کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10390038 | 884444 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ion-exchange properties and mobility of Cu2+ ions in zirconium hydrophosphate ion exchangers
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
Three types of inorganic ion exchangers based on zirconium hydrophosphate were synthesised using the following methods: (I) phosphatising of dried zirconium hydroxide gel; (II) phosphatising of makeup zirconium hydroxide gel; (III) mixing together of ZrOCl2 and H3PO4 solutions. The influence of synthesis conditions on exchange and kinetic properties of ion exchangers were analysed. It was found that the maximal molar P:Zr ratio in ion exchanger can be reached using method (II). Copper ion mobility in ion exchangers increases with increasing P:Zr ratio. The effective diffusion coefficients of Cu2+, which were obtained by kinetic methods at pH 2.5 reaches 1.8Â ÃÂ 10â13 to 7.7Â ÃÂ 10â13Â m2Â sâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 45, Issue 2, October 2005, Pages 141-146
Journal: Separation and Purification Technology - Volume 45, Issue 2, October 2005, Pages 141-146
نویسندگان
Yu.S. Dzyazko, L.M. Rozhdestvenska, A.V. Palchik, F. Lapicque,