ATE521732T1 - USE OF AQUEOUS NEUTRAL CLEANING SOLUTION AND METHOD FOR REMOVAL OF ROUGHING ON STAINLESS STEEL - Google Patents

USE OF AQUEOUS NEUTRAL CLEANING SOLUTION AND METHOD FOR REMOVAL OF ROUGHING ON STAINLESS STEEL

Info

Publication number
ATE521732T1
ATE521732T1 AT09705741T AT09705741T ATE521732T1 AT E521732 T1 ATE521732 T1 AT E521732T1 AT 09705741 T AT09705741 T AT 09705741T AT 09705741 T AT09705741 T AT 09705741T AT E521732 T1 ATE521732 T1 AT E521732T1
Authority
AT
Austria
Prior art keywords
cleaning solution
nickel
chromium
solution containing
removal
Prior art date
Application number
AT09705741T
Other languages
German (de)
Inventor
Marc Philippe Vernier
Original Assignee
Ateco Services Ag
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 Ateco Services Ag filed Critical Ateco Services Ag
Application granted granted Critical
Publication of ATE521732T1 publication Critical patent/ATE521732T1/en

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
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
    • 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0042—Reducing agents
    • 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
    • C11D7/22—Organic compounds
    • C11D7/36—Organic compounds containing phosphorus
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
    • C11D2111/16—

Abstract

Use of an aqueous cleaning solution containing a reducing agent and at least one complexing agent to remove rouging on the medium contacted surface of rustless steel, preferably chromium/nickel or chromium/nickel/molybdenum steel in neutral pH range, is claimed. Independent claims are included for: (1) the aqueous cleaning solution containing a reducing agent and at least one, preferably two complexing agents; and (2) a process for the complete removal of rouging resting on the surface of rustless metal material, which is medium contacted surface of rustless steel, preferably chromium/nickel or chromium/nickel/molybdenum steel in neutral pH range, and subsequently repassiving the surface comprising treating the surface with the cleaning solution and completely removing the sediments and subsequently spraying with an aqueous solution containing oxidizing agent and/or with oxygen containing pure water, so that a rustless steel protective passive layer is formed.
AT09705741T 2008-02-01 2009-01-30 USE OF AQUEOUS NEUTRAL CLEANING SOLUTION AND METHOD FOR REMOVAL OF ROUGHING ON STAINLESS STEEL ATE521732T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08150974A EP2090676A1 (en) 2008-02-01 2008-02-01 Method for removing coatings and deposits
PCT/EP2009/051074 WO2009095475A1 (en) 2008-02-01 2009-01-30 Use of an aqueous neutral cleaning solution and method for removing rouging from stainless steel surfaces

Publications (1)

Publication Number Publication Date
ATE521732T1 true ATE521732T1 (en) 2011-09-15

Family

ID=39562383

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09705741T ATE521732T1 (en) 2008-02-01 2009-01-30 USE OF AQUEOUS NEUTRAL CLEANING SOLUTION AND METHOD FOR REMOVAL OF ROUGHING ON STAINLESS STEEL

Country Status (5)

Country Link
EP (2) EP2090676A1 (en)
AT (1) ATE521732T1 (en)
CH (1) CH699016B1 (en)
DK (1) DK2122011T3 (en)
WO (1) WO2009095475A1 (en)

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DE102012201787B4 (en) * 2012-02-07 2015-10-22 Mösslein Gmbh Process for removing iron, manganese and calcareous deposits in drinking water distribution systems; aqueous cleaning solution and dry powder mixture therefor
CN103911625B (en) * 2014-04-25 2016-03-16 湖南大学 A kind of neutral degreaser rust remover and preparation method thereof
US20180371379A1 (en) * 2015-08-19 2018-12-27 Beratherm Ag Aqueous cleaning solution for removal of rouging deposits on media-contacted surfaces of stainless steels, use thereof and process for production thereof
DE102015114481B4 (en) 2015-08-31 2018-05-09 Nikolay Tzvetkov Tzvetkov AQUEOUS-NEUTRAL DEROUGING, DEFROSTING, PASSIVATION AND DECONTAMINATION SOLUTIONS AND METHOD FOR THEIR USE
EP3249076B1 (en) 2016-05-24 2018-08-22 Technochim SA Products for the preventive treatment of stainless steel and related methods
CN110408757A (en) * 2018-04-28 2019-11-05 南京理工大学 A kind of preparation method of high-strength plasticity matching 316L stainless steel materials
ES2853482T3 (en) 2018-07-23 2021-09-16 Technochim Sa Method to remove redness from stainless steel
CN110144594A (en) * 2019-06-18 2019-08-20 雅思汀娜（北京）科技有限公司 A kind of detergent and its preparation method and application
US20230250537A1 (en) * 2020-06-10 2023-08-10 Chemetall Gmbh Aqueous Pickling Compositions and Their Use
CN115698381A (en) * 2020-06-10 2023-02-03 凯密特尔有限责任公司 Aqueous pickling composition and use thereof
CN111809189A (en) * 2020-07-20 2020-10-23 清研高装科技(天津)有限公司 Water-based stainless steel cleaning agent and preparation method thereof
EP4269657A1 (en) 2022-04-29 2023-11-01 Technochim SA Method for dissolving metal oxides from life sciences equipment

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US3297580A (en) * 1964-06-17 1967-01-10 Edgar C Pitzer Neutral metal cleaning compositions containing hydrazine and a polycarboxylamino acid
GB1496805A (en) * 1975-09-19 1978-01-05 Unilever Ltd Dithionite composition
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JPS59232279A (en) * 1983-06-13 1984-12-27 Hitachi Ltd Removing method of oxide on metallic surface
FR2590716B1 (en) * 1985-11-26 1992-05-15 Electricite De France PROCESS FOR DECONTAMINATION OF NUCLEAR REACTOR WALLS, IN PARTICULAR WALLS OF THE PRIMARY CIRCUIT OF NUCLEAR REACTORS WITH PRESSURIZED WATER CIRCUIT
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US4810405A (en) * 1987-10-21 1989-03-07 Dearborn Chemical Company, Limited Rust removal and composition thereof
US5037483A (en) * 1990-01-30 1991-08-06 Nalco Chemical Company On-line iron clean-up
US5078894A (en) * 1990-04-30 1992-01-07 Arch Development Corporation Formulations for iron oxides dissolution
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KR20020000796A (en) * 1999-03-26 2002-01-05 추후 Rust and scale removal composition and process
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Also Published As

Publication number Publication date
EP2122011B1 (en) 2011-08-24
EP2090676A1 (en) 2009-08-19
EP2122011A1 (en) 2009-11-25
CH699016B1 (en) 2010-10-29
WO2009095475A1 (en) 2009-08-06
DK2122011T3 (en) 2011-11-21

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