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Reductive Dissolution of Spinel-Type Iron Oxide by N2H4-Cu(I)-HNO3

  • Won, Hui Jun (Decommissioning Technology Research Division, Korea Atomic Energy Research Institute) ;
  • Chang, Na On (Decommissioning Technology Research Division, Korea Atomic Energy Research Institute) ;
  • Park, Sang Yoon (Decommissioning Technology Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, Seon Byeong (Decommissioning Technology Research Division, Korea Atomic Energy Research Institute)
  • Received : 2019.06.17
  • Accepted : 2019.07.05
  • Published : 2019.07.31

Abstract

A N2H4-Cu(I)-HNO3 solution was used to dissolve magnetite powders and a simulated oxide film on Inconel 600. The addition of Cu(I) ions to N2H4-HNO3 increased the dissolution rate of magnetite, and the reaction rate was found to depend on the solution pH, temperature, and [N2H4]. The dissolution of magnetite in the N2H4-Cu(I)-HNO3 solution followed the contracting core law. This suggests that the complexes of [Cu+(N2H4)] formed in the solution increased the dissolution rate. The dissolution reaction is explained by the complex formation, adsorption of the complexes onto the surface ferric ions of magnetite, and the effective electron transfer from the complexes to ferric ions. The oxide film formed on Inconel 600 is satisfactorily dissolved through the successive iteration of oxidation and reductive dissolution steps.

Keywords

References

  1. B. Issa, I. M. Obaidat, B. A. Abliss, and Y. Haik, "Magnetic Nanoparticles; Surface Effects and Properties Related to Biomedicine Applications," Int. J. Mol. Sci., 14 [11] 21266-305 (2013). https://doi.org/10.3390/ijms141121266
  2. V. S. Sathyaseelan, A. L. Rufus, P. Chandramohan, H. Subramanian, T. V. K. Mohan, and S. V. Narasimhan, "High Temperature Dissolution of Oxide Deposits Formed over Structural Materials under PHWR and BWR Chemistry Conditions," Prog. Nucl. Energy, 59 100-6 (2012). https://doi.org/10.1016/j.pnucene.2012.04.003
  3. L. A. G. Rodenas, M. A. Blesa, and P. J. Morando, "Reactivity of Metal Ocides: Thermal and Photochemical Dissolution of MO and $MFe_2O_4$ (M = Ni, Co, Zn)," J. Solid State Chem., 181 [9] 2350-58 (2008). https://doi.org/10.1016/j.jssc.2008.05.032
  4. S. J. Keny, A. G. Kumbhar, G. Venkateswaran, and K. Kishore, "Radiation Effects on the Dissolution Kinetics of Magnetite and Hematite in EDTA- and NTA- Based Dilute Chemical Decontamination Formulations," Radiat. Phys. Chem., 72 [4] 475-82 (2005). https://doi.org/10.1016/j.radphyschem.2003.12.055
  5. E. B. Borghi, A. E. Regazzoni, A. J. G. Maroto, and M. A. Blesa, "Reductive Dissolution of Magnetite by Solutions Containing EDTA and FeII," J. Colloid Interface Sci., 130 [2] 299-310 (1988). https://doi.org/10.1016/0021-9797(89)90109-4
  6. M. G. Segal and R. M. Sellers, "Reactions of Solid Iron(III) Oxides with Aqueous Reducing Agents," J. Chem. Soc., Chem. Commun., 1980 [21] 991-94 (1980). https://doi.org/10.1039/C39800000991
  7. E. Baumgartner, M. A. Blesa, N. Marinowich, and A. J. G. Maroto, "Heterogeneous Electrom Transfer as a Pathway in the Dissolution of Magnetite in Oxalic Acid Solutions," Inorg. Chem., 22 [16] 2224-26 (1983). https://doi.org/10.1021/ic00158a002
  8. A. M. Al-Mayouf and A. S. N. Al-Arifi, "Reductive Dissolution of Magnetite in Ethylene-Diaminedisuccinic Acid Solutions," Desalination, 182 [1-3] 233-41 (2005).
  9. V. I. E. Bruyere and M. A. Blesa, "Acidic and Reductive Dissolution of Magnetite in Aqueous Sulfuric Acid : Site Binding Model and Experimental Results," J. Electroanal. Chem. Interfacial Electrochem., 182 [1] 141-56 (1985). https://doi.org/10.1016/0368-1874(85)85447-2
  10. M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solutions; p. 386, National Association of Corrosion Engineers, Texas, 1974.
  11. J. P. Chen and L. L. Lim, "Key Factors in Chemical Reduction by Hydrazine for Recovery of Precious Metals," Chemosphere, 49 [4] 363-70 (2002). https://doi.org/10.1016/S0045-6535(02)00305-3
  12. A. K. Srivastava, A. L. Varshney, and P. C. Jain, "Complexes of Copper(II) with Substituted Hydrazine," J. Inorg. Nucl. Chem., 42 [1] 47-50 (1980). https://doi.org/10.1016/0022-1902(80)80041-8
  13. D. B. Brown, J. A. Donner, J. W. Hall, S. R. Wilson, R. B. Wilson, D. K. Hodgson, and W. E. Hatfield, "Interaction of Hydrazine with Copper(II) Chloride in Acidic Media. Formation, Spectral and Magnetic Properties, and Structures of Copper (II), Copper (I), and Mixed-Valence Species," Inorg. Chem., 18 [10] 2635-41 (1979). https://doi.org/10.1021/ic50200a001
  14. M. F. Iskander, S. E. Zayan, M. A. Khalifa, and L. El- Sayed, "Coordination Compounds of Hydrazine Derivatives with Transition Metals- VI: The Reaction of Aroylhydrazines with Nickel (II), Cobalt (II) and Copper (II) Salts," J. Inorg. Nucl. Chem., 36 [3] 551-56 (1974). https://doi.org/10.1016/0022-1902(74)80112-0
  15. A. A. M. Prince, S. Velmurugan, S. V. Narashimhan, C. Ramesh, N. Murugesan, P. S. Raghavan, and R. Gopalan, "Dissolution Behaviour of Magnetite Film Formed over Carbon Steel in Dilute Organic Acid Media," J. Nucl. Mater., 289 [3] 281-90 (2001). https://doi.org/10.1016/S0022-3115(01)00425-1
  16. H. J. Won, J. S. Park, C. H. Jung, S. Y. Park, W. K. Choi, and J. K. Moon, "A Reductive Dissolution Study of Magnetite"; pp. V002T03A021 in Proceedings of the 5th ASME International Conference on Environmental Remediation and Radioactive Waste Management ICEM2013-96101, Brussels, Belgium, 2013.

Cited by

  1. Hydrazine Radiolysis by Gamma-Ray in the N2H4-Cu+-HNO3 System vol.22, pp.14, 2019, https://doi.org/10.3390/ijms22147376