JP4124133B2 - オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 - Google Patents
オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 Download PDFInfo
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- JP4124133B2 JP4124133B2 JP2004031834A JP2004031834A JP4124133B2 JP 4124133 B2 JP4124133 B2 JP 4124133B2 JP 2004031834 A JP2004031834 A JP 2004031834A JP 2004031834 A JP2004031834 A JP 2004031834A JP 4124133 B2 JP4124133 B2 JP 4124133B2
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims description 15
- 229910017604 nitric acid Inorganic materials 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 13
- -1 oxapentanediamine compound Chemical class 0.000 title description 11
- VRZYWIAVUGQHKB-UHFFFAOYSA-N 2-[2-(dioctylamino)-2-oxoethoxy]-n,n-dioctylacetamide Chemical compound CCCCCCCCN(CCCCCCCC)C(=O)COCC(=O)N(CCCCCCCC)CCCCCCCC VRZYWIAVUGQHKB-UHFFFAOYSA-N 0.000 claims description 9
- 239000002915 spent fuel radioactive waste Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- 239000010808 liquid waste Substances 0.000 claims description 4
- 230000002285 radioactive effect Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims 1
- 229910052768 actinide Inorganic materials 0.000 description 12
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 11
- 229940094933 n-dodecane Drugs 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 238000000605 extraction Methods 0.000 description 10
- 150000001255 actinides Chemical class 0.000 description 6
- 229910052747 lanthanoid Inorganic materials 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 150000002602 lanthanoids Chemical class 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 239000012454 non-polar solvent Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- SGZRFMMIONYDQU-UHFFFAOYSA-N n,n-bis(2-methylpropyl)-2-[octyl(phenyl)phosphoryl]acetamide Chemical compound CCCCCCCCP(=O)(CC(=O)N(CC(C)C)CC(C)C)C1=CC=CC=C1 SGZRFMMIONYDQU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Inorganic Compounds Of Heavy Metals (AREA)
Description
W. Liansheng, M. Casarci, G.M. Gasparini, Solv. Extr. Ion Exch., 8, 49(1990)
(2)これまでに提案されたプロセスに利用される抽出剤はn−ドデカンのような無極性溶媒中の溶解性がやや低く、不安定なものが多い。
(1)Np(IV),Pu(III),Pu(IV),Am(III),Cm(III)及びLn(III)のような3,4価のアクチノイド(ランタノイド)イオンに高い分配比を示す抽出剤を開発した。
(3)第三相の生成をできるだけ抑制できる抽出剤、及び条件を見出した。即ち、本発 明の新規三座配位子のDGA化合物である、TODGA(N
,N,N’,N’−テトラオクチル−1,3−オキサペンタンジアミド),TDDGA(N,N,N’,N’−テトラデシル−1,3−オキサペンタンジアミド)及びTDdDGA(N,N,N’,N’−テトラドデシル−1,3−オキサペンタンジアミド)を開発した。
1)本発明の上記抽出剤化合物は長い炭化水素鎖を有し、無極性溶媒のn−ドデカンと非常に良く混ざり合い、1Mのような高い濃度のDGA/n−ドデカン抽出溶媒の調製が可能である。
TODGAを用いて、Np(IV),Pu(III),Pu(IV),Am(III),及びCm(III)の抽出分配比を測定した。水相に各アクチノイドイオンを含む硝酸溶液を、有機相に0.1M TODGA/n−ドデカン溶媒を用いて、得られた分配比を硝酸濃度に対してプロットした。硝酸濃度が増加すると各イオンの分配比は増加し、1M(=mol/dm3)以上の硝酸溶液から最低30の分配比が得られ、この数字は少なくとも6Mまで硝酸濃度増加とともに増加した。これは1M硝酸の条件でバッチ抽出において、97%の回収が可能であることを示唆する。
TODGAを用いて、La(III),Ce(III),Pr(III),Nd(III),Sm(III),Eu(III),及びGd(III)の抽出分配比を測定した。水相に各ランタノイドイオンを含む硝酸溶液を、有機相に0.1M TODGA/n−ドデカン溶媒を用いて、得られた分配比を硝酸濃度に対してプロットした。それら抽出挙動はアクチノイドイオンとほぼ同様な傾向が見られた。最も低い分配比はLa(III)の1M硝酸濃度条件で4であり、ミキサセトラで多段抽出すれば十分抽出可能であることを示す。
Claims (1)
- 使用済み核燃料溶解液又は高レベル放射性廃液から選ばれる1M〜6Mの硝酸水溶液から、TODGA(N,N,N’,N’−テトラオクチル−1,3−オキサペンタンジアミド),TDDGA(N,N,N’,N’−テトラデシル−1,3−オキサペンタンジアミド)、又はTDdDGA(N,N,N’,N’−テトラドデシル−1,3−オキサペンタンジアミド)により、無極性有機溶媒相へNp(IV),Pu(III),Pu(IV)、Am(III),及びCm(III)を一括抽出する方法。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004031834A JP4124133B2 (ja) | 2004-02-09 | 2004-02-09 | オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004031834A JP4124133B2 (ja) | 2004-02-09 | 2004-02-09 | オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005221461A JP2005221461A (ja) | 2005-08-18 |
| JP4124133B2 true JP4124133B2 (ja) | 2008-07-23 |
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| JP2004031834A Expired - Fee Related JP4124133B2 (ja) | 2004-02-09 | 2004-02-09 | オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 |
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| Country | Link |
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| JP (1) | JP4124133B2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7793663B2 (en) | 2003-01-17 | 2010-09-14 | 3M Innovative Properties Company | Method of forming an earplug by laser ablation and an earplug formed thereby |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4604226B2 (ja) * | 2005-11-16 | 2011-01-05 | 独立行政法人 日本原子力研究開発機構 | 硝酸溶液中のネプツニウムをdga(ジグリコールアミド)化合物により定量的に抽出・逆抽出する方法 |
| JP5035788B2 (ja) * | 2006-06-06 | 2012-09-26 | 独立行政法人日本原子力研究開発機構 | 希土類金属の抽出剤と抽出方法 |
| CN114471474B (zh) * | 2022-02-13 | 2023-09-08 | 兰州大学 | 可在高酸环境选择性吸附Am(III)的树脂材料及制备方法 |
| CN116555568A (zh) * | 2023-05-17 | 2023-08-08 | 四川长晏科技有限公司 | 一种在强酸性体系中萃取金属离子的方法 |
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- 2004-02-09 JP JP2004031834A patent/JP4124133B2/ja not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7793663B2 (en) | 2003-01-17 | 2010-09-14 | 3M Innovative Properties Company | Method of forming an earplug by laser ablation and an earplug formed thereby |
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| JP2005221461A (ja) | 2005-08-18 |
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