کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
212782 462067 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Recovery of vanadium, potassium and iron from a spent catalyst using urea solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Recovery of vanadium, potassium and iron from a spent catalyst using urea solution
چکیده انگلیسی

A spent vanadium catalyst was leached in a urea solution to recover vanadium, potassium and iron. The effect of time, temperature, pH, concentration of urea, phase ratio and catalyst particle size was studied. Results showed that for 180–250 μm catalyst leached for 1 h at 20 °C in the presence of 40% urea solution at a liquid:solid ratio of 10:1, the extent of leaching of V, K and Fe were about 78%, 90% and 29% respectively. A flowsheet for the proposed process is presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 103, Issues 1–4, June 2010, Pages 19–24
نویسندگان
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