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JAEA Reports

Research and development on partitioning in JAERI; Review of the research activities until the development of 4-group partitioning process

Morita, Yasuji; Kubota, Masumitsu*

JAERI-Review 2005-041, 35 Pages, 2005/09

JAERI-Review-2005-041.pdf:2.24MB

Research and development on Partitioning in JAERI are reviewed in the present report from the beginning to the development of the 4-Group Partitioning Process and its test with real high-level liquid waste (HLLW). In the 3-Group Partitioning Process established in around 1980, elements in HLLW are separated into 3 groups of transuranium element group, Sr-Cs group and the other element group. The 4-Group Partitioning Process subsequently developed contains the separation of Tc-platinum group metals additionally. The process was tested to demonstrate its performance with real concentrated HLLW. Until then, various separation methods for various elements were studied and selection and optimization of the separation methods were carried out to establish the process. Review of the experience, findings and results is very important and valuable for future study on partitioning. The present report is prepared from this point of view.

JAEA Reports

Studies on actinide separation process from high-level liquid waste (Joint research)

Morita, Yasuji; Tachimori, Shoichi; Koma, Yoshikazu*; Aoshima, Atsushi*

JAERI-Research 2002-017, 20 Pages, 2002/08

JAERI-Research-2002-017.pdf:1.32MB

The present report describes the results of a joint study between Japan Nuclear Cycle Development Institute (JNC) and Japan Atomic Energy Research Institute (JAERI) on actinide separation process from high-level liquid waste. The purpose of the joint study is to point out common subjects in process development by an overall evaluation of each actinide separation process: TRUEX/SETFICS Process studied in JNC and DIDPA Extraction Process studied in JAERI. The result of the evaluation showed that both processes have common subjects to be studied in sub-processes such as treatment step for spent solvent or DTPA waste solution and solvent washing step for recycling, although the main process is different from each other. It is necessary to develop the sub-processes and to test the whole process including the sub-processes. Two essential requirements: the cost reduction and the minimization of secondary wastes, are very important in future research and development for more rational and effective actinide separation process.

Journal Articles

Back-extraction of tri- and tetravalent actinides from diisodecylphosphoric acid (DIDPA) with hydrazine carbonate

Watanabe, Masayuki; Tatsugae, Ryozo*; Morita, Yasuji; Kubota, Masumitsu*

Journal of Radioanalytical and Nuclear Chemistry, 252(1), p.53 - 57, 2002/04

 Times Cited Count:5 Percentile:35.97(Chemistry, Analytical)

no abstracts in English

Journal Articles

Back-extraction of uranium(VI) from organophosphoric acid with hydrazine carbonate

Watanabe, Masayuki; Tatsugae, Ryozo*; Shirahashi, Koichi; Morita, Yasuji; Kubota, Masumitsu*

Journal of Radioanalytical and Nuclear Chemistry, 250(2), p.377 - 379, 2001/11

 Times Cited Count:5 Percentile:40.34(Chemistry, Analytical)

no abstracts in English

JAEA Reports

Cold and semi-hot tests of 4-group partitioning process at NUCEF

Morita, Yasuji; Yamaguchi, Isoo; Fujiwara, Takeshi; Mizoguchi, Kenichi*; Kubota, Masumitsu*

JAERI-Research 2000-024, 55 Pages, 2000/06

JAERI-Research-2000-024.pdf:2.24MB

no abstracts in English

JAEA Reports

Development of partitioning process; Back-extraction of actinoid and lanthanoid with hydrazine carbonate

Watanabe, Masayuki; Tatsugae, Ryozo*; *; Morita, Yasuji; Kubota, Masumitsu

JAERI-Research 99-034, 55 Pages, 1999/05

JAERI-Research-99-034.pdf:1.7MB

no abstracts in English

JAEA Reports

Development of partitioning process; Extraction behavior and third-phase formation of lanthanoid and iron with DIDPA

Watanabe, Masayuki; Morita, Yasuji; Kubota, Masumitsu

JAERI-Research 99-001, 18 Pages, 1999/01

JAERI-Research-99-001.pdf:0.78MB

no abstracts in English

JAEA Reports

Development of partitioning process: Purification of DIDPA

Watanabe, Masayuki; Morita, Yasuji; Kubota, Masumitsu

JAERI-Research 98-025, 14 Pages, 1998/04

JAERI-Research-98-025.pdf:0.72MB

no abstracts in English

Journal Articles

Actinide partitioning from HLW in a continuous DIDPA extraction process by means of centrifugal extractors

Morita, Yasuji; J.-P.Glatz*; Kubota, Masumitsu; L.Koch*; G.Pagliosa*; K.Roemer*; A.Nicholl*

Solvent Extr. Ion Exch., 14(3), p.385 - 400, 1996/00

 Times Cited Count:81 Percentile:92.55(Chemistry, Multidisciplinary)

no abstracts in English

JAEA Reports

Development of partitioning method: Behavior of zirconium and molybdenum in back-extraction with oxalic acid solution from DIDPA solvent

Shirahashi, Koichi; Morita, Yasuji; Kubota, Masumitsu

JAERI-Research 95-012, 34 Pages, 1995/03

JAERI-Research-95-012.pdf:0.84MB

no abstracts in English

JAEA Reports

Development of partitioning method; Back-extraction of uranium from DIDPA solvent

*; Shirahashi, Koichi; Kubota, Masumitsu

JAERI-Research 95-011, 72 Pages, 1995/03

JAERI-Research-95-011.pdf:1.77MB

no abstracts in English

Journal Articles

Diisodecylphosphoric acid, DIDPA, as an extractant for transuranium elements

Morita, Yasuji; ; Shirahashi, Koichi; ; *; Kubota, Masumitsu

Global 1995,Int. Conf. on Evaluation of Emerging Nuclear Fuel Cycle Systems, 2, p.1163 - 1170, 1995/00

no abstracts in English

Journal Articles

Extraction behavior of yttrium with diisodecylphosphoric acid from nitric acid solution

Sato, Tadashi

Journal of Radioanalytical and Nuclear Chemistry, 158(2), p.391 - 399, 1992/00

 Times Cited Count:5 Percentile:49.13(Chemistry, Analytical)

no abstracts in English

Journal Articles

Separation of transuranic elements from high-level waste by extraction with diisodecyl phosphoric acid

Morita, Yasuji; *; Kubota, Masumitsu

Proc. of the 3rd Int. Conf. on Nuclear Fuel Reprocessing and Waste Management,Vol. 2, p.348 - 353, 1991/00

no abstracts in English

JAEA Reports

Development of partitioning method; Continuous extraction of neptunium with DIDPA and continuous stripping with oxalic acid

*; Morita, Yasuji; Kubota, Masumitsu

JAERI-M 90-023, 33 Pages, 1990/02

JAERI-M-90-023.pdf:0.86MB

no abstracts in English

Journal Articles

Radiolysis of diisodecyl phosphoric acid and its effect on the extraction of neptunium

Morita, Yasuji; Kubota, Masumitsu; Y.J.Shin*

Solvent Extr. Ion Exch., 8(4-5), p.529 - 555, 1990/00

 Times Cited Count:7 Percentile:50.87(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Extraction of pentavalent neptunium with di-isodecyl phosphoric acid

;

Journal of Nuclear Science and Technology, 24(3), p.227 - 232, 1987/03

 Times Cited Count:29 Percentile:91.52(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Behavior of neptunium in chemical process of partitioning long-lived radionuclides from high-level waste

;

Journal of Nuclear Science and Technology, 22(8), p.658 - 664, 1985/00

 Times Cited Count:13 Percentile:82.41(Nuclear Science & Technology)

no abstracts in English

23 (Records 1-20 displayed on this page)