EP0378013A3 - Product for cleaning plate exchangers, especially in the nuclear industry, and process using this product - Google Patents

Product for cleaning plate exchangers, especially in the nuclear industry, and process using this product Download PDF

Info

Publication number
EP0378013A3
EP0378013A3 EP19890403011 EP89403011A EP0378013A3 EP 0378013 A3 EP0378013 A3 EP 0378013A3 EP 19890403011 EP19890403011 EP 19890403011 EP 89403011 A EP89403011 A EP 89403011A EP 0378013 A3 EP0378013 A3 EP 0378013A3
Authority
EP
European Patent Office
Prior art keywords
product
nuclear industry
cleaning plate
exchangers
plate exchangers
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.)
Withdrawn
Application number
EP19890403011
Other languages
German (de)
French (fr)
Other versions
EP0378013A2 (en
Inventor
Claude Digiaro
Jean-Michel Freal-Saison
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel France SAS
Original Assignee
Henkel France SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel France SAS filed Critical Henkel France SAS
Publication of EP0378013A2 publication Critical patent/EP0378013A2/en
Publication of EP0378013A3 publication Critical patent/EP0378013A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides

Abstract

L'invention concerne un produit pour la préparation d'une solution aqueuse permettant le net­ toyage chimique des échangeurs à plaques notamment dans l'industrie nucléaire par circulation de cette solution dans les échangeurs à nettoyer et recyclage de celle-ci sur une cuve de stockage, ainsi que le procédé mis en oeuvre lors du l'utilisation du pro­ duit. The invention relates to a product for the preparation of an aqueous solution allowing the net chemical coating of plate heat exchangers in particular in the nuclear industry by circulation of this solution in exchangers to be cleaned and recycled of it on a storage tank, as well as the process implemented when using the pro duit.

Ce produit est caractérisé en ce qu'il contient, en tant que composants actifs, entre 0 et 50 % de composé alcalin fort et entre 0 et 50 % d'a­ gent complexant. This product is characterized in that it contains, as active components, between 0 and 50% of strong alkaline compound and between 0 and 50% of a gent complexing.

EP19890403011 1988-12-29 1989-10-31 Product for cleaning plate exchangers, especially in the nuclear industry, and process using this product Withdrawn EP0378013A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817411A FR2641370B1 (en) 1988-12-29 1988-12-29 PRODUCT FOR THE CLEANING OF PLATE EXCHANGERS ESPECIALLY IN THE NUCLEAR INDUSTRY AS WELL AS PROCESS IMPLEMENTED WHEN USING THIS PRODUCT
FR8817411 1988-12-29

Publications (2)

Publication Number Publication Date
EP0378013A2 EP0378013A2 (en) 1990-07-18
EP0378013A3 true EP0378013A3 (en) 1991-10-16

Family

ID=9373578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890403011 Withdrawn EP0378013A3 (en) 1988-12-29 1989-10-31 Product for cleaning plate exchangers, especially in the nuclear industry, and process using this product

Country Status (2)

Country Link
EP (1) EP0378013A3 (en)
FR (1) FR2641370B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002710A1 (en) * 2000-01-22 2001-08-02 Henkel Ecolab Gmbh & Co Ohg Production of creamy alkaline-aqueous cleaning agents containing complexing agents
RU2514569C1 (en) * 2013-02-08 2014-04-27 Александр Николаевич Полевич Method for steam-chemical treatment and passivation of internal surfaces of heat-exchange pipes
CN111121483B (en) * 2019-12-12 2021-10-29 上海核工程研究设计院有限公司 Loop system for power station, flushing method of loop system and power station with loop system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869870A (en) * 1959-07-30 1961-06-07 Reddish Chemical Company Ltd Improvements in the cleaning of heat exchangers of the plate type
DE1517473A1 (en) * 1964-11-19 1969-12-11 Nalco Chemical Co Process for removing scale and preventing scale formation
DE1617199A1 (en) * 1967-09-21 1971-02-18 Gunter Schroeder & Co Use of a combination as an alkaline detergent for milk and cream heaters
FR2206382A1 (en) * 1971-11-12 1974-06-07 Diversey France Liq. dish washing compsn. - of surfactant hydrotrope, sequestering agent and alkali metal hydroxide
FR2244721A1 (en) * 1973-09-26 1975-04-18 Diversey France Sequestering agent mixts. to control scale due to hard water - e.g. in commercial dishwashing machines
FR2540511A1 (en) * 1983-02-04 1984-08-10 Henkel France Liquid cleaning composition, and cleaning process using this composition
US4521332A (en) * 1981-03-23 1985-06-04 Pennwalt Corporation Highly alkaline cleaning dispersion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869870A (en) * 1959-07-30 1961-06-07 Reddish Chemical Company Ltd Improvements in the cleaning of heat exchangers of the plate type
DE1517473A1 (en) * 1964-11-19 1969-12-11 Nalco Chemical Co Process for removing scale and preventing scale formation
DE1617199A1 (en) * 1967-09-21 1971-02-18 Gunter Schroeder & Co Use of a combination as an alkaline detergent for milk and cream heaters
FR2206382A1 (en) * 1971-11-12 1974-06-07 Diversey France Liq. dish washing compsn. - of surfactant hydrotrope, sequestering agent and alkali metal hydroxide
FR2244721A1 (en) * 1973-09-26 1975-04-18 Diversey France Sequestering agent mixts. to control scale due to hard water - e.g. in commercial dishwashing machines
US4521332A (en) * 1981-03-23 1985-06-04 Pennwalt Corporation Highly alkaline cleaning dispersion
FR2540511A1 (en) * 1983-02-04 1984-08-10 Henkel France Liquid cleaning composition, and cleaning process using this composition

Also Published As

Publication number Publication date
FR2641370A1 (en) 1990-07-06
FR2641370B1 (en) 1994-05-27
EP0378013A2 (en) 1990-07-18

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