GB1116895A - Process for cleaning metal surfaces - Google Patents

Process for cleaning metal surfaces

Info

Publication number
GB1116895A
GB1116895A GB2604366A GB2604366A GB1116895A GB 1116895 A GB1116895 A GB 1116895A GB 2604366 A GB2604366 A GB 2604366A GB 2604366 A GB2604366 A GB 2604366A GB 1116895 A GB1116895 A GB 1116895A
Authority
GB
United Kingdom
Prior art keywords
acid
metal surfaces
acids
cleaning metal
sulphamic
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
Application number
GB2604366A
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.)
Borg Holding AG
Original Assignee
Borg Holding 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 Borg Holding AG filed Critical Borg Holding AG
Publication of GB1116895A publication Critical patent/GB1116895A/en
Expired legal-status Critical Current

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
    • C23G1/08—Iron or steel
    • C23G1/088—Iron or steel solutions containing organic 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
    • C11D7/08—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
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/265—Carboxylic acids or salts thereof
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

Metal surfaces, e.g. boilers and stainless steel pipes, are cleaned by applying an aqueous solution of a synergistic mixture of a sulphamic acid or salt or ester thereof and an aliphatic hydroxycarboxylic acid, e.g. glycollic acid or metyltartronic acid. Other acids not exhibiting a synergistic cleaning effect with sulphamic acid e.g. citric, lactic and gluconic acids may also be present. Corrosion inhibitors and sequestering agents, e.g. e.d.t.a., may also be included. Other additives may be: NH4F, NH4HF2, NaF, HF, HNO3, N2H4 or NH2OH. The solution may be used at 90-150 DEG C. and may have a pH as low as 1.5 by the addition of H2SO4.
GB2604366A 1965-06-11 1966-06-10 Process for cleaning metal surfaces Expired GB1116895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH818365A CH482031A (en) 1965-06-11 1965-06-11 Process for cleaning production plants, pipe systems and metal parts, in particular boiler and refinery plants, and means for their execution

Publications (1)

Publication Number Publication Date
GB1116895A true GB1116895A (en) 1968-06-12

Family

ID=4336434

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2604366A Expired GB1116895A (en) 1965-06-11 1966-06-10 Process for cleaning metal surfaces

Country Status (9)

Country Link
AT (1) AT263480B (en)
CH (1) CH482031A (en)
DE (1) DE1546093A1 (en)
DK (1) DK131115B (en)
ES (1) ES327779A1 (en)
GB (1) GB1116895A (en)
IL (1) IL25944A (en)
NL (1) NL6608076A (en)
SE (1) SE328748B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562710A1 (en) * 1984-04-05 1985-10-11 Electricite De France PROCESS FOR REMOVING DEPOSITS FORMED IN A PRESSURIZED WATER NUCLEAR REACTOR VAPOR GENERATOR
CN113293386A (en) * 2021-05-28 2021-08-24 西安热工研究院有限公司 Chemical cleaning agent for insoluble scale of seawater desalination device
US11312048B2 (en) * 2017-01-10 2022-04-26 Guangdong Everwin Precision Technology Co., Ltd. Surface treatment method of material, material product and composite material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562710A1 (en) * 1984-04-05 1985-10-11 Electricite De France PROCESS FOR REMOVING DEPOSITS FORMED IN A PRESSURIZED WATER NUCLEAR REACTOR VAPOR GENERATOR
EP0158566A1 (en) * 1984-04-05 1985-10-16 Electricite De France Process for eliminating deposits in a steam generator of a nuclear pressurized water reactor
US4686067A (en) * 1984-04-05 1987-08-11 Electricite De France Service National Process for eliminating deposits formed in a steam generator of a pressurized water nuclear reactor
US11312048B2 (en) * 2017-01-10 2022-04-26 Guangdong Everwin Precision Technology Co., Ltd. Surface treatment method of material, material product and composite material
CN113293386A (en) * 2021-05-28 2021-08-24 西安热工研究院有限公司 Chemical cleaning agent for insoluble scale of seawater desalination device

Also Published As

Publication number Publication date
DK131115C (en) 1975-10-27
SE328748B (en) 1970-09-21
IL25944A (en) 1970-06-17
CH482031A (en) 1969-11-30
DE1546093A1 (en) 1969-12-11
ES327779A1 (en) 1967-04-01
AT263480B (en) 1968-07-25
DK131115B (en) 1975-05-26
NL6608076A (en) 1966-12-12

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