JP4372418B2 - 核施設で形成される固体を溶解する方法 - Google Patents
核施設で形成される固体を溶解する方法 Download PDFInfo
- Publication number
- JP4372418B2 JP4372418B2 JP2002548209A JP2002548209A JP4372418B2 JP 4372418 B2 JP4372418 B2 JP 4372418B2 JP 2002548209 A JP2002548209 A JP 2002548209A JP 2002548209 A JP2002548209 A JP 2002548209A JP 4372418 B2 JP4372418 B2 JP 4372418B2
- Authority
- JP
- Japan
- Prior art keywords
- solution
- acid
- zirconium
- carbonate
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
- G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
- G21F9/004—Decontamination of the surface of objects with chemical or electrochemical processes of metallic surfaces
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- High Energy & Nuclear Physics (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
−モリブデン酸ジルコニウム及びモリブデン酸ジルコニウムプルトニウム混合物、
−リン酸ジルコニウム及び結合されたゲル;
−ホスホモリブデン酸セシウム;
−リン酸プルトニウム;
−酸化モリブデン、ジルコニウム、及びプルトニウム
−リン酸鉄;及び
−硫酸バリウム。
P. FAUVET 及びG. P. LEGRY,"Corrosion aspects in reprocessing technology", CEA/CONF/11294 J. SCHMUCK,"Comportement a la corrosion du zirconium dans la chimie" M. A. NAGUIRE 及び T. L. YAU,"Corrosionelectrochemical properties of zirconium in mineral acids", NACE, 1986 Gmelin, Transurance Dl, 134頁 J. Dervin, Fauchere, J.,"Etude en solution et a l'etat solide des carbonates complexes de zirconium et d'hafnium", Revue de Chimie Minerale, vol. 11 (3), pp. 372, 1974 H. Nitsche, Silva, R. J.,"Investigation of the Carbonate Complexation of Pu (IV)", Radiochimica Acta, vol. 72, pp. 65-72, 1996 T. Yamaguchi, Sakamoto, Y.,"Effect of the Complexation on Solubility of Pu (IV) in Aqueous Carbonate System", Radiochimica Acta, vol. 66/67, pp.9-14,1994 E. N. Rizkalla, Choppin, G. R.,"Solubilities and Stabilities of Zirconium Species in Aqueous Solutions", BMI/ONWI/C-37, TI88 013295 O. J. Wick,"Plutonium handbook : a guide to the techynology", chap. 13, page 450, vol. 1, Gordon 及び Breach
−ナトリウム反対イオンの除去、ナトリウムは、ガラス化のために、排出液の現行の管理に容易に適合しない元素である;
−特に室温における、固体の崩壊の速度の増加、こうして屋外の装置をすすぐことが可能で、操作時間を最小限まで減らすようにする;
−すすぎ操作の回数の減少と、再処理される排出液の容量の減少;及び
−コロイド状でない、またはヒドロキシル化イオン形態で、リンス液のプルトニウムのメインテナンス。
−モリブデン酸ジルコニウム及びモリブデン酸ジルコニウムプルトニウム混合物、
−リン酸ジルコニウム及び結合されたゲル;
−ホスホモリブデン酸セシウム;
−リン酸プルトニウム;
−酸化モリブデン、ジルコニウム、及びプルトニウム
−リン酸鉄;及び
−硫酸バリウム
から選ばれる。
100℃で0.01MのMn2+の存在下で3Nの硝酸酸性度。
下記の実施例は、モリブデン酸ジルコニウムの場合の溶解度を測定する実験を行なうことにより、本発明の方法に用いられる溶解溶液の効率を示すものである。
最初のモリブデン酸ジルコニウム結晶は、3N硝酸中の5g/lのモルブデン(VI)と2.5g/lのジルコニウム(IV)溶液から80℃での穏やかな沈澱形成により得た。ろ過した沈澱は、1N硝酸中で洗浄し、40℃で乾燥し、デシケーター内で数日間保存した。結晶は、XDFと熱重量測定分析により特徴を調べた。化学式ZrMo2O7(OH)2・2H2Oのモリブデン酸ジルコニウム以外の化合物は検出されなかった。
同じ実験を行なったが、今度は、60℃で、硝酸/シュウ酸混合物で行なった。
Claims (10)
- 核施設の装置またはパイプ部材で形成される固体の溶解方法であって、前記固体を、0.3M以上の濃度の炭酸イオンの水溶液、及び、硝酸と、シュウ酸及び三塩基酸から選ばれるポリカルボン酸との混合物の溶液、の中から選ばれる水性溶解溶液に接触させる方法であって、
前記硝酸濃度が0.05乃至1Mであり、前記ポリカルボン酸濃度が、0.3M乃至1Mであり、
溶解される前記固体の組成物に含まれる化合物(類)が、
− モリブデン酸ジルコニウム及びモリブデン酸ジルコニウムプルトニウム混合物、
− リン酸ジルコニウム及び結合されたゲル;
− ホスホモリブデン酸セシウム;
− リン酸プルトニウム;
− 酸化モリブデン、ジルコニウム、及びプルトニウム
− リン酸鉄;及び
− 硫酸バリウム
から選ばれる、固体の溶解方法。 - 前記接触が、20乃至80℃の温度で、1乃至24時間行なわれる、請求項1記載の方法。
- 前記水性溶解溶液が、炭酸イオン溶液である、請求項1記載の方法。
- 前記水性溶解溶液の炭酸イオン濃度が、0.3Mから、そのイオンが由来する炭酸塩の水中溶解限度までである、請求項3記載の方法。
- 前記炭酸イオンが、ナトリウム及びカルシウムなどのアルカリ金属の炭酸塩、アルカリ土類金属の炭酸塩、及び炭酸アンモニウムから選ばれる塩に由来する請求項3または4記載の方法。
- 前記接触させる工程の後に、酸性溶液を水性溶解溶液に添加する請求項3乃至5のいずれか一項記載の方法。
- 溶解溶液の容量が、固体1g当たり、3ml乃至100mlである請求項3乃至6のいずれか一項記載の方法。
- 前記水性溶解溶液が、硝酸と、シュウ酸及び三塩基酸から選ばれるポリカルボン酸との混合物の溶液である、請求項1記載の方法。
- 前記ポリカルボン酸がクエン酸である請求項8記載の方法。
- 前記接触させる工程の後に、溶解溶液の酸を酸化により消失させる請求項8または9記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0015674A FR2817492B1 (fr) | 2000-12-04 | 2000-12-04 | Procede de dissolution des solides formes dans une installation nucleaire |
PCT/FR2001/003821 WO2002046497A2 (fr) | 2000-12-04 | 2001-12-04 | Procede de dissolution des solides formes dans une installation nucleaire |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004526128A JP2004526128A (ja) | 2004-08-26 |
JP4372418B2 true JP4372418B2 (ja) | 2009-11-25 |
Family
ID=8857196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002548209A Expired - Lifetime JP4372418B2 (ja) | 2000-12-04 | 2001-12-04 | 核施設で形成される固体を溶解する方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20040045935A1 (ja) |
EP (1) | EP1344228B1 (ja) |
JP (1) | JP4372418B2 (ja) |
CN (1) | CN1225744C (ja) |
DE (1) | DE60124584T2 (ja) |
FR (1) | FR2817492B1 (ja) |
WO (1) | WO2002046497A2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2951655B1 (fr) * | 2009-10-28 | 2011-12-23 | Commissariat Energie Atomique | Utilisation de certains elements chimiques pour inhiber la formation de precipites comprenant du molybdate de zirconium dans une solution aqueuse comprenant l'element molybdene et l'element zirconium |
DE102009047524A1 (de) * | 2009-12-04 | 2011-06-09 | Areva Np Gmbh | Verfahren zur Oberflächen-Dekontamination |
JP6522969B2 (ja) * | 2015-01-30 | 2019-05-29 | 三菱重工業株式会社 | 放射性物質の除去方法 |
US20180244535A1 (en) * | 2017-02-24 | 2018-08-30 | BWXT Isotope Technology Group, Inc. | Titanium-molybdate and method for making the same |
US11363709B2 (en) | 2017-02-24 | 2022-06-14 | BWXT Isotope Technology Group, Inc. | Irradiation targets for the production of radioisotopes |
CA3008612A1 (en) | 2018-06-18 | 2019-12-18 | Nova Chemicals Corporation | Removing and cleaning dehydrogenation catalysts |
CN111175238B (zh) * | 2020-01-09 | 2021-04-02 | 中国原子能科学研究院 | 一种含铀钚的硝酸溶液中微量草酸浓度的分析方法 |
CN114684843B (zh) * | 2020-12-25 | 2023-11-03 | 中核四0四有限公司 | 一种快速氧化草酸的方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL113562C (ja) * | 1959-02-24 | |||
US3080262A (en) * | 1959-04-07 | 1963-03-05 | Purex Corp | Process for removal of radioactive contaminants from surfaces |
US3288570A (en) * | 1963-08-16 | 1966-11-29 | Susquehanna Western Inc | Process for the selective recovery of uranium, zirconium and molybdenum |
US3243257A (en) * | 1963-09-11 | 1966-03-29 | Charles F Coleman | Recovery of uranium and zirconium from aqueous fluoride solutions |
US4302429A (en) * | 1976-11-08 | 1981-11-24 | E. I. Du Pont De Nemours And Company | Process for solution mining of uranium ores |
US4311341A (en) * | 1978-04-03 | 1982-01-19 | E. I. Du Pont De Nemours & Company | Restoration of uranium solution mining deposits |
GB2050039B (en) * | 1979-04-30 | 1983-01-19 | Atomic Energy Authority Uk | Dissolving plutanium containing nuclear fuels |
ATE18822T1 (de) * | 1981-06-17 | 1986-04-15 | Central Electr Generat Board | Verfahren zur chemischen zersetzung von oxydniederschlaegen. |
US4880559A (en) * | 1984-05-29 | 1989-11-14 | Westinghouse Electric Corp. | Ceric acid decontamination of nuclear reactors |
FR2601379A1 (fr) * | 1986-07-09 | 1988-01-15 | Commissariat Energie Atomique | Produit decapant pour pieces en acier et procede de decapage utilisant ce produit |
BE1002593A3 (nl) * | 1988-11-09 | 1991-04-02 | Lemmens Godfried | Werkwijze voor de dekontaminatie van radioaktief besmette materialen. |
JP2914506B2 (ja) | 1990-01-16 | 1999-07-05 | 株式会社神戸製鋼所 | コンクリート表面付着有害物質の除去方法 |
US5071582A (en) * | 1990-08-06 | 1991-12-10 | Basf Corporation | Coolant system cleaning solutions having silicate or siliconate-based corrosion inhibitors |
US5322644A (en) * | 1992-01-03 | 1994-06-21 | Bradtec-Us, Inc. | Process for decontamination of radioactive materials |
FR2746207B1 (fr) | 1996-03-14 | 1998-05-29 | Procede et installation pour le traitement d'un effluent aqueux issu de la decontamination ou du nettoyage chimique d'une centrale nucleaire |
-
2000
- 2000-12-04 FR FR0015674A patent/FR2817492B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-04 JP JP2002548209A patent/JP4372418B2/ja not_active Expired - Lifetime
- 2001-12-04 WO PCT/FR2001/003821 patent/WO2002046497A2/fr active IP Right Grant
- 2001-12-04 DE DE60124584T patent/DE60124584T2/de not_active Expired - Lifetime
- 2001-12-04 EP EP01999687A patent/EP1344228B1/fr not_active Expired - Lifetime
- 2001-12-04 CN CN01819943.7A patent/CN1225744C/zh not_active Expired - Lifetime
- 2001-12-04 US US10/433,168 patent/US20040045935A1/en not_active Abandoned
-
2007
- 2007-05-08 US US11/800,890 patent/US8221640B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2002046497A3 (fr) | 2002-08-01 |
FR2817492A1 (fr) | 2002-06-07 |
DE60124584D1 (de) | 2006-12-28 |
US8221640B2 (en) | 2012-07-17 |
EP1344228A2 (fr) | 2003-09-17 |
WO2002046497A2 (fr) | 2002-06-13 |
US20080006606A1 (en) | 2008-01-10 |
CN1225744C (zh) | 2005-11-02 |
FR2817492B1 (fr) | 2003-07-18 |
JP2004526128A (ja) | 2004-08-26 |
EP1344228B1 (fr) | 2006-11-15 |
US20040045935A1 (en) | 2004-03-11 |
DE60124584T2 (de) | 2007-09-27 |
CN1478283A (zh) | 2004-02-25 |
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