EP0609125B1 - Composition de nettoyage stabilisée à base de 1,1-dichloro-1-fluoréthane et de méthanol - Google Patents
Composition de nettoyage stabilisée à base de 1,1-dichloro-1-fluoréthane et de méthanol Download PDFInfo
- Publication number
- EP0609125B1 EP0609125B1 EP94400141A EP94400141A EP0609125B1 EP 0609125 B1 EP0609125 B1 EP 0609125B1 EP 94400141 A EP94400141 A EP 94400141A EP 94400141 A EP94400141 A EP 94400141A EP 0609125 B1 EP0609125 B1 EP 0609125B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- methanol
- fluoroethane
- dichloro
- composition
- dioxolane
- 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 - Lifetime
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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/261—Alcohols; Phenols
-
- 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
- C11D7/28—Organic compounds containing halogen
- C11D7/30—Halogenated hydrocarbons
-
- 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
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5018—Halogenated solvents
-
- 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
- C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
- C23G5/02829—Ethanes
- C23G5/02832—C2H3Cl2F
-
- 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02854—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons characterised by the stabilising or corrosion inhibiting additives
- C23G5/02861—Oxygen-containing compounds
- C23G5/02877—Ethers
-
- 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
- C11D7/267—Heterocyclic compounds
-
- 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
- C11D7/28—Organic compounds containing halogen
Definitions
- the present invention relates to the field of chlorofluorinated hydrocarbons and more particularly relates to a stabilized composition based on 1,1-dichloro-1-fluoroethane and methanol, usable as a cleaning and degreasing of solid surfaces, in particular in defluxing circuits printing and degreasing of mechanical parts.
- 1,1,2-Trichloro-1,2,2-trifluoroethane known in the art as designation F113, is widely used in the industry for cleaning and degreasing of solid surfaces. It is however part of the chlorofluorocarbons perhalogens (CFCs) suspected of attacking and degrading stratospheric ozone, and will therefore have to be replaced in the short term by substitutes having little or no destructive effect with respect to ozone, such as 1,1-dichloro-1-fluoroethane.
- CFCs chlorofluorocarbons perhalogens
- F141b has the advantage, like F113, of forming a composition with methanol azeotropic particularly useful for cleaning operations (patents EP 325,265, US 4,842,764 and JP 2,273,632).
- the chlorofluorinated hydrocarbon associated with methanol is F113 or F141b
- the nitromethane is usually used to stabilize the azeotropic composition F113-methanol and this same compound has also been proposed in the patent US 4,816,174 as stabilizer of the azeotropic composition F141b-methanol.
- 4,842,764 mentions the amines secondary and tertiary, olefins and cycloolefins, alkylene oxides, sulfoxides, sulfones, nitrites and nitriles, and acetylenic alcohols or ethers.
- dimethoxymethane and 1,3-dioxolane are excellent stabilizers for F141b-methanol compositions. They allow indeed to inhibit the reaction of methanol with light metals such as aluminum and magnesium (very sensitive) and exhibit very different behavior in this respect that of very similar compounds such as dimethoxyethane, diethyl ether, methyl tert-butyl ether, furan and tetrahydrofuran.
- the subject of the invention is therefore a cleaning composition based on F141b and methanol, characterized in that it contains, as a stabilizer, 0.01 to 1% (preferably 0.1 to 0.5%) of dimethoxymethane or 1,3-dioxolane based on the total weight of methanol and F141b.
- the proportion by weight of methanol is advantageously between 0.2 and 10% and that of F141b between 99.8 and 90%.
- a more particularly preferred composition is that in which the respective proportions of methanol and F141b correspond approximately to the azeotropic composition, ie 3 to 5% of methanol and 97 to 95% of F141b.
- compositions according to the invention do not have a flash point in the standard determination conditions and can therefore be used safely in machines usually used for cleaning welding fluxes, the degreasing heavy metal parts or cleaning mechanical parts high quality and high accuracy such as, for example, gyroscopes and military or aerospace equipment.
- a composition according to the invention is prepared by adding 0.2% by weight (i.e. 12 g) of 1,3-dioxolane to 5 liters of azeotropic mixture F141b-methanol (96% F141b and 4% methanol), then this composition is introduced into a small BRANSON cleaning machine and reflux door for 4 hours to that the system is in balance.
- Example 1 is repeated, replacing the 12 g of 1,3-dioxolane with 24 g of dimethoxymethane (0.4% by weight). After 4 hours of reflux so that the system is in equilibrium, the analysis of a fraction of the condensate returns by gas chromatography indicates that the vapor phase is stabilized.
- COMPOSITION (% by weight) F141b Methanol dimethoxymethane Initial mix 95.62 3.98 0.40 Collected fraction 95.77 3.99 0.24
- Example 1 In a small single-tank laboratory machine equipped with a generator 125 ml of the composition of Example 1 are introduced, then the liquid when boiling.
- the quality of the cleaning is evaluated by determining the ionic residue rate according to the standard procedure IPC-TM 650 n ° 2.3.25 and 2.3.26 and according to the MIL-STD-2000 standard.
- the value obtained, 1.87 ⁇ g eq.NaCl / cm 2 is much lower than the threshold (2.5 ⁇ g eq. NaCl / cm 2 ) tolerated in the field of electronics.
- Example 4 is repeated, but with the composition of Example 2 stabilized at dimethoxymethane.
- the rate of ionic residue is then 1.86 ⁇ g eq. NaCl / cm 2 .
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Manufacturing Of Printed Wiring (AREA)
Description
COMPOSITION (% poids) | |||
F141b | Méthanol | 1,3-dioxolane | |
Mélange initial | 95,8 | 4 | 0,2 |
Fraction receuillie | 96,08 | 3,8 | 0,12 |
COMPOSITION (% poids) | |||
F141b | Méthanol | diméthoxyméthane | |
Mélange initial | 95,62 | 3,98 | 0,40 |
Fraction recueillie | 95,77 | 3,99 | 0,24 |
Claims (5)
- Composition de nettoyage à base de 1,1-dichloro-1-fluoroéthane et de méthanol, caractérisée en ce qu'elle contient, à titre de stabilisant, de 0,01 à 1 % de diméthoxyméthane ou de 1,3-dioxolane par rapport au poids total de méthanol et de 1,1-dichloro-1-fluoroéthane.
- Composition selon la revendication 1, dans laquelle la proportion de diméthoxyméthane ou de 1,3-dioxolane est comprise entre 0,1 et 0,5 %.
- Composition selon la revendication 1 ou 2, dans laquelle le méthanol représente 0,2 à 10 %, de préférence 3 à 5 %, du poids total de méthanol et de 1,1-dichloro-1-fluoroéthane.
- Application d'une composition selon l'une des revendications 1 à 3 au nettoyage de surfaces solides.
- Application selon la revendication 4 au défluxage des circuits imprimés et au dégraissage des pièces mécaniques.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9300781 | 1993-01-27 | ||
FR9300781A FR2700776A1 (fr) | 1993-01-27 | 1993-01-27 | Composition de nettoyage stabilisée à base de 1,1-dichloro-1-fluoroéthane et de méthanol. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0609125A1 EP0609125A1 (fr) | 1994-08-03 |
EP0609125B1 true EP0609125B1 (fr) | 1999-05-12 |
Family
ID=9443388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94400141A Expired - Lifetime EP0609125B1 (fr) | 1993-01-27 | 1994-01-24 | Composition de nettoyage stabilisée à base de 1,1-dichloro-1-fluoréthane et de méthanol |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0609125B1 (fr) |
JP (1) | JP2510951B2 (fr) |
KR (1) | KR960006562B1 (fr) |
ES (1) | ES2133502T3 (fr) |
FR (1) | FR2700776A1 (fr) |
TW (1) | TW336956B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900024901A1 (it) | 2019-12-19 | 2021-06-19 | Clean Consult Int S P A | Composizione pulente di dimetossimetano e diossolano |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4082734B2 (ja) * | 1996-03-04 | 2008-04-30 | アルベマール・コーポレーシヨン | 安定化された臭化アルカン溶媒 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016215A (en) * | 1970-08-21 | 1977-04-05 | Toyo Soda Manufacturing Co., Ltd. | Stabilization of 1,1,1-trichloroethane |
US5246617A (en) * | 1988-01-20 | 1993-09-21 | E. I. Du Pont De Nemours And Company | Azeotropic compositions of 1,1-dichloro-1-fluoroethane and methanol/ethanol |
US4842764A (en) * | 1988-05-03 | 1989-06-27 | Allied-Signal Inc. | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane and methanol |
US4816174A (en) * | 1988-05-03 | 1989-03-28 | Allied-Signal Inc. | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane |
WO1989010984A1 (fr) * | 1988-05-03 | 1989-11-16 | Allied-Signal Inc. | Compositions de 1,1-dichloro-1-fluoroethane et de methanol analogues a un azeotrope |
JPH02273632A (ja) * | 1989-04-14 | 1990-11-08 | Asahi Glass Co Ltd | フッ素化炭化水素系共沸混合物 |
AU7311791A (en) * | 1990-03-02 | 1991-09-18 | Allied-Signal Inc. | A method of cleaning using azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane |
WO1991013969A1 (fr) * | 1990-03-13 | 1991-09-19 | E.I. Du Pont De Nemours And Company | Compositions azeotropiques ou analogues a l'azeotrope stabilisees a point d'ebullition constant de dichlorotrifluoroethane, 1,1-dichloro-1-fluoroethane comportant du methanol et/ou de l'ethanol |
WO1992010453A1 (fr) * | 1990-12-14 | 1992-06-25 | Allied-Signal Inc. | 1,1-dichloro-1-fluoroethane stabilise |
US5137651A (en) * | 1990-12-19 | 1992-08-11 | Allied-Signal Inc. | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally methanol or ethanol |
US5124063A (en) * | 1990-12-20 | 1992-06-23 | Allied-Signal Inc. | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms |
JPH05155791A (ja) * | 1991-12-04 | 1993-06-22 | Central Glass Co Ltd | 共沸様組成物の安定化方法 |
-
1993
- 1993-01-27 FR FR9300781A patent/FR2700776A1/fr active Pending
-
1994
- 1994-01-21 TW TW083100500A patent/TW336956B/zh active
- 1994-01-24 KR KR1019940001216A patent/KR960006562B1/ko not_active IP Right Cessation
- 1994-01-24 ES ES94400141T patent/ES2133502T3/es not_active Expired - Lifetime
- 1994-01-24 EP EP94400141A patent/EP0609125B1/fr not_active Expired - Lifetime
- 1994-01-27 JP JP6007542A patent/JP2510951B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900024901A1 (it) | 2019-12-19 | 2021-06-19 | Clean Consult Int S P A | Composizione pulente di dimetossimetano e diossolano |
Also Published As
Publication number | Publication date |
---|---|
JP2510951B2 (ja) | 1996-06-26 |
KR940018459A (ko) | 1994-08-18 |
TW336956B (en) | 1998-07-21 |
JPH06256796A (ja) | 1994-09-13 |
EP0609125A1 (fr) | 1994-08-03 |
ES2133502T3 (es) | 1999-09-16 |
KR960006562B1 (ko) | 1996-05-17 |
FR2700776A1 (fr) | 1994-07-29 |
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