JP5162247B2 - 発電所の圧力容器から磁鉄鉱含有沈積物を取り除くための浄化方法 - Google Patents
発電所の圧力容器から磁鉄鉱含有沈積物を取り除くための浄化方法 Download PDFInfo
- Publication number
- JP5162247B2 JP5162247B2 JP2007540527A JP2007540527A JP5162247B2 JP 5162247 B2 JP5162247 B2 JP 5162247B2 JP 2007540527 A JP2007540527 A JP 2007540527A JP 2007540527 A JP2007540527 A JP 2007540527A JP 5162247 B2 JP5162247 B2 JP 5162247B2
- Authority
- JP
- Japan
- Prior art keywords
- purification
- purification method
- solution
- edta
- reduction
- 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 - Fee Related
Links
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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/683—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Metallurgy (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Removal Of Specific Substances (AREA)
- Cleaning In General (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Treatment Of Sludge (AREA)
Description
(反応1)
C6H12N4+6H2O→4NH3+6HCOH
(反応2)
Fe3O4+HCOH→3FeO+HCOOH
(反応3)
(C2H5)3N+HCOOH→[(C2H5)3NH]+HCOO-
(反応4)
2Fe3O4+HCOH→6FeO+CO2+H2O
Claims (16)
- 発電所の圧力容器から磁鉄鉱含有沈積物を取り除くための浄化方法において、該浄化方法が還元段階及び錯形成段階の2段階で実施され、該浄化方法の第一段階としての前記還元段階では、90℃乃至200℃の温度範囲内で還元剤を遊離させる先駆物質としてのヘキサメチレンテトラミンとモル比(ヘキサメチレンテトラミン:EDTA)が3.5:1乃至2:1のEDTAとを含有する第1浄化溶液Iが圧力容器に装入され、90℃乃至200℃の温度範囲の浄化温度に暖められた前記第1浄化溶液Iで前記磁鉄鉱含有沈積物が処理されて鉄IIIイオンが鉄IIイオンへと還元され、それに続く浄化方法の第二段階としての前記錯形成段階では、二価鉄イオンとの間で可溶性錯化合物を形成する錯形成剤を含有した第2浄化溶液IIが注入されることを特徴とする浄化方法。
- 前記第1浄化溶液Iが0.6乃至0.7mol/lのヘキサメチレンテトラミンと0.17乃至0.36mol/lのEDTAとを含有することを特徴とする請求項1に記載の浄化方法。
- 前記還元段階が弱酸性乃至中性の溶液内で実行されることを特徴とする請求項1又は2に記載の浄化方法。
- 前記還元段階のとき5乃至7のpH値が保たれることを特徴とする請求項1乃至3のいずれか1つに記載の浄化方法。
- 前記還元段階のとき5.0乃至7.0のpH値が保たれることを特徴とする請求項4に記載の浄化方法。
- 還元によって発生する鉄II量の最大10%に相当する量のEDTAが錯形成のために前記第1浄化溶液Iに添加されることを特徴とする請求項1乃至5のいずれか1つに記載の浄化方法。
- 前記還元段階が140℃乃至200℃の温度範囲内で実行されることを特徴とする請求項1に記載の浄化方法。
- EDTAを錯形成剤として含有する第2浄化溶液IIが使用されることを特徴とする請求項1乃至7のいずれか1つに記載の浄化方法。
- 専らEDTAを錯形成剤として含有する第2浄化溶液IIが使用されることを特徴とする請求項1乃至8のいずれか1つに記載の浄化方法。
- 前記錯形成段階が弱酸性乃至弱アルカリ性の溶液内で実行されることを特徴とする請求項1乃至9のいずれか1つに記載の浄化方法。
- 前記錯形成段階のとき6乃至10のpH値が保たれることを特徴とする請求項10に記載の浄化方法。
- 前記錯形成段階のとき6.5乃至9.3のpH値が保たれることを特徴とする請求項11に記載の浄化方法。
- 前記第2浄化溶液IIにトリエチルアミンが添加されることを特徴とする請求項10乃至12のいずれか1つに記載の浄化方法。
- 前記第2浄化溶液IIがEDTAで飽和され、最大0.5mol/lのトリエチルアミンを含有していることを特徴とする請求項13に記載の浄化方法。
- 還元剤先駆物質として、ホルムアルデヒドの先駆物質であるヘキサメチレンテトラミンのみを使用することを特徴とする請求項1〜14のいずれか1つに記載の浄化方法。
- 前記還元段階において又は前記還元段階に先立ってタンニン抽出物による処理を行なわないことを特徴とする請求項1〜15のいずれか1つに記載の浄化方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004054471A DE102004054471B3 (de) | 2004-11-11 | 2004-11-11 | Reinigungsverfahren zur Entfernung von Magnetit enthaltenden Ablagerungen aus einem Druckbehälter eines Kraftwerks |
DE102004054471.9 | 2004-11-11 | ||
PCT/EP2005/011409 WO2006053626A1 (de) | 2004-11-11 | 2005-10-25 | Reinigungsverfahren zur entfernung von magnetit enthaltenden ablagerungen aus einem druckbehälter eines kraftwerks |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008519678A JP2008519678A (ja) | 2008-06-12 |
JP5162247B2 true JP5162247B2 (ja) | 2013-03-13 |
Family
ID=35643892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007540527A Expired - Fee Related JP5162247B2 (ja) | 2004-11-11 | 2005-10-25 | 発電所の圧力容器から磁鉄鉱含有沈積物を取り除くための浄化方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US20070267046A1 (ja) |
EP (1) | EP1819845B1 (ja) |
JP (1) | JP5162247B2 (ja) |
KR (1) | KR100937563B1 (ja) |
CN (1) | CN100545316C (ja) |
AT (1) | ATE525496T1 (ja) |
CA (1) | CA2586556C (ja) |
DE (1) | DE102004054471B3 (ja) |
ES (1) | ES2373962T3 (ja) |
RU (1) | RU2360200C2 (ja) |
WO (1) | WO2006053626A1 (ja) |
ZA (1) | ZA200703492B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023247B3 (de) * | 2007-03-07 | 2008-08-07 | Areva Np Gmbh | Verfahren zur Entfernung von Magnetit und Kupfer enthaltenden Ablagerungen aus Behältern von Industrie- und Kraftwerksanlagen |
EP2356376B1 (en) * | 2008-12-03 | 2019-08-28 | Westinghouse Electric Company Llc | Chemical cleaning method and system with steam injection |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1719168A (en) * | 1927-01-11 | 1929-07-02 | Vanderbilt Co R T | Pickling of metals, etc. |
US3072502A (en) * | 1961-02-14 | 1963-01-08 | Pfizer & Co C | Process for removing copper-containing iron oxide scale from metal surfaces |
US3297580A (en) * | 1964-06-17 | 1967-01-10 | Edgar C Pitzer | Neutral metal cleaning compositions containing hydrazine and a polycarboxylamino acid |
US3627687A (en) * | 1968-02-09 | 1971-12-14 | Dow Chemical Co | Cleaning of ferrous metal surfaces |
AT290839B (de) * | 1969-04-03 | 1971-06-25 | Sued West Chemie Gmbh | Preßmasse aus härtbaren Kunstharzen mit einem die elektrische Leitfähigkeit hervorrufenden Gehalt an Metallpulvern |
US4130435A (en) * | 1975-09-18 | 1978-12-19 | E. I. Du Pont De Nemours And Company | Process for preparing a ball-point pen ink |
DD135406A1 (de) * | 1978-02-15 | 1979-05-02 | Joerg Broers | Verfahren zur verminderung der korrosiven wirkung von eisen-iii-ionen auf stahl in sauren beizloesungen |
US4310435A (en) * | 1979-12-06 | 1982-01-12 | The Dow Chemical Co. | Method and composition for removing sulfide-containing scale from metal surfaces |
US4789406A (en) * | 1986-08-20 | 1988-12-06 | Betz Laboratories, Inc. | Method and compositions for penetrating and removing accumulated corrosion products and deposits from metal surfaces |
ES2023397B3 (es) * | 1986-12-01 | 1992-01-16 | Siemens Ag | Procedimiento para la limpieza de un recipiente. |
US4820391A (en) * | 1988-06-16 | 1989-04-11 | The United States Of America As Represented By The United States Department Of Energy | Exhaust gas clean up process |
US5037483A (en) * | 1990-01-30 | 1991-08-06 | Nalco Chemical Company | On-line iron clean-up |
DE4114951A1 (de) * | 1991-05-08 | 1992-11-12 | Siemens Ag | Verfahren zum aufloesen von eisenoxiden und loesungssubstanz dafuer |
DE4117625C2 (de) * | 1991-05-29 | 1997-09-04 | Siemens Ag | Reinigungsverfahren |
DE4131766A1 (de) * | 1991-09-24 | 1993-03-25 | Siemens Ag | Verfahren zur dekontamination des primaerkreises eines kernkraftwerkes |
FR2708628B1 (fr) * | 1993-07-29 | 1997-07-18 | Framatome Sa | Procédé de nettoyage chimique de pièces en matériau métallique. |
US6896826B2 (en) * | 1997-01-09 | 2005-05-24 | Advanced Technology Materials, Inc. | Aqueous cleaning composition containing copper-specific corrosion inhibitor for cleaning inorganic residues on semiconductor substrate |
DE19857342A1 (de) * | 1998-12-11 | 2000-02-17 | Siemens Ag | Verfahren zum Reinigen eines Behälters |
DE10238730A1 (de) * | 2002-08-23 | 2004-03-04 | Framatome Anp Gmbh | Verfahren zur Reinigung des Dampferzeugers eines Druckwasserreaktors |
-
2004
- 2004-11-11 DE DE102004054471A patent/DE102004054471B3/de not_active Expired - Fee Related
-
2005
- 2005-10-25 ES ES05806632T patent/ES2373962T3/es active Active
- 2005-10-25 CA CA2586556A patent/CA2586556C/en not_active Expired - Fee Related
- 2005-10-25 JP JP2007540527A patent/JP5162247B2/ja not_active Expired - Fee Related
- 2005-10-25 WO PCT/EP2005/011409 patent/WO2006053626A1/de active Application Filing
- 2005-10-25 RU RU2007121677/02A patent/RU2360200C2/ru not_active IP Right Cessation
- 2005-10-25 EP EP05806632A patent/EP1819845B1/de not_active Not-in-force
- 2005-10-25 KR KR1020077013128A patent/KR100937563B1/ko not_active IP Right Cessation
- 2005-10-25 CN CNB2005800412585A patent/CN100545316C/zh not_active Expired - Fee Related
- 2005-10-25 US US11/667,619 patent/US20070267046A1/en not_active Abandoned
- 2005-10-25 AT AT05806632T patent/ATE525496T1/de active
-
2007
- 2007-04-30 ZA ZA2007/03492A patent/ZA200703492B/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2006053626A1 (de) | 2006-05-26 |
ATE525496T1 (de) | 2011-10-15 |
KR20070086028A (ko) | 2007-08-27 |
ES2373962T3 (es) | 2012-02-10 |
JP2008519678A (ja) | 2008-06-12 |
US20070267046A1 (en) | 2007-11-22 |
CA2586556A1 (en) | 2006-05-26 |
DE102004054471B3 (de) | 2006-04-27 |
KR100937563B1 (ko) | 2010-01-19 |
ZA200703492B (en) | 2008-04-30 |
RU2007121677A (ru) | 2008-12-20 |
CN101068952A (zh) | 2007-11-07 |
EP1819845B1 (de) | 2011-09-21 |
RU2360200C2 (ru) | 2009-06-27 |
EP1819845A1 (de) | 2007-08-22 |
CN100545316C (zh) | 2009-09-30 |
CA2586556C (en) | 2013-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5055388B2 (ja) | 工業設備及び発電所設備の容器から磁鉄鉱と銅とを含む沈殿物を取り除くための方法 | |
JP5162247B2 (ja) | 発電所の圧力容器から磁鉄鉱含有沈積物を取り除くための浄化方法 | |
JP5050447B2 (ja) | 化学洗浄廃液の処理方法 | |
TWI684998B (zh) | 化學除污方法 | |
CA2362639C (en) | Process for removing deposits from water-carrying systems and devices for water supply | |
UA76650C2 (uk) | Спосіб очищення парогенератора реактора, охолоджуваного водою під тиском | |
WO2016029089A1 (en) | Method for removing materials from coal fire generated catalysts | |
JP4239006B2 (ja) | 硝酸廃液の処理方法 | |
JPS62235490A (ja) | 鉄酸化物の溶解除去法 | |
JP6427920B2 (ja) | 化学洗浄方法 | |
WO2007058132A1 (ja) | 休止中のボイラの防食方法 | |
TWI280334B (en) | Purifying method for the removal of depositions containing magnetit from a pressure-container of a power station | |
JP6572534B2 (ja) | 過酢酸含有排水の処理装置および処理方法 | |
JP2014059076A (ja) | ボイラ水系のスケール除去方法 | |
JPS55142590A (en) | Treating method of water containing hydrazine | |
JPH10323561A (ja) | 脱酸素剤 | |
JP5776357B2 (ja) | ヒドラジンとキレート形成有機化合物を含む排水の処理方法 | |
JP5774870B2 (ja) | 硝酸廃液の処理方法 | |
JP2006297181A (ja) | 水熱反応における対象物供給ラインの処理方法および装置 | |
JP4066195B2 (ja) | 脱酸素剤 | |
CN111018178A (zh) | 含锰酸性溶液中锰的去除方法 | |
JPH06170366A (ja) | 洗浄廃液の処理方法 | |
JPH0852490A (ja) | 嫌気性処理法 | |
JPH06322567A (ja) | 錯体形成体が使用される構成要素の浄化方法 | |
JP2005200768A (ja) | 脱酸素剤 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100628 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100713 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101012 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110927 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111220 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120911 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121009 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20121204 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20121217 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151221 Year of fee payment: 3 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |