کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
234137 | 465388 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Upgrading of a chalcopyrite concentrate by reaction with copper(II) and sulfite – Unexpected formation of Chevreul’s salt, Cu2SO3·CuSO3·2H2O
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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: Upgrading of a chalcopyrite concentrate by reaction with copper(II) and sulfite – Unexpected formation of Chevreul’s salt, Cu2SO3·CuSO3·2H2O Upgrading of a chalcopyrite concentrate by reaction with copper(II) and sulfite – Unexpected formation of Chevreul’s salt, Cu2SO3·CuSO3·2H2O](/preview/png/234137.png)
چکیده انگلیسی
Recovery of aqueous copper(II) onto a chalcopyrite concentrate was shown to be rapid at 60 °C in the presence of S(IV), in this case sulfite. Surprisingly, rather than partial conversion of chalcopyrite to a copper sulfide such as chalcocite or covellite, copper was removed from solution by precipitation of a mixed-valence copper sulfite, Chevreul’s salt (Cu2SO3·CuSO3·2H2O). This has application as a way to increase the copper grade of chalcopyrite concentrates using the leachate from a Galvanox™ leach of flotation tailings, offering several advantages over similar processes employing an autoclave to effect copper precipitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 23, Issue 9, August 2010, Pages 746–751
Journal: Minerals Engineering - Volume 23, Issue 9, August 2010, Pages 746–751
نویسندگان
Adam J. Fischmann, David G. Dixon,