کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
234665 465427 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An investigation into the feasibility of recovering valuable metals from solid oxide compounds by gas phase extraction in a fluidised bed
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
An investigation into the feasibility of recovering valuable metals from solid oxide compounds by gas phase extraction in a fluidised bed
چکیده انگلیسی

Recent years have seen the application of the concept of fluidisation extended to different kinds of industrial processes. This technology now plays a central role in the chemical and petrochemical industries, in power generation and in mineral processing and metallurgy. The current research is directed towards gas-phase extraction of metals because of the high yield of recovery that can potentially be achieved. This process achieves the extraction of metals by using a volatile organic reagent, which passes through the feed material and reacts selectively with the metal to be extracted. The product is a volatile metal complex, which is removed from the residual gangue by a carrier gas.The results showed that the procedure could be successfully applied to recover aluminium, chromium, vanadium and iron with acetylacetone from their respective solid oxides in a fluidised bed. The percentage recovery ranged from 75.2% for iron to 48.2% for chromium. Kinetic investigations were performed to estimate the activation energy required for each reaction. The recovery of the metals depended on the temperature and reaction time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 19, Issue 2, February 2006, Pages 140–146
نویسندگان
, , , , ,