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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D3/30—Amines; Substituted amines ; Quaternized amines
• • 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
  • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
  • C23G1/19—Iron or steel
• • 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
  • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions

Definitions

• the invention relates to new cleaning agents with which painted or unpainted surfaces of vehicles, engines, floors in workshops or other work surfaces can be cleaned and degreased, the corresponding contaminants removed being demulsified.
• the first-mentioned detergents containing components with an emulsifying effect have the major disadvantage that fats or grease-like contaminations can be removed from the surfaces to be cleaned, but these contaminations are emulsified in water. It is accepted that either larger amounts of oils, fats or other contaminants get into the wastewater, which is undesirable because of the associated environmental pollution, or additional means for breaking the emulsions formed must be added to separate the organic contaminants To enable oil separators. Apart from economic aspects, however, the subsequent addition of demulsifying agents is associated with further pollution of the water, so that this solution too cannot be satisfactory.
• DE-OS 25 29 096 discloses agents for the cold cleaning of solid surfaces contaminated with fats or fat-like impurities, which essentially consist in aqueous emulsions of ethoxylated phenols having 8 to 20 C atoms in the alkyl chain and ethoxylated aliphatic alcohols having 9 to 18 There are carbon atoms in the alkyl chain.
• the proposed cold cleaners are neutral to weakly alkaline and can be handled safely with good fat dissolving power due to their low or lack of alkalinity.
• DE-OS 29 01 927 detergents for removing oily impurities which contain fatty alcohol ethoxylates in combination with phenol or lower alkylphenol ethoxylates.
• fatty alcohol ethoxylates in combination with phenol or lower alkylphenol ethoxylates.
• the emulsions formed are relatively short-lived, but it takes hours to break them.
• the cleaning agents mentioned have such a consistency that they are perpendicular Surfaces, for example on walls or on the vertical outer surfaces of vehicles, run off immediately and a longer exposure time can only be achieved by adding an agent to increase the viscosity or by treating the surface several times with the cleaner. The surface is therefore not kept in contact with the cleaner for a sufficiently long time, so that repeated application is usually necessary.
• cleaners with a good cleaning action and demulsifying properties can be obtained which keep the surface to be cleaned in contact with the cleaning components for a sufficiently long time even without an agent to increase the viscosity, if aqueous combinations of builders or com plexers used with one or more alkanolamines and one or more nonionic surfactants.
• the demulsifying cleaning agents according to the invention may optionally additionally contain solubilizers in an amount of 1 to 10% by weight and / or corrosion inhibitors for light metals in an amount of 0.15 to 0.25% by weight and / or corrosion inhibitors for non-ferrous metals in an amount of Contain 0.2 to 0.4 wt .-% and / or fragrances and / or dyes in an amount of 0 to 1 wt .-%.
• Suitable builders / complexing agents are known compounds which complex alkali metal, alkaline earth metal and / or transition metal ions. Examples include ethylenediaminetetraacetic acid, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, N- (2-hydroxyethyl-) ethylenediaminetriacetic acid (Trilon R C) and their water-soluble alkali metal salts, preferably their sodium salts.
• the builders / complexing agents mentioned are preferably used in an amount of 2 to 4% by weight in the cleaners according to the invention.
• alkanolamines Another component of the cleaners according to the invention are alkanolamines.
• a compound of this class of substances or several such compounds can be used in any mixing ratio with one another.
• preferred alkanolamines are diethanolamine, triethanolamine, diisopropanolamine and triisopropanolamine.
• Compounds of this class of substances are preferably used in amounts of 25 to 50% by weight.
• the use of the alkanolamine component in an amount below 20% by weight is critical: amounts below 20% by weight, based on the invention aqueous cleaner concentrate would significantly worsen the desired "moisturizing effect".
• the demulsifying cleaning agents according to the invention contain nonionic surfactants as a further component.
• nonionic surfactants as a further component.
• a single representative of this group of substances or alternatively a mixture of two or more nonionic surfactants can be used, as long as the amount is in the range from 1 to 15% by weight.
• Representatives of this class of substances are adducts of 4 mol of ethylene oxide with n- or i-octanol and adducts of 2 mol of propylene oxide and 5 to 6 mol of ethylene oxide with the C8-alcohols mentioned.
• the preferred amount of the nonionic surfactants used is in the range of 3 to 6% by weight.
• Aromatic sulfonates such as cumene sulfonate or butyl glycol sulfonate, are suitable as solubilizers, which can optionally be additionally added to the demulsifying cleaning agents consisting of the above-mentioned components (a), (b), (c) and (d).
• corrosion inhibitors for light metals such as phosphoric acid and / or corrosion inhibitors for non-ferrous metals such as tolyltriazole can optionally be added.
• the demulsifying cleaning agents according to the invention can also contain fragrances and / or dyes.
• the cleaners are produced in that the components mentioned are mixed with one another in the respective amounts by methods known per se. Storage or shipping is generally carried out in the form of an aqueous concentrate containing the combination of the specified raw materials, to which the stated amounts (in% by weight) also relate.
• the demulsifying cleaning agents according to the invention with a moisturizing effect are used in any dilution with water.
• 3% or more concentrated aqueous solutions are used.
• the concentrate can even be used.
• the application takes place in the spray, immersion or high pressure spraying process with the appropriate devices. It starts at room temperature excellent cleaning result achieved.
• the product composition also ensures that the surface to be cleaned is kept moist for approx. 20 to 30 minutes and thus a correspondingly long contact of the cleaning components with the contamination. This is extremely important, for example, when cleaning locomotives to achieve a good cleaning result.
• the demulsifying effect is a decisive advantage compared to conventional products. If, for example, an application solution according to the invention is diluted from 10 to 50% concentration with rinsing water to a concentration of less than or equal to 2% at room temperature, mineral oil additionally introduced separates itself practically completely from the solution when it is at rest for 30 minutes. With appropriate waste water collection tanks, the oil content of waste water can be reduced to less than 50 mg simply by such mechanical oil separation. 1 ⁇ 1 to be lowered.
• iron (II) sulfate or aluminum sulfate to the wastewater to further reduce the oil content and thereby achieve a flocculation of the contaminants.
• This additional cleaning step known from the prior art, allows the residual oil content in the waste water to be below 10 mg. 1 ⁇ 1 to be lowered.
• Comparative cleaner concentrate: 5% by weight of a condensation product of nonylphenol with 5 mol of EO, 2% by weight sodium cumene sulfonate, 5% by weight of ethylene glycol monobutyl ether, 1% by weight sodium hydroxide solution and 87 wt% water.
• the comparative cleaner therefore contained a strongly emulsifying surfactant.
• the cleaning effect of the agents according to the invention was significantly higher than that of the comparative cleaner.
• a time factor of 0.7 was achieved in favor of the agents according to the invention, ie that the agents according to the invention brought about the required complete degreasing in a significantly shorter time, based on the comparative cleaner.
• the cleaners (a) and (b) mentioned in Example 1 were diluted with water in a volume ratio of 1:10.
• a steel sheet coated with polyurethane lacquer (50 mm ⁇ 100 mm ⁇ 1 mm) was immersed in the corresponding solution, removed after a few minutes and suspended vertically. After 25 minutes there was still a finger-wipe liquid film on the treated paint surfaces.
• the product film remaining on the cleaned parts after the treatment offers not only moisture retention but also the necessary temporary corrosion protection. This is particularly important when cleaning the engine compartment.
• the storage corrosion protection test was carried out according to the so-called "plate climate test”. Steel sheets of quality ST 1405 were cleaned with trichlorethylene and then immersed in 10% solutions of the cleaners according to the invention. After 5 minutes the sheets were removed and dried at room temperature. The sheets were stored in a climate box at 23 ° C and 100% relative humidity. Sheets treated in this way showed no signs of corrosion even after 14 days.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Metallurgy (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• General Chemical & Material Sciences (AREA)
• Detergent Compositions (AREA)
• Medicines Containing Material From Animals Or Micro-Organisms (AREA)
• Ultra Sonic Daignosis Equipment (AREA)
• Catalysts (AREA)
• Filters For Electric Vacuum Cleaners (AREA)
• Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
• Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
• Manufacturing Of Printed Wiring (AREA)
• Table Devices Or Equipment (AREA)
• Cleaning By Liquid Or Steam (AREA)
• Treatments Of Macromolecular Shaped Articles (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

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ID=6279492

Family Applications (1)

Country Status (15)

Cited By (10)

Families Citing this family (13)

Citations (6)

Family Cites Families (7)

• 1985
  • 1985-08-28 DE DE19853530623 patent/DE3530623A1/de not_active Withdrawn
• 1986
  • 1986-07-21 CA CA000514258A patent/CA1282666C/fr not_active Expired - Fee Related
  • 1986-07-28 TR TR86/0414A patent/TR24410A/xx unknown
  • 1986-08-19 DK DK394386A patent/DK164707C/da not_active IP Right Cessation
  • 1986-08-20 AT AT86111550T patent/ATE57955T1/de not_active IP Right Cessation
  • 1986-08-20 GR GR862167A patent/GR862167B/el unknown
  • 1986-08-20 DE DE8686111550T patent/DE3675294D1/de not_active Expired - Fee Related
  • 1986-08-20 EP EP86111550A patent/EP0213554B1/fr not_active Expired - Lifetime
  • 1986-08-25 PT PT83245A patent/PT83245B/pt not_active IP Right Cessation
  • 1986-08-27 AU AU61887/86A patent/AU581779B2/en not_active Ceased
  • 1986-08-27 ZA ZA866512A patent/ZA866512B/xx unknown
  • 1986-08-27 ES ES8601419A patent/ES2001605A6/es not_active Expired
  • 1986-08-27 FI FI863476A patent/FI82946C/fi not_active IP Right Cessation
  • 1986-08-27 NO NO863445A patent/NO166590C/no unknown
  • 1986-08-28 JP JP61203541A patent/JP2523111B2/ja not_active Expired - Lifetime
• 1987
  • 1987-12-14 US US07/133,182 patent/US4784798A/en not_active Expired - Fee Related

Patent Citations (7)

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