the rate of dissolution of the ore is the fastest in the first several hours, and after 12 h it does not evolve significantly. If oxygen is excluded from the aqueous cupric chloride solution during the leaching experiment at 100 °C, the pyrite in the ore will not be leached. The determination of principal dissolved metals in the leaching liquor by flame atomic absorption spectrometry, and the chemical analysis of solid residues by emission spectrometry and X-ray diffraction allow to conclude that the rate of dissolution of the minerals contained in the complex sulphide concentrate are in the order of galena >sphalerite>chalcopyrite. |
| |
| Keywords: | sulphide concentrate rate of dissolution dissolved metals solid residue |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
