مجله علوم، مهندسی و فناوری هسته‌ای

Novel Method for Stripping of Molybdenum (VI) after its Extraction with Cyanex 301

نوع مقاله : مقاله پژوهشی

نویسندگان

K Saberian
M Ghannadi Maraghe

Jaber Ibn Hayan Research Laboratories, AEOI, Tehran -Iran

چکیده
Hydrofluoric acid has been used as a novel stripping agent for molybdenum (VI) after its extraction with Cyanex 301. In the extraction steps effects of parameters such as type and initial concentration of acid, type of diluent, extractant concentration, metal concentration and temperature have been studied. In thestripping step, the effects of various stripping agents on stripping efficiency have been investigated. Also, the effects of concentration of hydrofluoric acid, stripping time, volume of hydrofluoric acid and numbers of stages of stripping have been studied. Molybdenum (VI) has been effectively separated from a large number of elements in binary mixtures with very high tolerance limits. Finally, the optimized method has been extended tothe analysis of Mo (VI) in spent molybdenum catalysts.

کلیدواژه‌ها

stripping
molybdenum(VI)
cyanex 301

عنوان مقاله English

Novel Method for Stripping of Molybdenum (VI) after its Extraction with Cyanex 301

نویسندگان English

K Saberian
M Ghannadi Maraghe
چکیده English

Hydrofluoric acid has been used as a novel stripping agent for molybdenum (VI) after its extraction with Cyanex 301. In the extraction steps effects of parameters such as type and initial concentration of acid, type of diluent, extractant concentration, metal concentration and temperature have been studied. In thestripping step, the effects of various stripping agents on stripping efficiency have been investigated. Also, the effects of concentration of hydrofluoric acid, stripping time, volume of hydrofluoric acid and numbers of stages of stripping have been studied. Molybdenum (VI) has been effectively separated from a large number of elements in binary mixtures with very high tolerance limits. Finally, the optimized method has been extended tothe analysis of Mo (VI) in spent molybdenum catalysts.

کلیدواژه‌ها English

stripping
molybdenum(VI)
cyanex 301

  1.  

     

     

     

    1. 1.       G. F. Vandegrift, J. D. Kowk, S. L. Marshall, D. R. Vissers, J. C. Matos, “Continuing investigation for technology assessment of Mo-99 production from LEU targets,”  IAEA-TECDOC, 515 (1989).

     

    1. 2.       P. Behera, S. Mishra, J. Mohanty, V. Chakravortty, “Solvent Extraction of Uranium(VI) and molybdenum(VI) by alamine 310 and its mixtures from aqueous H3PO4 solution,” Radiochim. Acta 4(65), 233-237 (1994).

     

    1. 3.       C. Brassier lecarme, P. Baron, J. I. Chevalier, C. Madic, “Acidic organophosphorus solvent extraction process for the purification of molybdenum in tailings from uranium ore treatment,” Hydrometallurgy 47, 57-7 (1997).

     

     

     
       

     

     

    1. 4.       C. C. Chen, W. L. Cheng, G. Ting, “Solvent Extraction study on the separation of molybdenum-99 and uranium in sulfuric acid medium by D2EHPA in kerosene,” Nucl. Sci. J.  23(4), 215-223 (1986).

     

    1. 5.       E. Oezensoy, A. R. Burkin, “Separation of tungsten and molybdenum by solvent extraction,” U. S. Patent 4, 275-239 (1981).

     

    1. 6.       T. Sato, H. Watanabe, H. Suzuki, “Liquid-liquid extraction of molybdenum from aqueous sulfuric acid solution by high-molecular weight amines,” Solvent Extr. Ion Exch. 5 (4), 987-998 (1986).

     

    1. 7.       R. Shanker, K. S. Venkateswarlu, “Solvent extraction of molybdenum and technetium with alamine 336 from acid solutions,” Sep. Sci. 6(11), 591-596 (1976).

     



    1. 8.       P. Zhang, K. Inoue, H. Yoshizuka, H. Tsuyama, “Extraction and selective stripping of molybdenum(VI) and vanadium(VI) from sulfuric acid solution containing aluminum(III), cobalt(II), nickel(III) and iron(III) by LIX 63 in EXXSOL D80,” Hydrometallurgy 1(41), 45-53 (1996).

     

    1. 9.       I. Komasawa, H. Hosoba, N. Kurokawa, T. J. Otake, “Extraction of molybdenum and vanadium from hydrochloric acid by tri-n-butyl phosphate (TBP) in various diluent solutions,” Chem. Eng. Jpn. 2 (20), 176-182 (1987).

     

    1. 10.   I. Komasawa, H. Hosoba, T. Otake, “Solvent extraction process for separation and purification of molybdenum and vanadium by tri-n-butyl phosphate (TBP) in xylene,” Chem. Eng. Jpn. 2(20), 183-185 (1987).

     

    1. 11.   T. Sato, H. Watanabe, H. Suzuki, “Liquid-liquid extraction of molybdenum(VI) from aqueous acid solution by TBP and TOPO,” Hydrometallurgy 2–3 (23), 297-308 (1990).

     

    1. 12.   W. L. Cheng, C. S. Lee, C. C. Chen, G. Ting, “process study on the separation of MO-99 from Irradiated natural Uranium Dioxide,” Radiochimica Acta 47, 69-76 (1989).

     

    1. 13.   K. Natio, T. Matsui, Y. J. Tanaka, “Recovery of nobel metals from insoluble residue of spent fuel” Nucl. Sci. Technol,” (Japan) 6(23), 540-549 (1986).

     

    1. 14.   P. Navarro, F. J. Alguacil, “Extraction of Mo(VI) solution in nitric mrdia by alamine 336 or aliquat 336,” Rev. Metal. (Madrid) 6(31), 379-385 (1995).
    2. 15.   F. R. Valenzuela, J. P. Andrade, J. Sapag, C. Tapia, C. Basualto, “The solvent extraction separation of molybdenum and copper from acid leach residual solution of Chilean molybdenite concentrate,” Miner. Eng. 8(8), 893-904 (1995).

     

    1. 16.   B. S. Mohite, J. M. Patil, “Separation of molybdenum(VI) from other elements by solvent extraction with Dibenzo-18-Crown-6 from hydrochloric acid medium,” J. Radioanal. Nucl. Chem. 150(1), 207-216 (1991).

     

    1. 17.   W. J. Maeck, M. E. Kussy, J. E. Rein, “radiochemical determination of molybdenum by solvent extraction,” Anal. Chem. 33(2), 237-238 (1961).

     

    1. 18.   A. G. C. Nair, S. K. Das, S. M. Deshmukh, S. Prakash, “Carrier free separation of Mo-99 from U-233 fission products,” Radiochimica. Acta  57, 29-31 (1992).

     

    1. 19.   E. Keshavarz Alamdari, S. K. Sadrnezhaad, “Thermodynamics of extraction of MoO42-  from aqueous sulfuric acid media with TBP dissolved in kerosene,” Hydrometallurgy 55, 327-341 (2000).

     

    1. 20.   K. C. Sole, J. B. Hiskey, T. L. Ferguson, “An assessment of the long-term stabilities of Cyanex-302 and Cyanex-301 in sulfuric and nitric acids,” Solvent Extr. Ion Exch. 11(5), 783-796 (1993).

     

    21. J. Chen, R. Jiao, Y. Zhu, “A study on the radiolytic stability of commerical an purified cyanex 301,” Solvent Extr. Ion Exch. 14(4), 555-565 (1996).

صفحه اصلی