| 氨法浸出提镉新工艺 |
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| 引用本文： | 何静,唐谟堂,刘维. 氨法浸出提镉新工艺[J]. 化工学报, 2006, 57(7): 1727-1731 |
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| 作者姓名： | 何静 唐谟堂 刘维 |
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| 作者单位： | 中南大学冶金科学与工程学院,湖南,长沙,410083;中南大学冶金科学与工程学院,湖南,长沙,410083;中南大学冶金科学与工程学院,湖南,长沙,410083 |
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| 摘 要： | 引言 镉是一种较稀有的元素,在自然界中以硫化镉矿物存在,但没有单独的矿床,常与铅、锌矿共生,其含镉为0.01%～0.7%,选矿时大部分进入锌精矿或铅锌混合精矿,几乎不进入铅矿[1].
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| 关 键 词： | 镉 氨法 浸出 |
| 文章编号： | 0438-1157（2006）07-1727-05 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005-08-252005-11-21 |
New process for extracting cadmium by ammonium-ammonia method |
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| HE Jing,TANG Motang,LIU Wei. New process for extracting cadmium by ammonium-ammonia method[J]. Journal of Chemical Industry and Engineering(China), 2006, 57(7): 1727-1731 |
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| Authors: | HE Jing TANG Motang LIU Wei |
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| Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083, H unan, China |
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| Abstract: | A new process was proposed for extracting cadmium from cadmium-containing raw materials by the ammonium-ammonia method.Investigation on leaching in the process for treating an electric precipitation dust from ISP sintering factory was carried out.The best conditions were established as follows:the ratio of liquid to solid was 2.5,［NH3］/［NH4+］=3/5,total concentration of ammonium and ammonia was 8 mol•L-1,the leaching time was 1.5 h at 35℃.Under the above conditions, leaching rate of cadmium and its concentration in the leached solution was 90.99% and 8.74 g•L-1,respectively. |
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| Keywords: | cadmium ammonium-ammonia method leaching |
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