کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10280117 | 465467 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of gold and a gold-10% silver alloy dissolution in aqueous cyanide in the presence of lead
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Kinetics of gold and a gold-10% silver alloy dissolution in aqueous cyanide in the presence of lead Kinetics of gold and a gold-10% silver alloy dissolution in aqueous cyanide in the presence of lead](/preview/png/10280117.png)
چکیده انگلیسی
The influence of lead additions on the anodic behaviour of gold and a gold-silver alloy in cyanide solution and on the cathodic reduction of oxygen on these metals was studied using potentiodynamic polarization measurements. It was found that lead additions increased the anodic activity of the gold, as well as that of the gold-silver alloy just positive of the open circuit potential, but only that of the gold-silver alloy at more positive potentials. However, lead additions also increased the rate of oxygen reduction on both metals, such that the dissolution rate, as predicted using the mixed potential theory, increased significantly with lead additions; this increase in rate was the result of the increase in the rate of the reduction of oxygen rather than the increase in the anodic activity of the alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 18, Issue 6, May 2005, Pages 585-590
Journal: Minerals Engineering - Volume 18, Issue 6, May 2005, Pages 585-590
نویسندگان
K. Cerovic, H. Hutchison, R.F. Sandenbergh,