کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
212131 462034 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation of hafnium and zirconium using TBP modified ferromagnetic nanoparticles: Effects of acid and metals concentrations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Separation of hafnium and zirconium using TBP modified ferromagnetic nanoparticles: Effects of acid and metals concentrations
چکیده انگلیسی


• Tributylphosphate modified magnetic nanoparticles separated hafnium from zirconium.
• Type and concentration of acid, Hf and Zr ion concentration were investigated.
• 4 M HCl, 10 ppm Zr and 7.5 ppm Hf ion concentration give the best results.
• SF in extraction and stripping stages were obtained 1.4 and 12.3, respectively.

In the magnetically assisted chemical separation (MACS) process, ferromagnetic nanoparticles modified by solvent extractant are used to separate hafnium from zirconium. The contaminant-loaded nanoparticles are recovered using a magnetic field. The contaminants attached to the magnetic nanoparticles are subsequently removed using a small volume of stripping agent. In this study, tributylphosphate (TBP) modified magnetic nanoparticles with particle size of 10 nm were evaluated for the extraction and separation of hafnium from zirconium. Laboratory scale investigations were carried out on the effects of type and concentration of acid, and also concentration of Hf and Zr ions on the efficiency of extraction and separation stages. It was found that 4 M hydrochloric acid, 10 ppm Zr and 7.5 ppm Hf ions gave the best results with SF = 1.4 and 1.5 for the extraction and stripping stages, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 146, May 2014, Pages 72–75
نویسندگان
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