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粉末冶金材料科学与工程  2019, Vol. 24 Issue (1): 21-26    
  工艺技术 本期目录 | 过刊浏览 | 高级检索 |
电解液循环方式对电解能耗及铜粉性能的影响
向小艳, 夏文堂, 杨文强, 尹建国
重庆科技学院 冶金与材料工程学院,重庆 401331
Effects of electrolyte circulation form on energy consumption and properties of electrolytic copper powder
XIANG Xiaoyan, XIA Wentang, YANG Wenqiang, YIN Jianguo
School of Metallurgical and Materials Engineering, University of Science and Technology, Chongqing 401331, China
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摘要 利用具有平行流进液装置的新型电解槽,在电解液总流量为18 L/min条件下,采用不同的进液模式制备电解铜粉,研究电解液进液方式对槽电压、电流效率、电解能耗和铜粉性能的影响,对电解法制备铜粉的节能降耗进行探索。结果表明,采用传统进液方式时能耗为3.01×106 kJ/t,电流效率为94.42%,铜粉粒度为3.47 μm,粒度分布集中;采用传统进液协同阴极双侧平行进液的方式能有效地降低电解过程的槽电压和电解能耗,并且随双侧平行进液流量增大,电流效率增加,能耗下降,但铜粉粒度增大。当双侧平行进液的喷液口流量为6 L/min时较合适,电解能耗较低,为2.55×106 kJ/t,铜粉的平均粒度为4.65 μm,95%以上的铜粉粒度小于7.2 μm,且铜粉具有明显的树枝状结构,与传统电解得到的铜粉性质相比没有明显差别;当喷液口流量进一步增大至9 L/min(即单独采用双侧平行喷液方式)时,电解能耗进一步下降至2.17×106 kJ/t,电流效率提高至96.95%,但铜粉粒度增加至45.76 μm,且粒度分布出现明显的分级。
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向小艳
夏文堂
杨文强
尹建国
关键词 电解铜粉新型电解槽电流效率电解能耗铜粉粒度    
Abstract:The electrolytic copper powder was prepared by using a new type of electrolytic cell with parallel feed device under the condition of total flow rate of 18 L/min. The effects of electrolyte feeding mode on cell voltage, current efficiency, energy consumption and copper powder properties were studied. The energy saving and consumption reduction of copper powder electrolysis process were also explored. The results show that the energy consumption is 3.01×106 kJ/t, the current efficiency is 94.42%, the particle size of copper powder is 3.47 μm, and the particle size distribution is concentrated by wing traditional injection method. The cell voltage and energy consumption of electrolysis process can be effectively reduced by using the traditional mode of parallel and bilateral flow. With the increase of the flow rate of bilateral parallel flow, the current efficiency increases and the energy consumption decreases, but the particle size of copper powder increases. When the flow rate of the spray nozzle is 6 L/min, the electrolysis energy consumption of 2.55×106 kJ/t is low, the average particle size of copper powder is 4.65 μm, the particle size of more than 95% copper powder is less than 7.2 μm, and the copper powder has obvious dendritic structure. There is no obvious difference in the properties of copper powder obtained from traditional electrolysis. When the nozzle flow rate further increases to 9 L/min, the energy consumption of electrolysis decreases to 2.17×106 kJ/t, and the current efficiency increases to 96.95%, but the particle size of copper powder increases to 45.76 μm, and the particle size distribution is obviously graded.
Key wordselectrolytic copper powder    new electrolytic cell    current efficiency    energy consumption    particle size of copper powder size
收稿日期: 2018-05-25      出版日期: 2019-07-12
ZTFLH:  TF811  
基金资助:国家自然科学基金资助项目(51604055,51674057); 重庆市教委科学技术研究项目(KJ1601306)
通讯作者: 夏文堂,教授。电话:13667677360;E-mail: wentangx@163.com   
引用本文:   
向小艳, 夏文堂, 杨文强, 尹建国. 电解液循环方式对电解能耗及铜粉性能的影响[J]. 粉末冶金材料科学与工程, 2019, 24(1): 21-26.
XIANG Xiaoyan, XIA Wentang, YANG Wenqiang, YIN Jianguo. Effects of electrolyte circulation form on energy consumption and properties of electrolytic copper powder. Materials Science and Engineering of Powder Metallurgy, 2019, 24(1): 21-26.
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