| Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis |
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| 引用本文： | 刘凤琴 刘业翔 Mannweiler U Perruchoud R. Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis[J]. 中南工业大学学报(英文版), 2006, 13(6): 647-652. DOI: 10.1007/s11771-006-0009-5 |
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| 作者姓名： | 刘凤琴 刘业翔 Mannweiler U Perruchoud R |
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| 作者单位： | [1]School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China [2]Zhengzhou Research institute, CHALCO, Zhengzhou 450041, China [3]Mannweiler Consulting, Hadlaubstrasse 71, CH-8006, Zuerich, Switzerland [4]R ＆ D Carbon Ltd., P.O. Box 362, CH-3960, Sierre, Switzerland |
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| 摘 要： | The properties and blending recipe of petroleum cokes used to make high quality carbon anodes for aluminium electrolysis were studied. Three kinds of green cokes were selected for bench scale study to illustrate the effects of cokes properties and its blending recipe on anode performances. The results show that impurities derived mainly fi＇om cokes remarkably affect the CO2 reactivity and air reactivity of carbon anodes. Ca, Na and V can increase CO2 reactivity of calcined cokes but S has the contrary effect, and the cokes of high V level generally present high air reactivity. The anodes with good quality can be made by properly selecting and scientifically blending of cokes, some poor quality cokes can also be used to produce high quality anodes with a reasonable blending recipe. Na contaminated anodes have high CO2 reactivity and air reactivity, so the recycled anode butts should be well cleaned to reduce Na content before being introduced into anode production, which is especially important to the low S cokes.
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| 关 键 词： | 碳阳极 石油焦 铝电解 焦碳性质 混料配方 |
| 收稿时间： | 2006-03-25 |
| 修稿时间： | 2006-04-27 |
Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis |
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| Liu Feng-qin , Liu Ye-xiang , Mannweiler U. and Perruchoud R.. Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis[J]. Journal of Central South University of Technology, 2006, 13(6): 647-652. DOI: 10.1007/s11771-006-0009-5 |
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| Authors: | Liu Feng-qin Liu Ye-xiang Mannweiler U. Perruchoud R. |
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| Affiliation: | (1) School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, China;(2) Zhengzhou Research Institute, CHALCO, Zhengzhou, 450041, China;(3) Mannweiler Consulting, Hadlaubstrasse 71, CH-8006 Zuerich, Switzerland;(4) R & D Carbon Ltd., P.O. Box 362, CH-3960 Sierre, Switzerland |
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| Abstract: | The properties and blending recipe of petroleum cokes used to make high quality carbon anodes for aluminium electrolysis were studied. Three kinds of green cokes were selected for bench scale study to illustrate the effects of cokes properties and its blending recipe on anode performances. The results show that impurities derived mainly from cokes remarkably affect the CO2 reactivity and air reactivity of carbon anodes. Ca, Na and V can increase CO2 reactivity of calcined cokes but S has the contrary effect, and the cokes of high V level generally present high air reactivity. The anodes with good quality can be made by properly selecting and scientifically blending of cokes, some poor quality cokes can also be used to produce high quality anodes with a reasonable blending recipe. Na contaminated anodes have high CO2 reactivity and air reactivity, so the recycled anode butts should be well cleaned to reduce Na content before being introduced into anode production, which is especially important to the low S cokes. |
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| Keywords: | petroleum coke blending recipe quality carbon anode,aluminium electrolysis |
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