نوع مقاله: مقاله پژوهشی
نویسندگان
1 دانشکده مهندسی معدن، دانشگاه صنعتی امیرکبیر، صندوق پستی: 4413-15875، تهران-ایران
2 گروه پژوهشی شیمی، پژوهشکده علوم هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 836-14893، تهران ـ ایران
3 مرکز کانهآرایی، سازمان انرژی اتمی ایران، صندوق پستی: 1339-14155، تهران- ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Ferric ions in dilute acidic leach liquor of uranium ore of Saghand were separated by anion exchange resins. In this research, a simulated solution similar to the actual leach liquor of Saghand was prepared. The simulated solution which was containing chloride and ferric ions, rare earth elements, and some other impurities was treated by different types of Dowex anion exchange resins for ferric ions removal. It appeared that hydrochloric acidic concentration, resin types and particle sizes have a great impact on ferric ions adsorption. Dowex 1X4 (200-400 mesh) has the best adsorption of 91% in simulated solution and 79% in actual leach liquor of uranium ore of Saghand respectively.
کلیدواژهها [English]
P.A. Riveros, “The extraction of Fe(III) using cation-exchange carboxcylic resins”, Hydrometallurgy, 72, pp. 279-290 (2004).
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C.K. Gupta, “Extractive metallurgy of rare earths,” CRC Press, PP. 22-25 (2005).
P. Pohl, B. Prusisz, “Pre-concentration of Cd, Co, Cu, Ni and Zn using different off-line ion exchange procedures followed by the inductively coupled plasma atomic emission spectrometric detection”, Analytica Chimica Acta, 502 (2004).
T. Kekesi, K. Mimura, M. Isshiki, “Ultra-high purification of iron by anion exchange in hydrochloric acid solutions,” Hydrometallurgy, 63 (2002).