FR2471655A1 - Reactif et procede pour la decontamination de systemes radioactifs - Google Patents
Reactif et procede pour la decontamination de systemes radioactifs Download PDFInfo
- Publication number
- FR2471655A1 FR2471655A1 FR8026010A FR8026010A FR2471655A1 FR 2471655 A1 FR2471655 A1 FR 2471655A1 FR 8026010 A FR8026010 A FR 8026010A FR 8026010 A FR8026010 A FR 8026010A FR 2471655 A1 FR2471655 A1 FR 2471655A1
- Authority
- FR
- France
- Prior art keywords
- acid
- decontamination
- solution
- reagent
- formic acid
- 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.)
- Granted
Links
- 238000005202 decontamination Methods 0.000 title claims abstract description 40
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 38
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 10
- 230000002285 radioactive effect Effects 0.000 title description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 100
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 99
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 84
- 235000019253 formic acid Nutrition 0.000 claims abstract description 49
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 42
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 16
- 150000007524 organic acids Chemical class 0.000 claims abstract description 11
- 235000005985 organic acids Nutrition 0.000 claims abstract description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 47
- 239000000243 solution Substances 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 26
- 238000000354 decomposition reaction Methods 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 18
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 12
- 229910052796 boron Inorganic materials 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000005865 ionizing radiation Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 38
- 229910052742 iron Inorganic materials 0.000 abstract description 17
- 238000003608 radiolysis reaction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 229960004106 citric acid Drugs 0.000 description 25
- 239000003507 refrigerant Substances 0.000 description 11
- 238000007792 addition Methods 0.000 description 10
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 229910000975 Carbon steel Inorganic materials 0.000 description 6
- 239000010962 carbon steel Substances 0.000 description 6
- 229940093915 gynecological organic acid Drugs 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 4
- 239000003729 cation exchange resin Substances 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 229910052805 deuterium Inorganic materials 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- JVXHQHGWBAHSSF-UHFFFAOYSA-L 2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydron;iron(2+) Chemical compound [H+].[H+].[Fe+2].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JVXHQHGWBAHSSF-UHFFFAOYSA-L 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229940023913 cation exchange resins Drugs 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 borate anions Chemical class 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 229960002303 citric acid monohydrate Drugs 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 229940062993 ferrous oxalate Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- OWZIYWAUNZMLRT-UHFFFAOYSA-L iron(2+);oxalate Chemical compound [Fe+2].[O-]C(=O)C([O-])=O OWZIYWAUNZMLRT-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000000155 isotopic effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000003891 oxalate salts Chemical group 0.000 description 1
- GEVPUGOOGXGPIO-UHFFFAOYSA-N oxalic acid;dihydrate Chemical compound O.O.OC(=O)C(O)=O GEVPUGOOGXGPIO-UHFFFAOYSA-N 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 235000021178 picnic Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- G21F9/28—Treating solids
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10182379A | 1979-12-10 | 1979-12-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2471655A1 true FR2471655A1 (fr) | 1981-06-19 |
| FR2471655B1 FR2471655B1 (cg-RX-API-DMAC7.html) | 1985-03-29 |
Family
ID=22286592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8026010A Granted FR2471655A1 (fr) | 1979-12-10 | 1980-12-08 | Reactif et procede pour la decontamination de systemes radioactifs |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS56145400A (cg-RX-API-DMAC7.html) |
| KR (1) | KR830002521B1 (cg-RX-API-DMAC7.html) |
| CA (1) | CA1136398A (cg-RX-API-DMAC7.html) |
| DE (1) | DE3046563A1 (cg-RX-API-DMAC7.html) |
| ES (1) | ES8301553A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2471655A1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB2064852B (cg-RX-API-DMAC7.html) |
| IT (1) | IT8068933A0 (cg-RX-API-DMAC7.html) |
| RO (1) | RO80877A (cg-RX-API-DMAC7.html) |
| SE (1) | SE8008227L (cg-RX-API-DMAC7.html) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0071336B1 (en) * | 1981-06-17 | 1986-03-26 | Central Electricity Generating Board | Process for the chemical dissolution of oxide deposits |
| CH653466A5 (de) * | 1981-09-01 | 1985-12-31 | Industrieorientierte Forsch | Verfahren zur dekontamination von stahloberflaechen und entsorgung der radioaktiven stoffe. |
| US4963293A (en) * | 1983-06-07 | 1990-10-16 | Westinghouse Electric Corp. | Flow control method for decontaminating radioactively contaminated nuclear steam generator |
| JPS63253300A (ja) * | 1987-04-10 | 1988-10-20 | 三菱重工業株式会社 | 化学除染剤 |
| DE4131766A1 (de) * | 1991-09-24 | 1993-03-25 | Siemens Ag | Verfahren zur dekontamination des primaerkreises eines kernkraftwerkes |
| FR2691282B1 (fr) * | 1992-05-12 | 1994-10-21 | Framatome Sa | Procédé d'élimination de dépôts de corrosion dans la partie secondaire d'un générateur de vapeur d'un réacteur nucléaire. |
| DE59400707D1 (de) * | 1993-02-01 | 1996-10-31 | Deco Hanulik Ag | Verfahren zur Dekontamination von radioaktiven Metalloberflächen |
| DE4317338A1 (de) * | 1993-05-25 | 1994-12-01 | Dyckerhoff & Widmann Ag | Verfahren zum Dekontaminieren von mit Schadstoffen verunreinigten Böden, Schlämmen, Aschen, Sedimenten oder dergleichen |
| UA46747C2 (uk) * | 1996-06-17 | 2002-06-17 | Дзе Бебкок Енд Уілкокс Компані, Корпорація Штату Делавер, Сша | Розчин для очищення об'єктів від уранових сполук і спосіб очистки |
| TW387936B (en) * | 1997-08-12 | 2000-04-21 | Kanto Kagaku | Washing solution |
| RU2147780C1 (ru) * | 1998-08-12 | 2000-04-20 | ЗАО НПО Энергоатоминвент | Способ дезактивации поверхностно-загрязненных сталей |
| KR100724710B1 (ko) * | 2002-11-21 | 2007-06-04 | 가부시끼가이샤 도시바 | 방사화 부품의 화학적 오염제거 시스템 및 방법 |
| CN103155047B (zh) * | 2010-07-21 | 2016-08-03 | 加拿大原子能有限公司 | 反应堆去污方法和试剂 |
| WO2017076431A1 (en) * | 2015-11-03 | 2017-05-11 | Areva Gmbh | Method of decontaminating metal surfaces in a heavy water cooled and moderated nuclear reactor |
| ES2694641T3 (es) * | 2016-05-24 | 2018-12-26 | Technochim Sa | Productos para el tratamiento preventivo del acero inoxidable y métodos relacionados |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB926401A (en) * | 1960-08-10 | 1963-05-15 | Dow Chemical Co | Scale removal |
| CA1062590A (en) * | 1976-01-22 | 1979-09-18 | Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited | Reactor decontamination process |
| GB2044982A (en) * | 1978-11-03 | 1980-10-22 | Kraftwerk Union Ag | Chemical decontamination of reactor parts |
-
1980
- 1980-11-17 CA CA000365693A patent/CA1136398A/en not_active Expired
- 1980-11-24 GB GB8037653A patent/GB2064852B/en not_active Expired
- 1980-11-25 SE SE8008227A patent/SE8008227L/xx unknown
- 1980-12-05 RO RO80102784A patent/RO80877A/ro unknown
- 1980-12-05 KR KR1019800004638A patent/KR830002521B1/ko not_active Expired
- 1980-12-08 FR FR8026010A patent/FR2471655A1/fr active Granted
- 1980-12-08 JP JP17306980A patent/JPS56145400A/ja active Pending
- 1980-12-09 ES ES497546A patent/ES8301553A1/es not_active Expired
- 1980-12-10 DE DE19803046563 patent/DE3046563A1/de not_active Withdrawn
- 1980-12-18 IT IT8068933A patent/IT8068933A0/it unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB926401A (en) * | 1960-08-10 | 1963-05-15 | Dow Chemical Co | Scale removal |
| CA1062590A (en) * | 1976-01-22 | 1979-09-18 | Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited | Reactor decontamination process |
| GB2044982A (en) * | 1978-11-03 | 1980-10-22 | Kraftwerk Union Ag | Chemical decontamination of reactor parts |
Also Published As
| Publication number | Publication date |
|---|---|
| ES497546A0 (es) | 1982-12-01 |
| CA1136398A (en) | 1982-11-30 |
| IT8068933A0 (it) | 1980-12-18 |
| KR830004640A (ko) | 1983-07-16 |
| SE8008227L (sv) | 1981-06-11 |
| FR2471655B1 (cg-RX-API-DMAC7.html) | 1985-03-29 |
| GB2064852B (en) | 1984-03-14 |
| KR830002521B1 (ko) | 1983-11-07 |
| ES8301553A1 (es) | 1982-12-01 |
| RO80877A (ro) | 1983-07-07 |
| JPS56145400A (en) | 1981-11-12 |
| RO80877B (ro) | 1983-06-30 |
| DE3046563A1 (de) | 1981-09-03 |
| GB2064852A (en) | 1981-06-17 |
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