GB1048804A - Process for the cleaning of equipment - Google Patents

Process for the cleaning of equipment

Info

Publication number
GB1048804A
GB1048804A GB1041465A GB1041465A GB1048804A GB 1048804 A GB1048804 A GB 1048804A GB 1041465 A GB1041465 A GB 1041465A GB 1041465 A GB1041465 A GB 1041465A GB 1048804 A GB1048804 A GB 1048804A
Authority
GB
United Kingdom
Prior art keywords
sncl2
inhibitor
cleaning
equipment
acid
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
GB1041465A
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.)
VER KUNSTMESTF MEKOG ALBATROS
Original Assignee
VER KUNSTMESTF MEKOG ALBATROS
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 VER KUNSTMESTF MEKOG ALBATROS filed Critical VER KUNSTMESTF MEKOG ALBATROS
Publication of GB1048804A publication Critical patent/GB1048804A/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
    • C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid 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
    • 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
    • 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
    • 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

Abstract

A solution comprising HCl, SnCl2 and an inhibitor is used to clean steel, Cu, Ni, Ni alloys, brass and tin bronze at up to 70 DEG C. to quantity of SnCl2 being maintained constant to keep the redox potential below 280 mV. The inhibitor may be hexamethylene tetramine, alkaloids or quaternary ammonium bases, the acid may be alternatively H2So4, HNO3, citric, sulphamic or phosphoric acid.
GB1041465A 1964-06-09 1965-03-11 Process for the cleaning of equipment Expired GB1048804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6406533A NL6406533A (en) 1964-06-09 1964-06-09

Publications (1)

Publication Number Publication Date
GB1048804A true GB1048804A (en) 1966-11-23

Family

ID=19790264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1041465A Expired GB1048804A (en) 1964-06-09 1965-03-11 Process for the cleaning of equipment

Country Status (9)

Country Link
BE (1) BE660838A (en)
CH (1) CH447764A (en)
DE (1) DE1546213C3 (en)
ES (1) ES309110A1 (en)
FR (1) FR1425820A (en)
GB (1) GB1048804A (en)
LU (1) LU48112A1 (en)
NL (1) NL6406533A (en)
SE (1) SE308051B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2767672C1 (en) * 2021-09-20 2022-03-18 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") Composition for cleaning steam turbine condenser tubes inner surface
RU2767674C1 (en) * 2021-09-20 2022-03-18 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") Method of cleaning and passivating steam turbine condenser tubes inner surfaces from deposits

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH02277786A (en) * 1988-12-02 1990-11-14 Sumitomo Chem Co Ltd Method for cleaning off scale in jacket of glass-lined device
DE10346192B4 (en) * 2003-10-02 2009-08-06 Thyssenkrupp Presta Teccenter Ag Method for rust removal of molded parts and use of the method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2767672C1 (en) * 2021-09-20 2022-03-18 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") Composition for cleaning steam turbine condenser tubes inner surface
RU2767674C1 (en) * 2021-09-20 2022-03-18 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") Method of cleaning and passivating steam turbine condenser tubes inner surfaces from deposits

Also Published As

Publication number Publication date
NL6406533A (en) 1965-12-10
DE1546213B2 (en) 1977-12-08
DE1546213A1 (en) 1970-02-26
ES309110A1 (en) 1965-07-01
SE308051B (en) 1969-01-27
DE1546213C3 (en) 1978-08-03
CH447764A (en) 1967-11-30
BE660838A (en) 1965-09-09
LU48112A1 (en) 1965-05-03
FR1425820A (en) 1966-01-24

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