KR830004640A - Decontamination composition suitable for radioactive device - Google Patents
Decontamination composition suitable for radioactive device Download PDFInfo
- Publication number
- KR830004640A KR830004640A KR1019800004638A KR800004638A KR830004640A KR 830004640 A KR830004640 A KR 830004640A KR 1019800004638 A KR1019800004638 A KR 1019800004638A KR 800004638 A KR800004638 A KR 800004638A KR 830004640 A KR830004640 A KR 830004640A
- Authority
- KR
- South Korea
- Prior art keywords
- decontaminant
- solution
- decontamination
- acid
- formic acid
- Prior art date
Links
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)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 포름산나트륨이나 포름산이 존재할 때 PH4.5인 CAN-DECON 용액에서 방사선량에 따른 EDTA의 방사능 분해를 나타낸 그래프, 제2도는 포름산나트륨이나 포름산을 함유하는 PH4.5의 CAN-DECON용액에서 방사선량에 따른 시트르산의 소비와 옥살산의 생성을 나타내는 그래프, 제3도는 포름산나트륨이 존재할때 EDTA의 방사능분해, 포름산염이 부재할때 EDTA와 시트르산의 방사능분해 및 제2도에 도시한 바와같이 포름산염이 존재할때 옥살산의 방사능 분해생성물을 나타내는 그래프, 제4도는 제3도와 유사한 것으로 포름산이 존재할 때 EDTA와 시트르산의 분해 및 옥살산의 생성을 나타내는 그래프, 제5도는 두종류 농도의 포름산과 함께 용해된 철이 존재할 때와 포름산이 없이 용해된 철만 존재할때 EDTA의 방사능 분해를 나타내는 그래프, 제6도는 붕소와 포름산염이 존재할 때 EDTA, 시트르산 및 옥살산의 소비를 나타내는 그래프, 제7도는 옥살산 제2철, 황산 제1철 및 포름산나트륨이 존재할 때 방사선량의 증가에 따른 EDTA와 시트르산의 분해를 나타내는 그래프이다.1 is a graph showing the radioactive decomposition of EDTA in the CAN-DECON solution of PH4.5 in the presence of sodium formate or formic acid, and FIG. 2 is a CAN-DECON solution of PH4.5 containing sodium formate or formic acid. Graph showing the consumption of citric acid and the production of oxalic acid according to the radiation dose, Figure 3 shows the radiolysis of EDTA in the presence of sodium formate, the radiolysis of EDTA and citric acid in the absence of formate, and Figure 4 shows the radioactive decomposition products of oxalic acid in the presence of acid salts, Figure 4 is similar to Figure 3, showing the decomposition of EDTA and citric acid and the formation of oxalic acid in the presence of formic acid, and Figure 5 is dissolved with two concentrations of formic acid. Graph showing radioactive decomposition of EDTA in the presence of iron and in the presence of dissolved iron without formic acid, Figure 6 shows boron and formate Graph showing the consumption of EDTA, citric acid and oxalic acid when present, FIG. 7 is a graph showing the decomposition of EDTA and citric acid with increasing radiation dose in the presence of ferric oxalate, ferrous sulfate and sodium formate.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10182379A | 1979-12-10 | 1979-12-10 | |
US101823 | 1979-12-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR830004640A true KR830004640A (en) | 1983-07-16 |
KR830002521B1 KR830002521B1 (en) | 1983-11-07 |
Family
ID=22286592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019800004638A KR830002521B1 (en) | 1979-12-10 | 1980-12-05 | Decontamination composition suitable for radioactive device |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS56145400A (en) |
KR (1) | KR830002521B1 (en) |
CA (1) | CA1136398A (en) |
DE (1) | DE3046563A1 (en) |
ES (1) | ES8301553A1 (en) |
FR (1) | FR2471655A1 (en) |
GB (1) | GB2064852B (en) |
IT (1) | IT8068933A0 (en) |
RO (1) | RO80877A (en) |
SE (1) | SE8008227L (en) |
Families Citing this family (13)
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 (en) * | 1981-09-01 | 1985-12-31 | Industrieorientierte Forsch | METHOD FOR DECONTAMINATING STEEL SURFACES AND DISPOSAL OF RADIOACTIVE SUBSTANCES. |
US4963293A (en) * | 1983-06-07 | 1990-10-16 | Westinghouse Electric Corp. | Flow control method for decontaminating radioactively contaminated nuclear steam generator |
JPS63253300A (en) * | 1987-04-10 | 1988-10-20 | 三菱重工業株式会社 | Chemical decontaminating agent |
DE4131766A1 (en) * | 1991-09-24 | 1993-03-25 | Siemens Ag | Decontamination of nuclear power station prim. cycle to remove metal oxide - by adding chelating agent to prim. coolant to dissolve contaminated oxide |
FR2691282B1 (en) * | 1992-05-12 | 1994-10-21 | Framatome Sa | Method for removing corrosion deposits in the secondary part of a steam generator of a nuclear reactor. |
DE59400707D1 (en) * | 1993-02-01 | 1996-10-31 | Deco Hanulik Ag | Process for decontamination of radioactive metal surfaces |
DE4317338A1 (en) * | 1993-05-25 | 1994-12-01 | Dyckerhoff & Widmann Ag | Process for decontaminating polluted soils, sludges, ashes, sediments or the like |
TW387936B (en) * | 1997-08-12 | 2000-04-21 | Kanto Kagaku | Washing solution |
KR100724710B1 (en) * | 2002-11-21 | 2007-06-04 | 가부시끼가이샤 도시바 | System and method for chemical decontamination of radioactive material |
CN103155047B (en) * | 2010-07-21 | 2016-08-03 | 加拿大原子能有限公司 | reactor decontamination method and reagent |
CA3003488C (en) * | 2015-11-03 | 2023-03-14 | Framatome Gmbh | Method of decontaminating metal surfaces in a heavy water cooled and moderated nuclear reactor |
DK3249076T3 (en) | 2016-05-24 | 2018-11-26 | Technochim Sa | Stainless steel preventive treatment products and related methods |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003898A (en) * | 1960-08-10 | 1961-10-10 | 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 |
DE2847780C2 (en) * | 1978-11-03 | 1984-08-30 | Kraftwerk Union AG, 4330 Mülheim | Process for the chemical decontamination of metallic components of nuclear reactor plants |
-
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/en unknown
- 1980-12-05 KR KR1019800004638A patent/KR830002521B1/en active
- 1980-12-05 RO RO80102784A patent/RO80877A/en unknown
- 1980-12-08 FR FR8026010A patent/FR2471655A1/en active Granted
- 1980-12-08 JP JP17306980A patent/JPS56145400A/en active Pending
- 1980-12-09 ES ES497546A patent/ES8301553A1/en not_active Expired
- 1980-12-10 DE DE19803046563 patent/DE3046563A1/en not_active Withdrawn
- 1980-12-18 IT IT8068933A patent/IT8068933A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT8068933A0 (en) | 1980-12-18 |
FR2471655B1 (en) | 1985-03-29 |
CA1136398A (en) | 1982-11-30 |
GB2064852B (en) | 1984-03-14 |
SE8008227L (en) | 1981-06-11 |
RO80877B (en) | 1983-06-30 |
ES497546A0 (en) | 1982-12-01 |
ES8301553A1 (en) | 1982-12-01 |
GB2064852A (en) | 1981-06-17 |
FR2471655A1 (en) | 1981-06-19 |
KR830002521B1 (en) | 1983-11-07 |
RO80877A (en) | 1983-07-07 |
DE3046563A1 (en) | 1981-09-03 |
JPS56145400A (en) | 1981-11-12 |
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