Extraction of Zirconium and Hafnium by Solvent Extraction Using Cyanex 302
In this study the extraction of zirconium and hafnium has been investigated by solvent extraction using Cyanex 302 in various media such as nitric, sulfuric and hydrochloric acid has been investigated. Effect of various parameters such as type and acid concentration, extractam concentration,type of diluent, equilibrium time, various foreign ions and finally type and concentration of stripping agent have been studied. The results showed that nitric acid was optimum media for extraction of zirconium and hafnium. The extraction of zirconium and hafnium occurred quantitatively in the concentration of higher than 4 M nitric acid hut in hydrochloric acid media, quantitative extraction obtains over 8 M HCI. In sulfuric acid media, extraction of zirconium and hafnium is negligible.Stripping studies showed that the optimum reagent for stripping was 0.5M sulfuric acid.
Zirconium Hafnium Solvent extraction Cyanex 302
K. Saberyan P. Vahedian M. Noparast E. Zolfonoun
Advanced Materials Research Group,Material Research School, Nuclear Science and Technology Research Mineral processing, Department of Mining Engineering, Islamic Azad University,Science and Research B Mineral processing, Department of Mining Engineering, Islamic Azad University,Science and Research B
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
2853-2856
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）