GB801759A - Improvements in or relating to heat exchange systems and compositions for cleaning such systems - Google Patents
Improvements in or relating to heat exchange systems and compositions for cleaning such systemsInfo
- Publication number
- GB801759A GB801759A GB312956A GB312956A GB801759A GB 801759 A GB801759 A GB 801759A GB 312956 A GB312956 A GB 312956A GB 312956 A GB312956 A GB 312956A GB 801759 A GB801759 A GB 801759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- acids
- alkali metal
- preferred
- cooling system
- 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
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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/364—Organic compounds containing phosphorus containing nitrogen
-
- 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
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
801,759. Removing incrustation. KELLEY, E. J., and SMITH BROS. & CO. (CHEMICALS), Ltd. Dec. 28, 1956 [Jan. 31, 1956], No. 3129/56. Class 123(1) Scale and insoluble corrosion products in a heat exchange system employing an. aqueous medium, such. as the cooling system of an internal combustion engine, are removed by introducing into the medium an aminopolycarboxylic acid, an aminophosphoric acid or an alkali metal or ammonium salt thereof, the substances dissolving the scale &c. during the normal running of the engine, without harmful effect on the cooling system, which can then be drained at a convenient time. The aminopolycarboxylic acids and aminophosphoric acids are the condensation products of acids such as acetic, oxalic, citric and tartaric acids and phosphoric acid respectively with amines such as primary, alkylenediamines suitably containing from two to six carbon atoms and primary arylenediamines, the preferred aminopolycarboxylic acid being ethylenediamine-tetraacetic acid and its preferred alkali metal salt being the sodium salt. The preferred aminophosphoric acid is ethylenediaminephosphoric acid and its preferred alkali metal salt is the sodium salt. The composition may also include one or more alkali metal, ammonium or amine salts of phosphoric, acetic, oxalic, citric or tartaric acids, and an anti oxidant such. as 2:4-dimethyl-6-tert.-butylphenol may also be added. In an example, eight parts of tetrasodium ethylenediamine tetraacetate are dissolved in 12 parts of water, 0.5 parts of ammonia solution (Sp.Gr. .880) are added and finally the solution is adjusted to pH 3 to 7 with orthophosphoric acid to form a solution for cleaning the water cooling system of a road vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB312956A GB801759A (en) | 1956-01-31 | 1956-01-31 | Improvements in or relating to heat exchange systems and compositions for cleaning such systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB312956A GB801759A (en) | 1956-01-31 | 1956-01-31 | Improvements in or relating to heat exchange systems and compositions for cleaning such systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB801759A true GB801759A (en) | 1958-09-17 |
Family
ID=9752469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB312956A Expired GB801759A (en) | 1956-01-31 | 1956-01-31 | Improvements in or relating to heat exchange systems and compositions for cleaning such systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB801759A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2989037A (en) * | 1959-06-30 | 1961-06-20 | Filippino Samuel Robert | Automatic gravity feed water system and control |
GB2138837A (en) * | 1983-04-13 | 1984-10-31 | Dearborn Chemicals Co | Corrosion inhibiting functional fluid |
-
1956
- 1956-01-31 GB GB312956A patent/GB801759A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2989037A (en) * | 1959-06-30 | 1961-06-20 | Filippino Samuel Robert | Automatic gravity feed water system and control |
GB2138837A (en) * | 1983-04-13 | 1984-10-31 | Dearborn Chemicals Co | Corrosion inhibiting functional fluid |
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