DE69023359D1 - Cleaning processes for the inner surfaces of industrial metal apparatus, e.g. made of iron or steel. - Google Patents

Cleaning processes for the inner surfaces of industrial metal apparatus, e.g. made of iron or steel.

Info

Publication number
DE69023359D1
DE69023359D1 DE69023359T DE69023359T DE69023359D1 DE 69023359 D1 DE69023359 D1 DE 69023359D1 DE 69023359 T DE69023359 T DE 69023359T DE 69023359 T DE69023359 T DE 69023359T DE 69023359 D1 DE69023359 D1 DE 69023359D1
Authority
DE
Germany
Prior art keywords
iron
steel
inner surfaces
cleaning processes
industrial metal
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
Application number
DE69023359T
Other languages
German (de)
Other versions
DE69023359T2 (en
Inventor
Paulus Wilhelmus N Kok
Thomas Everhardus H Kok
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE69023359D1 publication Critical patent/DE69023359D1/en
Application granted granted Critical
Publication of DE69023359T2 publication Critical patent/DE69023359T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
DE1990623359 1989-01-18 1990-01-18 Cleaning processes for the inner surfaces of industrial metal apparatus, e.g. made of iron or steel. Expired - Fee Related DE69023359T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8900106A NL8900106A (en) 1989-01-18 1989-01-18 METHOD FOR CLEANING METALS, FOR example IRONS OR STEELS, INTERNAL SURFACES OF INDUSTRIAL EQUIPMENT.

Publications (2)

Publication Number Publication Date
DE69023359D1 true DE69023359D1 (en) 1995-12-14
DE69023359T2 DE69023359T2 (en) 1996-04-25

Family

ID=19853970

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990623359 Expired - Fee Related DE69023359T2 (en) 1989-01-18 1990-01-18 Cleaning processes for the inner surfaces of industrial metal apparatus, e.g. made of iron or steel.

Country Status (4)

Country Link
EP (1) EP0380169B1 (en)
DE (1) DE69023359T2 (en)
ES (1) ES2081338T3 (en)
NL (1) NL8900106A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO175906C (en) * 1992-05-18 1995-01-04 Leif Inge Aanestad Method of metal coating interior surfaces of tanks and pipes
US6837985B2 (en) * 1999-09-20 2005-01-04 Aeromet Technologies, Inc. External counter electrode
US9102604B1 (en) 2010-02-15 2015-08-11 Baxter International Inc. Methods for cleaning distilling columns

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR423829A (en) * 1910-12-19 1911-04-27 Robert Augustus Chesebrough Filtration process
NL155315B (en) * 1964-06-09 1977-12-15 Ver Kunstmestfabriekn Mekog Al PROCEDURE FOR CLEANING IRONS OR STEEL, INTERNAL SURFACES OF INDUSTRIAL EQUIPMENT
US3686123A (en) * 1971-04-05 1972-08-22 Kurita Industrial Co Ltd Cleaning composition
DE2457235A1 (en) * 1974-12-04 1976-06-10 Peter Vodicka Protecting descaled pickled or cleaned metal articles - against attack by ferric cations by redn. using metals or water soluble cpds.
JPS5852557B2 (en) * 1979-03-29 1983-11-24 三菱瓦斯化学株式会社 How to prevent corrosion during chemical cleaning
FR2562914A1 (en) * 1984-04-16 1985-10-18 Solvay PROCESS FOR INHIBITING CORROSION OF A METAL MASS IN CONTACT WITH AN ACIDIC BATH CONTAINING AN OXIDANT

Also Published As

Publication number Publication date
ES2081338T3 (en) 1996-03-01
DE69023359T2 (en) 1996-04-25
NL8900106A (en) 1990-08-16
EP0380169A1 (en) 1990-08-01
EP0380169B1 (en) 1995-11-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee