کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
643031 | 884352 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies on the synergistic extraction of rare earths from nitrate medium with mixtures of sec-nonylphenoxy acetic acid and 1,10-phenanthroline
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The extraction of rare earths with mixtures of sec-nonylphenoxy acetic acid (CA100, H2A2) and 1,10-phenanthroline (phen, B) in benzene has been investigated from nitrate medium. The mixtures show synergistic effects on all the selected rare earths, lanthanum, neodymium, samarium, terbium, ytterbium, and yttrium. The extraction stoichiometries of samarium and yttrium with CA100 and its mixtures with phen have been studied in detail with the methods of slope analysis and constant mole. The equilibrium constants and thermodynamic functions are calculated. In addition, the mixtures are proved to have higher selectivity when applied to the separation of the lanthanoids from yttrium compared with single CA100 system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 71, Issue 2, 18 February 2010, Pages 241–245
Journal: Separation and Purification Technology - Volume 71, Issue 2, 18 February 2010, Pages 241–245
نویسندگان
Shujuan Fan, Xiaowei Zhao, Naizhong Song, Yunfeng Shi, Qiong Jia, Wuping Liao,