کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1639317 | 1517024 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dissolution kinetics of low grade complex copper ore in ammonia-ammonium chloride solution
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dissolution kinetics of low grade complex copper ore in ammonia-ammonium chloride solution Dissolution kinetics of low grade complex copper ore in ammonia-ammonium chloride solution](/preview/png/1639317.png)
چکیده انگلیسی
The leaching kinetics of Tang-dan refractory low grade complex copper ore was investigated in ammonia-ammonium chloride solution. The concentration of ammonia and ammonium chloride, the ore particle size, the solid-to-liquid ratio and the temperature were chosen as parameters in the experiments. The results show that temperature, concentration of ammonia and ammonium chloride have favorable influence on the leaching rate of copper oxide ores. But, leaching rate decreases with increasing particle size and solid-to-liquid ratio. The leaching process is controlled by the diffusion of the lixiviant and the activation energy is determined to be 23.279 kJ/mol. An equation was also proposed to describe the leaching kinetics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 5, May 2010, Pages 910-917
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 5, May 2010, Pages 910-917
نویسندگان
Wei LIU, Mo-tang TANG, Chao-bo TANG, Jing HE, Sheng-hai YANG, Jian-guang YANG,