| Nickel electrodeposition from leaching solution containing ammonia and chloride |
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| 作者姓名： | 郑国渠 郑利峰 曹华珍 高志峰 倪似愚 张九渊 |
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| 作者单位： | College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China，College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China，College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China，College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China，College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China，College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014，China |
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| 基金项目： | Project ( 5 0 0 0 40 0 5)supportedbytheNationalNaturalScienceFoundationofChina |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｆｕｎｄａｍｅｎｔａｌａｓｐｅｃｔｓｏｆｎｉｃｋｅｌｅｌｅｃｔｒｏｄｅｐｏｓｉｔｉｏｎｗｅｒｅｓｔｕｄｉｅｄｂｙｖａｒｉｏｕｓａｐｐｒｏａｃｈｅｓｉｎｖｉｅｗｏｆｉｔｓｉｎｄｕｓｔｒｉ ａｌｉｎｔｅｒｅｓｔ16] .Ｇｅｎｅｒａｌｌｙ ,ｔｈｅｓｅｓｔｕｄｉｅｓｗｅｒｅｐｅｒｆｏｒｍｅｄｉｎｍｏｄｉｆｉｅｄｉｎｄｕｓｔｒｉａｌｂａｔｈｓｏｆｎｉｃｋｅｌｃｈｌｏｒｉｄｅｏｒｓｕｌｆａｔｅ ,ｕｓｕａｌｌｙｉｎｔｈｅｐｒｅｓｅｎｃｅｏｆｂｏｒｉｃａｃｉｄａｃｔｉｎｇａｓｂｕｆ…
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Nickel electrodeposition from leaching solution containing ammonia and chloride |
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| ZHENG Guo-qu,ZHENG Li-feng,CAO Hua-zhen,GAO Zhi-feng,NI Si-yu,ZHANG Jiu-yuan.Nickel electrodeposition from leaching solution containing ammonia and chloride[J].Transactions of Nonferrous Metals Society of China,2003,13(1). |
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| Authors: | ZHENG Guo-qu ZHENG Li-feng CAO Hua-zhen GAO Zhi-feng NI Si-yu ZHANG Jiu-yuan |
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| Abstract: | The effects of temperature, nickel concentration and current density on the current efficiency and the e-lectrolyzer voltage were investigated in the process of electrowinning nickel. The results show that the current effi-ciency is above 90 % under the various experimental conditions, and the electrolyzer voltage is less than that of tradi-tional electrolyzer system. Therefore, the optimized parameters, i.e. temperature of 50 C, current density of 400A/m2 , are determined. It is also elucidated that anodic product is high valent nickel compound in the process of elec-trodeposition in terms of X-ray diffraction and chemical analysis. The amount of solid product formed on the elec-trode surface decreases with an increase in ammonium chloride concentration by cyclic voltammetry analysis. It is al-so indicated that the anodic gas species are mainly composed of nitrogen by vapor phase chromatograph. |
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| Keywords: | nickel electrodeposition ammonia coordinate |
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