کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
213242 | 462089 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dissolution kinetics of ulexite in ammonium nitrate solutions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study the dissolution kinetics of the boron mineral ulexite, a sodium-calcium-borate hydrate (Na2O·2CaO·5B2O3·16H2O), in ammonium nitrate solutions was investigated in a batch reactor. The effects of solution concentration, particle size, solid/liquid ratio, and reaction temperature on the dissolution rate were determined. It was found that the dissolution rate increased with increase in ammonium nitrate concentration and reaction temperature, and with decrease in particle size and solid/liquid ratio. No effect of stirring speed was observed on the conversion. It was determined that the dissolution rate fit to the chemical reaction control model. The activation energy of this dissolution process was found to be 58.2 kJ/mol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 95, Issues 3–4, February 2009, Pages 198–202
Journal: Hydrometallurgy - Volume 95, Issues 3–4, February 2009, Pages 198–202
نویسندگان
Nizamettin Demirkıran,