Abstract
The presence of caustic soda in the spent sodium borohydride (NaBH4) fuel in high concentrations creates environmental problems associated with the transportation and the disposal of the fuel, orits recycling into NaBH4. It is clear that the high level of caustic soda in the spent fuel requires efficient and proper formulation of its industrial recycling applications. The present study regards the conversion process of the caustic soda present in high concentrations in spent NaBH4 fuels. Properties of the caustic used in NaBH4 fuel is characterized using a comprehensive technique. A specific application is presented here, which includes the treatment of the spent fuel solution with anhydrous borax (Na2B4O7) at 90 °C for 3 h followed by calcination after the crystallization, resulting in the conversion of this highly caustic spent NaBH4 fuel into sodium metaborate (NaBO2), which is an environmentally friendlier and an economically valuable material.
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Abbreviations
- m (g):
-
The amount of Na2B4O7
- T m [°C]:
-
Maximum temperature
- x 1, x 2, x 3, x 4 :
-
Mole
- λ [nm]:
-
Wavelength
References
H.I. Schlesinger, H.C. Brown, A.E. Finholt, J.R. Gilbreath, H.R. Hoekstra, E.K. Hyde, J. Am. Chem. Soc. 75, 215 (1953)
H. Dai, Y. Liang, P. Wang, Catal. Today 170(1), 27 (2011)
S.C. Amendola, S.C.L. Sharp-Goldman, M.S. Janjua, N.C. Spencer, M.T. Kelly, P.J. Petillo, M. Binder, Int. J. Hydrogen Energy 25(10), 969 (2000)
R. Chamoun, B. Demirci, D. Cornu, Y. Zaatar, R. Khoury, A. Khoury, P. Miele, Fuel 90, 1919 (2011)
Y. Huang, Y.W.R. Zhao, P.K. Shen, Z. Wei, Int. J. Hydrogen Energy 33(23), 7110 (2008)
J.H. Kim, H. Lee, S.C. Han, J.Y. Lee, Int. J. Hydrogen Energy 29, 263 (2004)
Y.C. Lu, M.S. Chen, Y.W. Chen, Int. J. Hydrogen Energy 37(5), 4254 (2012). doi:10.1016/j.ijhydene.2011.11.105
B.H. Liu, Z.P. Li, J. Power Sources 187, 527 (2009)
Y. Liang, H. Dai, L. Ma, P. Wang, H. Cheng, Int. J. Hydrogen Energy 35(7), 3023 (2010)
Y. Shang, R. Chen, Energy. Fuel 20(5), 2142 (2006)
V.G. Minkina, S.I. Shabunya, V.I. Kalinin, V.V. Martynenko, A.L. Smirnova, Int. J. Hydrogen Energy 33(20), 5629 (2008)
Y. Shang, R. Chen, Energy. Fuel. 20(5), 2142 (2006)
A.K. Figen, S. Pişkin, Adv. Powder Technol. 21, 513 (2010)
A. Kanturk, M. Sari, S. Piskin, Korean J. Chem. Eng. 25, 1331 (2008)
E.D. Garret, Borates, Handbook of Deposits, Processing, Properties and Use, vol. 401 (Elsevier, New York, 1998)
F. Habashi, Handbook of Extractive Metallurgy (Wiley, Germany, 1997)
J. Snover, Y. Wu, Recycle of Discharged Sodium Borate Fuel, U.S. Patent 6,706,909 B1, 2004
A. Kanturk, M Sari, H.E. Figen, S. Piskin, 2nd International Hydrogen Energy Congress and Exhibition, Istanbul, Turkey, 2007
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Figen, A.K., Öztürk, A. & Pişkin, S. Process for the conversion of highly caustic spent sodium borohydride fuel. Res Chem Intermed 38, 2343–2354 (2012). https://doi.org/10.1007/s11164-012-0550-9
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DOI: https://doi.org/10.1007/s11164-012-0550-9