DE1298836B - Process for cleaning objects made of rigid material - Google Patents
Process for cleaning objects made of rigid materialInfo
- Publication number
- DE1298836B DE1298836B DE1964W0037757 DEW0037757A DE1298836B DE 1298836 B DE1298836 B DE 1298836B DE 1964W0037757 DE1964W0037757 DE 1964W0037757 DE W0037757 A DEW0037757 A DE W0037757A DE 1298836 B DE1298836 B DE 1298836B
- Authority
- DE
- Germany
- Prior art keywords
- mixture
- rigid material
- parts
- treatment
- ammonia
- 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.)
- Pending
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
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5018—Halogenated solvents
-
- 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
- C11D7/06—Hydroxides
-
- 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
- C11D7/265—Carboxylic acids or salts thereof
-
- 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
- C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
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)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Bei der Verwendung von Chlorkohlenwasserstoffen für die Reinigung von starrem Material, insbesondere von Metallteilen, hat sich als nachteilig erwiesen, daß diese Lösungsmittel zwar hervorragend Fette, Öle, Wachse, bestimmte Harze und verwandte Körper lösen, unlösliche Materialien aber, wie beispielsweise Schleifmittel oder Staub, auf der Oberfläche des zu reinigenden Gutes zurücklassen. Die Entfernung dieser Rückstände bedingt in allen Fällen eine zeitraubende, manuelle Nacharbeit.When using chlorinated hydrocarbons for cleaning rigid material, especially metal parts, it has been found to be disadvantageous that these solvents dissolve fats, oils, waxes, certain resins and related bodies exceptionally well, but insoluble materials such as abrasives or dust, leave behind on the surface of the item to be cleaned. The removal of these residues requires time-consuming, manual rework in all cases.
Nun umfaßt ein großer Teil des Waschgutes die Halb- und Fertigfabrikate, die nach einem Schleifoder Poliervorgang oder nach einer spanlosen Kaltverformung mit Polierpasten- oder Schleifmittelrückständen bzw. mit Metallabrieb verunreinigt sind und deren Oberfläche Schleif-, Polier- oder Gleitmittel und Flugstaub aus der Luft aufweist. Diese Warenart muß nicht nur entfettet, entwachst oder entölt, sondern gereinigt werden, damit sie beispielsweise anschließend galvanisiert, lackiert, elektrisch oxydiert, ao d. h. einer Oberflächenveredelung unterzogen werden kann.A large part of the laundry includes semi-finished and finished products that are contaminated with polishing paste or abrasive residues or with metal abrasion after a grinding or polishing process or after non-cutting cold forming and whose surface has grinding, polishing or lubricating agents and airborne dust . This type of goods must not only degreased, de-waxed or de-oiled, but be cleaned so that, for example, then galvanized, coated, electrically oxidized, ao ie a surface coating may be subjected.
Es ist bekannt, daß zu diesem Zweck mit großem Aufwand ultrabeschallte Lösungsmittelbäder eingesetzt werden, in denen die auf der Warenoberfläche a5 entstehende Kavitation die Aufgabe übernimmt, in der Druckphase Festkörper, die unlöslich sind, abzudrücken. It is known that for this purpose ultrasound solvent baths are used at great expense, in which the cavitation occurring on the surface of the goods a5 takes on the task of pressing off insoluble solids in the printing phase.
Weiterhin ist beschrieben, daß durch Zusatz von Festkörpern in Form von Fasern oder kleinen Kunststoffkugeln zum Lösungsmittel, wobei die Ware oder das Lösungsmittel bewegt werden kann, das Waschgut mechanisch gereinigt, d. h. abgewischt wird.It is also described that by adding solids in the form of fibers or small plastic balls to the solvent, whereby the goods or the solvent can be moved, the laundry mechanically cleaned, d. H. is wiped off.
Bei einem anderen Verfahren zum Entfetten und Reinigen von Gegenständen aus starrem Material werden letztere mit einer Emulsion aus Wasser und organischen wasserunlöslichen Fettlösungsmitteln unter Zusatz von Emulsionsmitteln behandelt. Dabei verwendet man zur Herstellung der nötigen Emulsionen zweckmäßig Zusätze bekannter Emulsionsmittel, wie fett- oder harzsaure Alkalien bzw. deren Derivate, ferner Netzmittel, wie sie z. B. in der Textilindustrie gebräuchlich sind. Die Herstellung der Emulsionen kann auch in der Weise erfolgen, daß man eine Komponente des Emulsionsmittels mit Wasser und einem Lösungsmittel, z.B. Trichloräthylen, mischt und dann die andere Komponente, z. B. Ätzoder kohlensaure Alkalien, zugibt.Another method of degreasing and Objects made of rigid material are cleaned with an emulsion of water and the latter treated with organic water-insoluble fat solvents with the addition of emulsifiers. Included it is advisable to use additives of known emulsifying agents to produce the necessary emulsions, such as fatty or resinous alkalis or their derivatives, also wetting agents, such as those used, for. B. in the textile industry are common. The emulsions can also be prepared in such a way that one component of the emulsifier with water and a solvent, e.g. trichlorethylene, mixes and then the other component, e.g. B. caustic or carbonic acid alkalis, adds.
Es wurde nun ein Verfahren zum Reinigen von Gegenständen aus starrem Material, insbesondere aus Metall, unter Verwendung von Chlorkohlenwasserstoffen gefunden, das einen absolut rückstände- und fleckenfreien Warenanfall bewirkt. Das Verfahren ist dadurch gekennzeichnet, daß die Gegenstände mit einem Gemisch behandelt werden, das neben Chlorkohlenwasserstoffen Wasser, Ammoniak bzw. Ammoniak entwickelnde Substanzen und Ölsäure enthält. Es ist überraschend, daß bei Verwendung einer Ammoniak enthaltenden Emulsion ein rückstandsloser und fleckenfreier Reinigungseffekt erzielt wird, e0 der bei Anwesenheit anderer Alkalien nicht erreicht wird.A method has now been found for cleaning objects made of rigid material, in particular made of metal, using chlorinated hydrocarbons, which produces an absolutely residue-free and stain-free amount of goods. The method is characterized in that the objects are treated with a mixture which, in addition to chlorinated hydrocarbons, contains water, ammonia or ammonia-evolving substances and oleic acid. It is surprising that when using an ammonia-containing emulsion is obtained a residue free and speck-free cleaning effect, e is 0 does not reach the other in the presence of alkalis.
Dabei hat sich als vorteilhaft erwiesen, wenn mit einem Gemisch gearbeitet wird, das auf 1 Teil Chlorkohlenwasserstoff etwa 1,5 bis 3,6 Teile Wasser, 0,025 bis 0,06 Teile wäßrige Ammoniaklösung und 0,02 bis 0,1 Teile Ölsäure enthält.It has been found to be advantageous if a mixture is used which is composed of 1 part of chlorinated hydrocarbon contains about 1.5 to 3.6 parts of water, 0.025 to 0.06 parts of aqueous ammonia solution and 0.02 to 0.1 parts of oleic acid.
Das Verfahren wird wie folgt durchgeführt:The procedure is carried out as follows:
Metallgegenstände, die nach der vorbeschriebenen Art verunreinigt sind, werden beispielsweise vor der Behandlung mit dem beanspruchten Gemisch einer Behandlung mit gegebenenfalls erwärmtem oder siedendem Chlorkohlenwasserstoff, beispielsweise Trichloräthylen oder Perchloräthylen unterzogen, wobei die löslichen Bestandteile, wie Öle und Fette, von dem Lösungsmittel aufgenommen werden. Diese Vorbehandlung hat sich im allgemeinen als zweckmäßig erwiesen, weil dadurch die Fettanteile entfernt werden und der eigentliche Reinigungsvorgang mittels des erfindungsgemäßen Gemisches verkürzt bzw. erleichtert wird. Gleichzeitig wird dadurch die Standzeit des Gemisches verlängert. Allerdings kann diese Arbeitsstufe bei Gegenständen, die nur eine geringe Fettschicht aufweisen, wegfallen.Metal objects that are contaminated as described above are, for example, before the Treatment with the claimed mixture of a treatment with optionally heated or boiling Chlorinated hydrocarbons, for example trichlorethylene or perchlorethylene, subjected the soluble components, such as oils and fats, are absorbed by the solvent. This pretreatment has generally proven to be useful because it removes the fat and the actual cleaning process is shortened or facilitated by means of the mixture according to the invention will. At the same time, this extends the service life of the mixture. However, this can No work step for objects that have only a small layer of fat.
Das gegebenenfalls vorbehandelte Reinigungsgut wird nun in einer zweiten Arbeitsstufe in das Gemisch getaucht. Dieser Vorgang erfolgt bei Zimmertemperatur. Es kann aber auch bei höheren Temperaturen, höchstens jedoch 50° C gearbeitet werden. Der Tauchvorgang erstreckt sich im allgemeinen auf etwa 1 bis 2 Minuten. Wird bei dieser Arbeitsstufe das zu reinigende Material bewegt, so kann der Reinigungsvorgang unterstützt und verkürzt werden.The items to be cleaned, which may have been pretreated, are then converted into the mixture in a second work stage submerged. This process takes place at room temperature. But it can also be used at higher temperatures, however no more than 50 ° C can be used. The immersion process generally extends to about 1 to 2 minutes. If the material to be cleaned is moved during this work stage, the cleaning process can supported and shortened.
Zur Entfernung der Reste, die aus dem Reinigungsgemisch stammen und die sich auf der Oberfläche des Reinigungsgutes nach dem Austauchen aus dem Bad befinden, werden eine oder mehrere Nachbehandlungen in flüssigem und dampfförmigem Chlorkohlenwasserstoff nachgeschaltet. In der flüssigen auf Siedetemperatur befindlichen Stufe tritt eine augenblickliche azeotrope Verdampfung des eingeschleppten Wasseranteiles ein und unterstützt den Abspüleffekt der auf dem Reinigungsgut noch verbliebenen Reste. Die so behandelte Ware ist nicht nur entölt bzw. entfettet, sondern gereinigt, so daß eine metallisch reine Oberfläche ohne Festkörperrückstände vorhanden ist.To remove the residues that come from the cleaning mixture and that are on the surface of the items to be cleaned are located after they have emerged from the bath, one or more subsequent treatments are required downstream in liquid and vaporous chlorinated hydrocarbons. In the liquid at boiling point At the current stage, there is instantaneous azeotropic evaporation of the imported Water content and supports the rinsing effect of the residues left on the items to be cleaned. The goods treated in this way are not only de-oiled or degreased, but cleaned, so that a metallic a clean surface with no solid residue.
Claims (4)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964W0037757 DE1298836B (en) | 1964-10-15 | 1964-10-15 | Process for cleaning objects made of rigid material |
DE1965W0038559 DE1302018B (en) | 1964-10-15 | 1965-02-15 | Process for cleaning objects made of rigid material |
CH1417365A CH460482A (en) | 1964-10-15 | 1965-10-14 | Process for cleaning objects made of rigid material |
ES0318468A ES318468A1 (en) | 1964-10-15 | 1965-10-14 | A procedure for cleaning objects of rigid material using chlorine hydrocarbons. (Machine-translation by Google Translate, not legally binding) |
GB4385265A GB1049220A (en) | 1964-10-15 | 1965-10-15 | Process for cleaning rigid articles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964W0037757 DE1298836B (en) | 1964-10-15 | 1964-10-15 | Process for cleaning objects made of rigid material |
DE1965W0038559 DE1302018B (en) | 1964-10-15 | 1965-02-15 | Process for cleaning objects made of rigid material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1298836B true DE1298836B (en) | 1969-07-03 |
Family
ID=26002700
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1964W0037757 Pending DE1298836B (en) | 1964-10-15 | 1964-10-15 | Process for cleaning objects made of rigid material |
DE1965W0038559 Pending DE1302018B (en) | 1964-10-15 | 1965-02-15 | Process for cleaning objects made of rigid material |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1965W0038559 Pending DE1302018B (en) | 1964-10-15 | 1965-02-15 | Process for cleaning objects made of rigid material |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH460482A (en) |
DE (2) | DE1298836B (en) |
ES (1) | ES318468A1 (en) |
GB (1) | GB1049220A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2797885A1 (en) * | 1999-08-30 | 2001-03-02 | Daniel Kondracki | Cleaning and degreasing bath for ferrous, cuprous and precious metal objects and mechanisms and some plastics includes isoamyl alcohol, acetone and oleic acid in ammoniated water |
EP1700642A2 (en) | 2005-03-11 | 2006-09-13 | Pero Aktiengesellschaft P. Erbel Maschinen- und Apparatebau | Process and device for cleaning and drying objects using an azeotrope mixture |
EP2108464A1 (en) | 2008-04-09 | 2009-10-14 | Dow Global Technologies Inc. | Process for cleaning articles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE608928C (en) * | 1933-10-21 | 1935-02-04 | Wacker Chemie Gmbh | Process for degreasing and cleaning objects made of rigid material |
US2208524A (en) * | 1936-01-06 | 1940-07-16 | Parker Rust Proof Co | Cleaning composition and process |
-
1964
- 1964-10-15 DE DE1964W0037757 patent/DE1298836B/en active Pending
-
1965
- 1965-02-15 DE DE1965W0038559 patent/DE1302018B/en active Pending
- 1965-10-14 CH CH1417365A patent/CH460482A/en unknown
- 1965-10-14 ES ES0318468A patent/ES318468A1/en not_active Expired
- 1965-10-15 GB GB4385265A patent/GB1049220A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE608928C (en) * | 1933-10-21 | 1935-02-04 | Wacker Chemie Gmbh | Process for degreasing and cleaning objects made of rigid material |
US2208524A (en) * | 1936-01-06 | 1940-07-16 | Parker Rust Proof Co | Cleaning composition and process |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2797885A1 (en) * | 1999-08-30 | 2001-03-02 | Daniel Kondracki | Cleaning and degreasing bath for ferrous, cuprous and precious metal objects and mechanisms and some plastics includes isoamyl alcohol, acetone and oleic acid in ammoniated water |
EP1700642A2 (en) | 2005-03-11 | 2006-09-13 | Pero Aktiengesellschaft P. Erbel Maschinen- und Apparatebau | Process and device for cleaning and drying objects using an azeotrope mixture |
DE102005011236B3 (en) * | 2005-03-11 | 2006-10-12 | Pero Ag P. Erbel Maschinen- U. Apparatebau | Process and device for cleaning and drying of items to be cleaned using azeotropic mixtures |
EP2108464A1 (en) | 2008-04-09 | 2009-10-14 | Dow Global Technologies Inc. | Process for cleaning articles |
Also Published As
Publication number | Publication date |
---|---|
DE1302018B (en) | 1969-09-25 |
GB1049220A (en) | 1966-11-23 |
CH460482A (en) | 1968-07-31 |
ES318468A1 (en) | 1966-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 |