Abstract
An improved PUREX process in Tc separation is introduced in this paper. Experiments including we did and done by other investigators are cited in this paper to testify the feasibility of the process. The scheme of this process is as follows: First, to extract U, Pu and most Tc, Np into the organic phase, so the concentration of Tc in the high level liquid waste (HLLW) may be very low, which can alleviate the burden of Tc treatment in HLLW vitrification. Second, in the Pu and Np separation stage to reduce or complex Pu and Np using acetohydroxamic acid, this step separates Pu and Np from the organic phase. Next, to separate Tc from U, it can be realized easily by reducing Tc to lower valance using reductant such as hydrazine or quadrivalence U. By this technology, we may resolve the problems caused by Tc remained in the HLLW such as a long time surveillance of HLLW condensate or the risk of Tc transferring into the biosphere, and meanwhile the over-consumption of reductant in the U/Pu splitting stage can be avoided.
Similar content being viewed by others
References
Ebert K, Schmieder H (1989) In: Ebert K and Ammon R (ed) Safety of the nuclear fuel cycle, 3rd edn, Paris France
Kolarik, Z, Petrich G, Bleyl HJ (1990) ISEC’90 Conference, Kyoto, Japan, July 1990. Elsevier, 1992, part A 561–566
Hajimu Y, Omori E, Miura N, et al. (1990) ISEC’90 Conference, Kyoto, Japan, July 1990. Elsevier, 1992, part A: 657–662
Iwabuchi H, Sasaki K, Koyama K, et al. (1990) ISEC’90 Conference, Kyoto, Japan, July 1990. Elsevier, 1992, part A: 705–710
Bernard C, Miquel P, Vivla M (1991) RECOD’91, April 14–18, Sandai, Japan
Baron P, Boullis B, Germain M (1993) GOLBAL’93, Sep 12–17, vol 1. Seattle, Washington 63–70
Asada K, Bernard C, Bertault PH (1997) GOLBAL’97, Tokyo Japan, p 1460–1465
Ozawa M, Ishida M, Sano Y (2003) Radiochem 45(3):225–232
Matsumoto S, Uchiyama G, Ozawa M (2003) Radiochem 45(3):219–224
Mashkin AN, Korchenkin KK, Svetlakova NA (2002) Radiochem 44(1):35–41
Burrows C, Phillips C (2006) WM’06 Conference, Feb 26–Mar 2, Tucson, USA
Phillips C (1999) WM’99conference, Tucson, USA, p 1041–1045
Denniss IS, Phillips C (1990) ISEC’90, Kyoto, Japan, 16–21 July, Paper 04-02
Pruett DJ (1984) ORNL-8668
Ouyang YG, Li RX, Jiao HY (2003) J Nucl Radiochem 25(2):115–119
Tachimori S (1994) J Nucl Sci Tech 31(5):456–462
Lazarev LN, Zilberman BY, Romanovsk VN (1994) La-sub-95-81
Tkac P, Matteson B, Bruso J (2008) J Radioanal Nucl Chem 277(1):31–36
Matteson BS, Precek M, (2010) Mater Sci Eng doi:10.1088/1757-899X/9/1/012073
Taylor RJ, May I, Wallwork AL et al (1998) J Alloy Comp 273:534–537
Colston BJ, Choppin GR, Taylor RJ (2000) Radiochim Acta 88:329
Chung DY, Lee EH (2005) Bull Korean Chem Soc 26(11):1692–1694
Butler RJ, Sinkov S, Renshaw JC (2004) Atalante2004, October 24–26, Avignon, France
Matteson, B.S.: Paper of Doctor of Philosophy in Chemistry, Oregon State University (2010)
Yan TH, Zuo C, Zheng WF (2012) Atom Energy Sci Tech 46(9):1034–1040
Schroeder NC, Moses A, Marrero T (2000) LA-UR-01-6607
Tkac P, Paulenova A, Vandegrift GF (2009) J Radioanal Nucl Chem 280(2):339–342
Tkac P, Paulenova A, Vandegrift GF, Krebs JF (2010) J Chem Eng 55:3445–3450
Carrott MJ, Fox OD, Maher CJ, Mason C (2007) Solv Extr Ion Exch 25:723–745
Tkac P, Paulenova A (2008) Sep Sci Technol 43:2670–2683
Govindan P, Sukumar S (2008) Desalination 232:166–171
Sarsfield MJ, Sims HE, Taylor RJ (2011) Solv Extr Ion Exch 29:49–71
Vandegrift GF, Scott B (2004) WM’04 Conference, February 29–March 4, Tucson
Gelis AV, Vandegrift GF, Bakel A, Bowers DL (2009) Radiochim Acta 97(4–5):231–232
Vandegrift GF, Chamberlain DB, Conner C (1993) WM’93 Conference, 2: pp 1045–1050
Vandegrift GF, Regalbuto MC (1995) ICEM’95, 1: pp 457–467
Candido P, Vandegrift GF, Regalbuto MC, Bakel A (2004) WM’04 Conference, Tucson, AZ Feb–Mar 2004
Thompson MC, Norato MA, Kessinge GF (2002) WSRC-TR-2002-00444
Wilson PD, Garraway J (1993) J Chem Soc doi:10.1039/DT9930002601
Liu F, Wang H, Jia YF, Wei Y (2012) ANUP2012 Conference, Beijing, China, paper 31
Garraway J, Wilson PD (1984) J Less Common Met 97:191–203
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, F., Sun, Yr., Wang, H. et al. An improved PUREX process in technetium separation by stepwise reduction. J Radioanal Nucl Chem 299, 1329–1333 (2014). https://doi.org/10.1007/s10967-013-2888-x
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10967-013-2888-x