کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9632596 | 462124 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Treatment of sulphate leach liquors to recover cobalt from waste dusts generated by the glass industry
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
A hydrometallurgical process has been developed for cobalt recovery from a waste dust formed during the colouring of glass plates. This dust, containing about 33% Co, is highly contaminated by Fe and Cr. The process consists of the following major steps: (1) leaching the dust in H2SO4; (2) purification of leach liquors by hydrolytic precipitation using Na2CO3 and/or K2CO3 as neutralizing agent; (3) precipitation of basic cobalt(II) carbonate; (4) dissolution of basic cobalt(II) carbonate in sulphuric acid and separation of residual chromium; (5) electrowinning of cobalt from refined sulphate solutions. A compact metallic deposit containing =99.5% Co was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 77, Issues 1â2, April 2005, Pages 67-73
Journal: Hydrometallurgy - Volume 77, Issues 1â2, April 2005, Pages 67-73
نویسندگان
J. Jandová, H. Vu, P. DvoÅák,