کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6658839 | 1425525 | 2018 | 63 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Factors affecting hematite precipitation and characterization of the product from simulated sulphate-chloride solutions at 150â¯Â°C
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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: Factors affecting hematite precipitation and characterization of the product from simulated sulphate-chloride solutions at 150â¯Â°C Factors affecting hematite precipitation and characterization of the product from simulated sulphate-chloride solutions at 150â¯Â°C](/preview/png/6658839.png)
چکیده انگلیسی
Precipitation of iron as hematite from acidic sulphate-chloride solutions was studied in a batch reactor at 150â¯Â°C. Several factors that either increase or decrease the extent of hematite precipitation (such as: sulphuric acid, chloride, seed, ferric iron, pre-neutralization, arsenic(V) and copper(II)) were studied. The presence of chloride in the solution increased the extent of hematite precipitation. The presence of low levels of arsenic(V) (<0.5â¯g/L) severely decreased the extent of precipitation. The presence of CuSO4 increased the extent of hematite precipitation. The nature of the product and uptake of elements from solution was affected by the acid levels and the nucleation and growth mechanism. Sulphate adsorption on hematite crystallites and incorporation of the hydroxyl ion into the hematite structure were found to be responsible for the broad and low intensity peaks of the hematite produced from a Fe(III)-Cu(II)-Cl-SO42â system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 179, August 2018, Pages 8-19
Journal: Hydrometallurgy - Volume 179, August 2018, Pages 8-19
نویسندگان
Tasawar Javed, Mingliang Xie, Edouard Asselin,