کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4769067 1425538 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solvent extraction of Ce(III) from nitric acid medium using binary mixture of PC 88A and Cyanex 921
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Solvent extraction of Ce(III) from nitric acid medium using binary mixture of PC 88A and Cyanex 921
چکیده انگلیسی
The extraction behaviour of Ce(III) from dilute nitric acid medium using a binary mixture of PC 88A and Cyanex 921 has been investigated. Several process parameters such as contact time, concentration of nitric acid, nitrate ion, extractant, diluents and Ce(III) concentration in aqueous feed, organic to aqueous phase volume ratio and temperature were varied to observe the influence on the extraction and to optimize operating conditions. Experimental results demonstrated that extraction of 0.001 mol/L Ce(III) from 0.001 mol/L HNO3 was 96.6% with mixture of 0.7 mol/L PC 88A and 0.1 mol/L Cyanex 921. The extraction mechanism was established by applying method of slope analysis. Thermodynamic parameters were calculated from temperature variation studies. The loaded Ce(III) was effectively stripped using 0.6 mol/L HCl or 1.2 mol/L H2SO4. Extraction data were analysed using regression method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 166, December 2016, Pages 252-259
نویسندگان
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