کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10280131 | 465468 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of carbon coatings on gold dissolution in the presence of sulphide and 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: Effect of carbon coatings on gold dissolution in the presence of sulphide and lead Effect of carbon coatings on gold dissolution in the presence of sulphide and lead](/preview/png/10280131.png)
چکیده انگلیسی
SEM analysis revealed much less erosion of gold occurring with the addition of sulphide. The gold surface showed highly corroded spots scattered across relatively less corroded areas during leaching with the addition of lead, while the gold surface was smooth after leaching with a carbon coating. An XPS investigation indicated the formation of AuSx at the gold surface with the addition of sulphide. Metallic lead or AuPb alloys and lead hydroxide were detected at the gold surface after leaching with the addition of lead. The carbon coating hindered the diffusion of lead to the gold surface and hence reduced the beneficial effect of lead on gold dissolution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 18, Issue 15, December 2005, Pages 1361-1372
Journal: Minerals Engineering - Volume 18, Issue 15, December 2005, Pages 1361-1372
نویسندگان
H. Tan, D. Feng, G.C. Lukey, J.S.J. van Deventer,