کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
582963 | 1453169 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies of removal of palladium(II) ions from chloride solutions on weakly and strongly basic anion exchangers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
Palladium and its compounds find wide application in industry as a catalytic agent in different manufacture processes. Recovery of precious metals from industrial wastes is difficult and time consuming but in spite of these disadvantages it becomes profitable. Palladium(II) ions sorption from various chloride solutions of the composition: 0.1-6.0Â M HCl-0.00056Â M Pd(II), 1.0Â M ZnCl2-0.1Â M HCl-0.00056Â M Pd(II), 1.0Â M AlCl3-0.1Â M HCl-0.00056Â M Pd(II) on the weakly and strongly basic anion exchangers (Varion ATM, Varion ADM and Varion ADAM) was discussed. The sorption research of Pd(II) ions on these resins was carried out by means of static and dynamic methods. The dynamic processes were applied in order to determine the breakthrough curves of Pd(II) ions. Moreover, the working ion-exchange capacities as well as the weight and bed distribution coefficients were determined from the Pd(II) breakthrough curves. The recovery factors of Pd(II) ions (% R) depending on the phase contact time were obtained by means of static methods. The highest ion-exchange capacities for the 0.1-6.0Â M HCl-0.00056Â M Pd(II) systems were obtained for the weakly basic ion-exchange resin Varion ADAM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 159, Issues 2â3, 30 November 2008, Pages 280-286
Journal: Journal of Hazardous Materials - Volume 159, Issues 2â3, 30 November 2008, Pages 280-286
نویسندگان
Z. Hubicki, A. WoÅowicz, M. LeszczyÅska,