学术探索
学术期刊
新闻热点
数据分析
智能评审

Recovery of neptunium from highly radioactive waste solutions of PUREX origin using CMPO

被引：41
作者：
Mathur, JN
Murali, MS
Krishna, MVB
Iyer, RH
Chitnis, RR
Wattal, PK
Bauri, AK
Banerji, A
机构：
[1] BHABHA ATOM RES CTR,PROC ENGN & SYST DEV DIV,BOMBAY 400085,MAHARASHTRA,INDIA
[2] BHABHA ATOM RES CTR,DIV BIOORGAN,BOMBAY 400085,MAHARASHTRA,INDIA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS | 1996年 / 213卷 / 06期
关键词：
D O I：
10.1007/BF02162221
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The partitioning and recovery of Np-237 from three types of simulated high level waste solutions originating from PUREX processing of spent nuclear fuels such as sulfate bearing high level waste (SB-HLW), HLW from a pressurised heavy water reactor (PHWR-HLW) and from a fast breeder reactor (FBR-HLW) have been carried out using a mixture of 0.2M CMPO and 1.2M TBP in dodecane. Quantitative extraction of neptunium was possible by either oxidizing it to the hexavalent state keeping K2Cr2O7 at 0.01M concentration or by reducing it to tetravalent state keeping Fe2+ at 0.02M concentration. Stripping of neptunium was carried out using different reagents, such as dilute nitric acid, oxalic acid and sodium carbonate. Almost quantitative recovery of neptunium has been achieved during these studies.
引用
收藏
页码：419 / 429
页数：11
相关论文
共 12 条
[1]   EXTRACTION AND EXTRACTION CHROMATOGRAPHIC-SEPARATION OF MINOR ACTINIDES FROM SULFATE BEARING HIGH-LEVEL WASTE SOLUTIONS USING CMPO [J].
GOPALAKRISHNAN, V ;
DHAMI, PS ;
RAMANUJAM, A ;
KRISHNA, MVB ;
MURALI, MS ;
MATHUR, JN ;
IYER, RH ;
BAURI, AK ;
BANERJI, A .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 1995, 191 (02) :279-289
[2]   BEHAVIOR OF AMERICIUM IN THE STRIP STAGES OF THE TRUEX PROCESS [J].
HORWITZ, EP ;
CHIARIZIA, R ;
GATRONE, RC .
SOLVENT EXTRACTION AND ION EXCHANGE, 1988, 6 (01) :93-110
[3]   EXTRACTION OF NEPTUNIUM AND PLUTONIUM NITRATES WITH NORMAL-OCTYL(PHENYL)-N,N-DIISOBUTYL-CARBAMOYLMETHYLPHOSPHINE OXIDE [J].
KOLARIK, ZJ ;
HORWITZ, EP .
SOLVENT EXTRACTION AND ION EXCHANGE, 1988, 6 (02) :247-263
[4]  
Mathur J. N., 1993, Waste Management, V13, P317, DOI 10.1016/0956-053X(93)90060-A
[5]   EXTRACTION OF ACTINIDES AND FISSION-PRODUCTS BY OCTYL(PHENYL)-N,N-DIISOBUTYLCARBAMOYLMETHYLPHOSPHINE OXIDE FROM NITRIC-ACID MEDIA [J].
MATHUR, JN ;
MURALI, MS ;
NATARAJAN, PR ;
BADHEKA, LP ;
BANERJI, A .
TALANTA, 1992, 39 (05) :493-496
[6]   EXTRACTION CHROMATOGRAPHIC-SEPARATION OF MINOR ACTINIDES FROM PUREX HIGH-LEVEL WASTES USING CMPO [J].
MATHUR, JN ;
MURALI, MS ;
IYER, RH ;
RAMANUJAM, A ;
DHAMI, PS ;
GOPALAKRISHNAN, V ;
BADHEKA, LP ;
BANERJI, A .
NUCLEAR TECHNOLOGY, 1995, 109 (02) :216-225
[7]   THE SEPARATION OF NEPTUNIUM AND PLUTONIUM FROM NITRIC-ACID USING NORMAL-OCTYL(PHENYL)-N, N-DIISOBUTYLCARBAMOYLMETHYLPHOSPHINE OXIDE EXTRACTION AND SELECTIVE STRIPPING [J].
MINCHER, BJ .
SOLVENT EXTRACTION AND ION EXCHANGE, 1989, 7 (04) :645-654
[8]   EXTRACTION OF NEPTUNIUM WITH DI-ISODECYL PHOSPHORIC-ACID FROM NITRIC-ACID SOLUTION CONTAINING HYDROGEN-PEROXIDE [J].
MORITA, Y ;
KUBOTA, M .
SOLVENT EXTRACTION AND ION EXCHANGE, 1988, 6 (02) :233-246
[9]  
MORITA Y, 1995, P TECHN COMM SAF ENV
[10]  
NAGASAKI S, 1992, J NUCL SCI TECHNOL, V29, P671, DOI [10.1080/18811248.1992.9731580, 10.3327/jnst.29.671]
12