GB1048804A - Process for the cleaning of equipment - Google Patents
Process for the cleaning of equipmentInfo
- Publication number
- GB1048804A GB1048804A GB10414/65A GB1041465A GB1048804A GB 1048804 A GB1048804 A GB 1048804A GB 10414/65 A GB10414/65 A GB 10414/65A 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
Links
- 238000004140 cleaning Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 229910021626 Tin(II) chloride Inorganic materials 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- 239000003112 inhibitor Substances 0.000 abstract 2
- 235000011150 stannous chloride Nutrition 0.000 abstract 2
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 abstract 2
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 abstract 1
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229930013930 alkaloid Natural products 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 229960004011 methenamine Drugs 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 125000001453 quaternary ammonium group Chemical group 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011135 tin Substances 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
Classifications
-
- 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
-
- 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
-
- 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
- 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
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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.
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 |
|---|---|---|---|
| GB10414/65A 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Families Citing this family (3)
| 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 and removing scale inside the jacket of glass-lined equipment |
| DE10346192B4 (en) * | 2003-10-02 | 2009-08-06 | Thyssenkrupp Presta Teccenter Ag | Method for rust removal of molded parts and use of the method |
-
1964
- 1964-06-09 NL NL6406533A patent/NL6406533A/xx unknown
-
1965
- 1965-02-08 ES ES0309110A patent/ES309110A1/en not_active Expired
- 1965-03-01 FR FR7432A patent/FR1425820A/en not_active Expired
- 1965-03-03 LU LU48112A patent/LU48112A1/xx unknown
- 1965-03-09 BE BE660838A patent/BE660838A/xx unknown
- 1965-03-11 GB GB10414/65A patent/GB1048804A/en not_active Expired
- 1965-03-23 SE SE3720/65A patent/SE308051B/xx unknown
- 1965-04-01 DE DE1546213A patent/DE1546213C3/en not_active Expired
- 1965-04-07 CH CH487165A patent/CH447764A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| SE308051B (en) | 1969-01-27 |
| NL6406533A (en) | 1965-12-10 |
| FR1425820A (en) | 1966-01-24 |
| ES309110A1 (en) | 1965-07-01 |
| BE660838A (en) | 1965-09-09 |
| CH447764A (en) | 1967-11-30 |
| DE1546213C3 (en) | 1978-08-03 |
| LU48112A1 (en) | 1965-05-03 |
| DE1546213B2 (en) | 1977-12-08 |
| DE1546213A1 (en) | 1970-02-26 |
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