| Separation of cadmium and nickel from waste Ni—Cd batteries |
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| 引用本文： | ZHUJianxin YUBo 等. Separation of cadmium and nickel from waste Ni—Cd batteries[J]. 稀有金属(英文版), 2002, 21(3): 234-237 |
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| 作者姓名： | ZHUJianxin YUBo 等 |
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| 作者单位： | [1]DeparmtnetofEnvironmentalEngineering,TsinghuaUniversity,Beijing100084,China [2]InstituteofNuclearEnergyTechnology,TsinghauUniversity,Beijing100084,China |
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| 摘 要： | To separate the cadmium and nickel resources in waste Ni-Cd batteries,a self-designed vacuum distillation recycling system was studied under laboratory conditions.The effects of system temperature,operating pressure,and time on the separation of Ni and Cd were studied respectively.The mechanism of vacuum thermal recycling was also discussed.Results show that vacuum distillation is a very effective separation method for waste Ni-Cd batteries.At a Constant pressure,the increase of temperature can improve the separating efficiency of Cd.When the temperature is 1173K,Cadmium can evaporate completely from the samples during 3h at 10Pa,The reduction of pressure in a certain range is effective to the separating of Cd from Ni-Cd batteries by vacuum distillation.
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| 关 键 词： | 废Ni－Cd电池 镉 镍 分离回收 |
Separation of cadmium and nickel from waste Ni-Cd batteries |
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| ZHUJianxin,YU Bo,Li Jinhui,Nie Yongfeng. Separation of cadmium and nickel from waste Ni-Cd batteries[J]. Rare Metals, 2002, 21(3): 234-237 |
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| Authors: | ZHUJianxin YU Bo Li Jinhui Nie Yongfeng |
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| Abstract: | To separate the cadmium and nickel resources in waste Ni-Cd batteries, a self-designed vacuum distillation recycling system was studied under laboratory conditions. The effects of system temperature, operating pressure, and time on the separation of Ni and Cd were studied respectively. The mechanism of vacuum thermal recycling was also discussed. Results show that vacuum distillation is a very effective separation method for waste Ni-Cd batteries. At a constant pressure, the increase of temperature can improve the separating efficiency of Cd. When the temperature is 1 173 K, cadmium can evaporate completely from the samples during 3 h at 10 Pa. The reduction of pressure in a certain range is effective to the separating of Cd from Ni-Cd batteries by vacuum distillation. |
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| Keywords: | waste Ni-Cd battery vacuum distillation resource separation |
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