کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1200237 1493578 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental productivity rate optimization of rare earth element separation through preparative solid phase extraction chromatography
ترجمه فارسی عنوان
بهینه سازی بهره وری بهره برداری از جداسازی عناصر کمیاب خاکی از طریق کروماتوگرافی استخراج فاز جامد
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Overloaded HPLC ion-exchange chromatography of Samarium, Europium and Gadolinium.
• Experimental productivity rate optimization.
• Single-step separation of Samarium, Europium and Gadolinium.
• Process data for batch-wise HPLC ion-exchange chromatography of Samarium, Europium and Gadolinium.
• Process scale up experiment of optimal operation point.

Separating individual rare earth elements from a complex mixture with several elements is difficult and this is emphasized for the middle elements: Samarium, Europium and Gadolinium. In this study we have accomplished an overloaded one-step separation of these rare earth elements through preparative ion-exchange high-performance liquid chromatography with an bis (2-ethylhexyl) phosphoric acid impregnated column and nitric acid as eluent. An inductively coupled plasma mass spectrometry unit was used for post column element detection. The main focus was to optimize the productivity rate, subject to a yield requirement of 80% and a purity requirement of 99% for each element, by varying the flow rate and batch load size. The optimal productivity rate in this study was 1.32 kg Samarium/(h mcolumn3), 0.38 kg Europium/(h mcolumn3) and 0.81 kg Gadolinium/(h mcolumn3).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1348, 27 June 2014, Pages 47–51
نویسندگان
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