EP0213554A2 - Demulsifying cleaning agent retaining superficial humidity - Google Patents
Demulsifying cleaning agent retaining superficial humidity Download PDFInfo
- Publication number
- EP0213554A2 EP0213554A2 EP86111550A EP86111550A EP0213554A2 EP 0213554 A2 EP0213554 A2 EP 0213554A2 EP 86111550 A EP86111550 A EP 86111550A EP 86111550 A EP86111550 A EP 86111550A EP 0213554 A2 EP0213554 A2 EP 0213554A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- amount
- weight
- cleaning agent
- cleaning
- mol
- 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.)
- Granted
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- 239000012459 cleaning agent Substances 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 9
- 239000008139 complexing agent Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract 3
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 9
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- -1 ferrous metals Chemical class 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
- 230000003020 moisturizing effect Effects 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003599 detergent Substances 0.000 claims description 6
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 5
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 4
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 239000007859 condensation product Substances 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 claims description 3
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 claims description 2
- JBVOQKNLGSOPNZ-UHFFFAOYSA-N 2-propan-2-ylbenzenesulfonic acid Chemical compound CC(C)C1=CC=CC=C1S(O)(=O)=O JBVOQKNLGSOPNZ-UHFFFAOYSA-N 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229940071118 cumenesulfonate Drugs 0.000 claims description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043276 diisopropanolamine Drugs 0.000 claims description 2
- 229960003330 pentetic acid Drugs 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005238 degreasing Methods 0.000 abstract description 4
- 238000009736 wetting Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 9
- 239000003925 fat Substances 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 229940079842 sodium cumenesulfonate Drugs 0.000 description 2
- QEKATQBVVAZOAY-UHFFFAOYSA-M sodium;4-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=C(S([O-])(=O)=O)C=C1 QEKATQBVVAZOAY-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 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
- 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.
Landscapes
- 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)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Catalysts (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)
Abstract
Description
Die Erfindung betrifft neue Reinigungsmittel, mit denen lackierte oder nichtlackierte Oberflächen von Fahrzeugen, Motoren, Fußböden in Werkstätten oder andere Arbeitsflächen gereinigt und entfettet werden können, wobei die entsprechenden entfernten Verunreinigungen demulgiert werden.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.
Mittel zur Reinigung von festen Oberflächen, die mit Fetten oder fettartigen Verschmutzungen verunreinigt sind, sind insbesondere im technischen Bereich weit verbreitet. Bisher werden für die entsprechenden Reinigungsoperationen entweder Zusammensetzungen verwendet, die Fette oder fettartige Verschmutzungen emulgieren, oder sogenannte "Kaltreiniger" eingesetzt. Letztere sind (nach Römpp's Chemie-Lexikon, Franck'sche Verlagsbuchhandlung Stuttgart, Band 3 (1983), Seite 2033/34) Lösungsmittelgemische, die hohe Anteile chlorierter oder nichtchlorierter Kohlenwasserstoffe (Erdölfraktionen) enthalten und mit oder ohne Emulgatoren und anderen Zusätzen zur Kaltentfernung von Fetten, Ölen, Wachsen, Teer usw. verwendet werden. Bei Verwendung derartiger Kaltreiniger werden die Abwässer nicht nur mit den von den behandelten Oberflächen abgelösten Fetten, Ölen etc. belastet, sondern zusätzlich auch mit organischen Lösungsmitteln, insbesondere mit chlorierten Kohlenwasserstoffen, so daß eine Abtrennung der umweltschädlichen Komponenten von den entsprechenden Abwässern zwingend erforderlich, da gesetzlich vorgeschrieben, ist. Zudem haben organische Lösungsmittel enthaltende Kaltreiniger den weiteren Nachteil, daß bei der Reinigungsoperation feuergefährliche, geruchsbelästigende oder sogar gesundheitsschädliche Dämpfe entstehen, so daß die entsprechenden Reinigungsoperationen nur unter extremen Vorsichts- und Gesundheitsschutzmaßnahmen durchgeführt werden können.Means for cleaning solid surfaces that are contaminated with greases or greasy soiling are particularly widespread in the technical field. So far, either compositions that emulsify fats or greasy soiling, or so-called "cold cleaners" have been used for the corresponding cleaning operations. The latter are (according to Römpp's Chemie-Lexikon, Franck'sche Verlagsbuchhandlung Stuttgart, Volume 3 (1983), page 2033/34) solvent mixtures that contain high proportions of chlorinated or non-chlorinated hydrocarbons (petroleum fractions) and with or without emulsifiers and other additives for cold removal of fats, oils, waxes, tar, etc. When using such cold cleaners, the wastewater is not only contaminated with the fats, oils etc. detached from the treated surfaces, but also with organic solvents, especially with chlorinated hydrocarbons, so that it is absolutely necessary to separate the environmentally harmful components from the corresponding wastewater, because is required by law. In addition, cold cleaners containing organic solvents have the further disadvantage that flammable, unpleasant odors or even harmful vapors are produced during the cleaning operation, so that the corresponding cleaning operations can only be carried out under extreme precautionary and health protection measures.
Die erstgenannten, emulgierend wirkende Komponenten enthaltenden Reinigungsmittel haben den wesentlichen Nachteil, daß zwar Fette oder fettartige Verschmutzungen von den zu reinigenden Oberflächen entfernt werden können, diese Verschmutzungen jedoch im Wasser emulgiert werden. Dabei wird in Kauf genommen, daß entweder größere Mengen von Ölen, Fetten oder anderen Verunreinigungen in das Abwasser gelangen, was wegen der damit verbundenen Umweltverschmutzung unerwünscht ist, oder zusätzliche Mittel zum Brechen der gebildeten Emulsionen zugesetzt werden müssen, um eine Abtrennung der organischen Verunreinigungen in Ölabscheidern zu ermöglichen. Abgesehen von ökonomischen Aspekten ist jedoch der nachträgliche Zusatz demulgierender Agenzien mit einer weiteren Gewässerbelastung verbunden, so daß auch diese Lösung nicht befriedigen kann.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.
In der DE-OS 25 29 096 werden Mittel zur Kaltreinigung von mit Fetten oder fettartigen Verunreinigungen kontaminierten festen Oberflächen offenbart, die im wesentlichen in wässrigen Emulsionen aus ethoxylierten Phenolen mit 8 bis 20 C-Atomen in der Alkylkette und ethoxylierten aliphatischen Alkoholen mit 9 bis 18 C-Atomen in der Alkylkette bestehen. Die vorgeschlagenen Kaltreiniger sind neutral bis schwach alkalisch eingestellt und können bei gutem Fettlösevermögen aufgrund ihrer geringen bzw. fehlenden Alkalität gefahrlos gehandhabt werden.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.
Ferner werden in der DE-OS 29 01 927 Reinigungsmittel zur Entfernung von öligen Verunreinigungn vorgeschlagen, die Fettalkoholethoxylate in Kombination mit Phenol- oder Niederalkylphenolethoxylaten enthalten. Bei der Reinigungsoperation werden die fett- oder ölhaltigen Verunreinigungen in Form einer Emulsion von der zu reinigenden Oberfläche entfernt. Die gebildeten Emulsionen sind zwar relativ kurzlebig, es werden jedoch Stunden bis zum Brechen derselben benötigt.Furthermore, DE-OS 29 01 927 detergents for removing oily impurities are proposed which contain fatty alcohol ethoxylates in combination with phenol or lower alkylphenol ethoxylates. During the cleaning operation, the greasy or oily contaminants are removed from the surface to be cleaned in the form of an emulsion. The emulsions formed are relatively short-lived, but it takes hours to break them.
Zusätzlich zu den oben genannten Nachteilen, die den meisten aus dem Stand der Technik bekannten Reinigungsmitteln zueigen sind, haben die genannten Reiniger eine solche Konsistenz, daß sie auf senkrechten Flächen, beispielsweise auf Wänden oder auf den senkrechten Außenflächen von Fahrzeugen, unmittelbar ablaufen und eine längere Einwirkzeit nur dadurch erreicht werden kann, daß ein Mittel zur Viskositätserhöhung zugesetzt oder die Fläche mehrfach mit dem Reiniger behandelt werden muß. Die Fläche wird also nicht für eine genügend lange Zeit mit dem Reiniger in Kontakt gehalten, so daß in der Regel eine wiederholte Applikation erforderlich ist.In addition to the disadvantages mentioned above, which are common to most cleaning agents known from the prior art, 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.
Aufabe der vorliegenden Erfindung war es, alternativ zu den aus dem Stand der Technik bekannten Mitteln solche Reiniger zur Verfügung zu stellen, die ohne Belastung der Umwelt eingesetzt werden können. Insbesondere sollte eine Emulsionsbildung vermieden und auf die Verwendung von organischen Lösungsmitteln, beispielsweise Chlorkohlenwasserstoffen, Estern und Fraktionen der Mineralöldestillation (Benzin, Kohlenwasserstoffe), vollständig verzichtet werden. Die Applikation der neuen Reiniger sollte auf jedem Wege möglich sein und dabei zu einer über längere Zeit anhaltenden Benetzung der behandelten Oberfläche führen. Eine Reinigungswirkung sollte zudem schon bei Raumtemperatur gegeben sein. Außerdem wurden an die biologische Abbaubarkeit über das gesetzlich vorgeschriebene Maß hinaus (Waschmittelgesetz, Chemikaliengesetz) erhöhte Anforderungen gestellt.It was an object of the present invention, as an alternative to the agents known from the prior art, to provide those cleaners which can be used without polluting the environment. In particular, emulsion formation should be avoided and the use of organic solvents, for example chlorinated hydrocarbons, esters and fractions from mineral oil distillation (petrol, hydrocarbons), should be avoided entirely. The application of the new cleaners should be possible in every way and lead to a lasting wetting of the treated surface. A cleaning effect should also be given at room temperature. In addition, increased demands were placed on the biodegradability beyond the legally prescribed level (detergent law, chemical law).
Überraschend wurde nun gefunden, daß Reiniger mit guter Reinigungswirkung und demulgierenden Eigenschaften erhalten werden können, die die zu reinigende Fläche auch ohne Mittel zur Viskositätserhöhung ausreichend lange mit den Reinigerkomponenten in Kontakt halten, wenn man wässrige Kombinationen von Buildern bzw. Kom plexbildnern mit einem oder mehreren Alkanolaminen und einem oder mehreren nichtionischen Tensiden verwendet.Surprisingly, it has now been found that 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.
Die Erfindung betrifft somit demulgierende Reinigungsmittel mit Flächenfeuchthalteeffekt, die folgende Komponenten enthalten:
- (a) Builder/Komplexbildner in einer Menge von 0,5 bis 10 Gew.-%,
- (b) ein oder mehrere Alkanolamin(e) in einer Menge von 20 bis 60 Gew.-%,
- (c) ein oder mehrere nichtionische(s) Tensid(e) in einer Menge von 1 bis 15 Gew.-% sowie
- (d) Wasser in einer Menge, die sich mit den Komponenten (a) (b) und (c) zu 100 Gew.-% summiert.
- (a) builders / complexing agents in an amount of 0.5 to 10% by weight,
- (b) one or more alkanolamine (s) in an amount of 20 to 60% by weight,
- (c) one or more nonionic surfactant (s) in an amount of 1 to 15 wt .-% as well
- (d) Water in an amount which adds up to 100% by weight with components (a) (b) and (c).
Die erfindungsgemäßen demulgierenden Reinigungsmittel können gegebenenfalls zusätzlich Lösungsvermittler in einer Menge von 1 bis 10 Gew.-% und/oder Korrosionsinhibitoren für Leichtmetalle in einer Menge von 0,15 bis 0,25 Gew.-% und/oder Korrosionsinhibitoren für Buntmetalle in einer Menge von 0,2 bis 0,4 Gew.-% und/oder Duftstoffe und/oder Farbstoffe in einer Menge von 0 bis 1 Gew.-% enthalten.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 .-%.
Als Builder/Komplexbildner kommen an sich bekannte, Alkalimetall-, Erdalkalimetall- und/oder Übergangsmetallionen komplexierende Verbindungen in Frage. Als solche sind beispielsweise Ethylendiamintetraessigsäure, Nitrilotriessigsäure, Diethylentriaminpentaessigsäure, N-(2-Hydroxyethyl-)ethylendiamintriessigsäure (TrilonR C) und deren wasserlösliche Alkalimetallsalze, bevorzugt deren Natriumsalze, zu nennen. Die genannten Builder/Komplexbildner werden bevorzugt in einer Menge von 2 bis 4 Gew.-% in den erfindungsgemäßen Reinigern eingesetzt.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.
Eine weitere Komponente der erfindungsgemäßen Reiniger sind Alkanolamine. Alternativ kann entweder eine Verbindung dieser Stoffklasse oder mehrere derartige Verbindungen in beliebigem Mischungsverhältnis miteinander eingesetzt werden. Als Beispiele bevorzugter Alkanolamine sind Diethanolamin, Triethanolamin, Diisopropanolamin und Triisopropanolamin zu nennen. Verbindungen dieser Stoffklasse werden bevorzugt in Mengen von 25 bis 50 Gew.-% eingesetzt.Another component of the cleaners according to the invention are alkanolamines. Alternatively, either a compound of this class of substances or several such compounds can be used in any mixing ratio with one another. Examples of 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.
Für das Erreichen des erfindungsgemäß angestrebten Effektes der "Feuchthaltung" der behandelten Oberfläche, d.h. das Ermöglichen eines über einen unmittelbaren Ablauf des angewendeten Mittels hinaus andauernden Kontaktes der Reinigerkomponenten mit der behandelten Oberfläche, ist die Verwendung der Alkanolaminkomponente in einer Menge unterhalb von 20 Gew.-% kritisch: Mengen unterhalb von 20 Gew.-%, bezogen auf das erfindungsgemäße wässrige Reinigerkonzentrat, würden den angestrebten "Feuchthalteeffekt" deutlich verschlechtern.To achieve the "moisturizing" effect of the treated surface, i.e. In order to allow the detergent components to come into contact with the treated surface beyond the immediate expiry of the agent used, 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".
Als weitere Komponente enthalten die erfindungsgemäßen demulgierenden Reinigungsmittel nichtionische Tenside. Auch in diesem Fall kann ein einziger Vertreter dieser Stoffgruppe oder alternativ ein Gemisch zweier oder mehrerer nichtionischer Tenside eingesetzt werden, solange dabei die Menge im Bereich von 1 bis 15 Gew.-% liegt. Als Vertreter dieser Stoffklasse sind Addukte von 4 mol Ethylenoxid an n- oder i-Octanol sowie Addukte von 2 mol Propylenoxid und 5 bis 6 mol Ethylenoxid an die genannten C₈-Alkohole zu nennen. Die bevorzugte Menge der verwendeten nichtionischen Tenside liegt im Bereich von 3 bis 6 Gew.-%.The demulsifying cleaning agents according to the invention contain nonionic surfactants as a further component. In this case too, 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.
Als Lösungsvermittler, die den aus den oben genannten Komponenten (a), (b), (c) und (d) bestehenden demulgierenden Reinigungsmitteln gegebenenfalls zusätzlich beigegeben werden können, kommen aromatische Sulfonate, wie Cumolsulfonat oder Butylglykolsulfonat in Frage. Außerdem können gegebenenfalls Korrosionsinhibitoren für Leichtmetalle wie beispielsweise Phosphorsäure und/oder Korrosionsinhibitoren für Buntmetalle, beispielsweise Tolyltriazol, zugesetzt werden. Falls dies erwünscht ist, können die demulgierenden Reinigungsmittel gemäß der Erfindung auch Duftstoffe und/oder Farbstoffe enthalten.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). In addition, corrosion inhibitors for light metals such as phosphoric acid and / or corrosion inhibitors for non-ferrous metals such as tolyltriazole can optionally be added. If this is desired, the demulsifying cleaning agents according to the invention can also contain fragrances and / or dyes.
Die Reiniger werden dadurch hergestellt, daß die genannten Komponenten in den jeweiligen Mengen nach an sich bekannten Methoden miteinander vermischt werden. Die Lagerung bzw. der Versand erfolgt in der Regel in Form eines die Kombination der angegebenen Rohstoffe enthaltenden wässrigen Konzentrates, auf das sich auch die angegebenen Mengen (in Gew.-%) beziehen.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.
Zur Reinigung und Entfettung von lackierten oder unlackierten Oberflächen von Fahrzeugen, Motoren, Fußboden und Wänden von Werkstätten etc. werden die erfindungsgemäßen demulgierenden Reinigungsmittel mit Feuchthalteeffekt in beliebiger Verdünnung mit Wasser eingesetzt. Je nach Applikationsart und Verschmut zungsgrad der zu reinigenden Flächen werden 3 %ige oder höher konzentrierte wässrige Lösungen eingesetzt. Bei hoher Verschmutzung kann sogar das Konzentrat verwendet werden. Die Applikation erfolgt im Sprüh-, Tauch- oder Hochdruckspritzverfahren mit entsprechenden Geräten. Bereits bei Raumtemperatur wird ein her vorragendes Reinigungsergebnis erzielt. Die Produktzusammensetzung gewährleistet außerdem eine ca. 20-bis 30-minütige Feuchthaltung der zu reinigenden Oberfläche und damit einen entsprechend langen Kontakt der reinigend wirkenden Komponenten mit der Kontamination. Dies ist beispielsweise bei der Reinigung von Lokomotiven zur Erzielung eines guten Reinigungsergebnisses von außerordentlicher Wichtigkeit.For cleaning and degreasing painted or unpainted surfaces of vehicles, engines, floors and walls of workshops etc., the demulsifying cleaning agents according to the invention with a moisturizing effect are used in any dilution with water. Depending on the type of application and the degree of soiling of the surfaces to be cleaned, 3% or more concentrated aqueous solutions are used. In the case of heavy soiling, 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.
Abgesehen von dem oben genannten Feuchthalteeffekt ist gegenüber den herkömmlichen Produkten die demulgierende Wirkung von entscheidendem Vorteil. Wird beispielsweise bei Raumtemperatur eine erfindungsgemäße Anwendungslösung von 10 bis 50 %iger Konzentration mit Spülwässern auf eine Konzentration kleiner/gleich 2 % verdünnt, so scheidet sich zusätzlich eingebrachtes Mineralöl von der Lösung selbsttätig praktisch vollständig ab, wenn diese 30 Minuten ruht. Mit entsprechenden Abwasser-Sammelbehältern kann allein durch eine derartige mechanische Ölabscheidung der Ölgehalt von Abwasser auf weniger als 50 mg . 1⁻¹ gesenkt werden.Apart from the above-mentioned moisturizing effect, 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.
Gegebenenfalls ist es möglich, zur weiteren Senkung des Ölgehaltes das Abwasser mit Eisen(II)sulfat oder Aluminiumsulfat zu versetzen und dadurch eine Ausflockung der Verunreinigungen zu erzielen. Durch diesen, aus dem Stand der Technik bekannten, zusätzlichen Reinigungsschritt kann der Restölgehalt im Abwasser auf einen Wert unter 10 mg . 1⁻¹ gesenkt werden.If necessary, it is possible to add 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.
Die Erfindung wird durch die nachstehenden Beispiele näher erläutert.The invention is illustrated by the examples below.
Entfettete Stahlbleche (50 mm × 100 mm × 1 mm) wurden in eine Mischung von Heißdampfzylinderöl und ASTM III-Öl im Volumenverhältnis 1 : 1 eingetaucht, nach 10 min entnommen und 4 h senkrecht aufgehängt. Die so vorbehandelten Testbleche wurden dann in 50 %ige Reinigerlösung der nachfolgenden Zusammensetzung getaucht und die Zeit bis zur vollständigen Entfettung (visuelle Beurteilung) wurde gemessen.
- (a) Reiniger gemäß der Erfindung (Konzentrat):
7 Gew.-% Nitrilotriacetat-Trinatriumsalz (Trilon AR, 38 %ig),
9,5 Gew.-% Diethanolamin,
18,0 Gew.-% Triethanolamin,
6,0 Gew. % eines Kondensationsproduktes von n-Octanol an 4 mol EO,
5,0 Gew.-% Natriumcumolsulfonat, 40 %ig und 54,5 Gew.-% Wasser. - (b) Reiniger gemäß der Erfindung (Konzentrat):
4,0 Gew.-% Ethylendiamintetraacetat-Natriumsalz (Trilon BR,
30,0 Gew.-% Triethanolamin,
15,0 Gew.-% Diethanolamin,
7,0 Gew.-% eines Kondensationsproduktes von i-Octanol an 2 mol Propylenoxid und 5 bis 6 mol Ethylenoxid,
3,0 Gew.-% Natriumbutylglykolsulfonat,
0,2 Gew.-% Phosphorsäure,
0,2 Gew.-% Tolyltriazol und
40,6 Gew.-% Wasser.
- (a) Cleaner according to the invention (concentrate):
7% by weight of nitrilotriacetate trisodium salt (Trilon A R , 38%),
9.5% by weight diethanolamine,
18.0% by weight of triethanolamine,
6.0% by weight of a condensation product of n-octanol with 4 mol of EO,
5.0% by weight sodium cumene sulfonate, 40% and 54.5% by weight water. - (b) Cleaner according to the invention (concentrate):
4.0% by weight of ethylenediaminetetraacetate sodium salt (Trilon B R ,
30.0% by weight of triethanolamine,
15.0% by weight of diethanolamine,
7.0% by weight of a condensation product of i-octanol with 2 mol of propylene oxide and 5 to 6 mol of ethylene oxide,
3.0% by weight of sodium butyl glycol sulfonate,
0.2% by weight phosphoric acid,
0.2% by weight of tolyltriazole and
40.6% by weight water.
Vergleichsreiniger (Konzentrat):
5 Gew.-% eines Kondensationsproduktes von Nonylphenol an 5 mol EO,
2 Gew.-% Natriumcumolsulfonat,
5 Gew.-% Ethylenglykolmonobutylether,
1 Gew.-% Natronlauge und
87 Gew.-% Wasser.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.
Der Vergleichsreiniger enthielt also ein stark emulgierend wirkendes Tensid.The comparative cleaner therefore contained a strongly emulsifying surfactant.
Ergebnis:
Die Reinigungswirkung der erfindungsgemäßen Mittel lag deutlich höher als die des Vergleichsreinigers. Es wurde ein Zeitfaktor von 0,7 zugunsten der erfindungsgemäßen Mittel erzielt, d.h., daß die erfindungsgemäßen Mittel in einer deutlich kürzeren Zeit, bezogen auf den Vergleichsreiniger, die geforderte vollständige Entfettung bewirkten.Result:
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.
Zur Erzielung eines optimalen Reinigungsergebnisses, insbesondere bei der Außenreinigung von Fahrzeugen, ist eine Feuchthaltung über einen gewissen Zeitraum zwingend erforderlich. Die in Beispiel 1 genannten Reiniger (a) und (b) wurden im Volumenverhältnis l : 10 mit Wasser verdünnt. Ein mit Polyurethanlack beschichtetes Stahlblech (50 mm × 100 mm × 1 mm) wurde in die entsprechende Lösung eingetaucht, nach einigen Minuten entnommen und senkrecht aufgehängt. Nach 25 min war auf den behandelten Lackflächen noch ein mit dem Finger wischbarer Flüssigkeitsfilm vorhanden.To achieve an optimal cleaning result, especially when cleaning the exterior of vehicles, it is imperative to keep it moist for a certain period of time. 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.
Die nachfolgend angegebenen Komponenten wurden in einem 2 1-Becherglas gemischt und 10 min mit einem Flügelrührer (16/15 mm) auf halber Flüssigkeitshöhe mit einer Rührgeschwindigkeit von 800 U . min⁻¹ gerührt:
1620 ml Wasser,
20 ml Reinigerkonzentrat (vgl. Beispiel 1(a) (b)) und
2 ml einer Mischung von Heißdampfzylinderöl und ASTM III-Öl im Volumenverhältnis 1 : 1.The components listed below were mixed in a 2 1 beaker and mixed for 10 min with a paddle stirrer (16/15 mm) at half the liquid level with a stirring speed of 800 rev. min⁻¹ stirred:
1620 ml water,
20 ml cleaner concentrate (see. Example 1 (a) (b)) and
2 ml of a mixture of superheated steam cylinder oil and ASTM III oil in a volume ratio of 1: 1.
Nach Ablauf von 10 min wurde der Ansatz in einen 2 1-Scheidetrichter umgefüllt und 30 min ruhen gelassen. Nach 30 min wurde eine Flüssigkeitsprobe von 500 ml aus dem Scheidetrichter abgelassen. Diese Wasserprobe enthielt nur noch geringe Mengen an Restöl (kleiner 50 mg . l⁻¹.After 10 minutes had elapsed, the batch was transferred to a 2 1 separating funnel and left to stand for 30 minutes. After 30 minutes a 500 ml liquid sample was drained from the separatory funnel. This water sample contained only small amounts of residual oil (less than 50 mg. L⁻¹.
Zu einer weiteren Probe von 500 ml der aus dem Scheidetrichter abgelassenen Lösung wurden 0,75 g wasserfreies Aluminiumsulfat zugegeben und der pH-Wert mit 1 n-Natronlauge auf 7,3 eingestellt. Danach wurde die Lösung 30 min ruhen gelassen. Der dabei gebildete flockige Niederschlag wurde mit Hilfe eines Filters (NN 651 1/4) abfiltriert. Der Restölgehalt des Filtrates betrug weniger als 10 mg . 1⁻¹.0.75 g of anhydrous aluminum sulfate was added to a further sample of 500 ml of the solution drained from the separating funnel, and the pH was adjusted to 7.3 with 1N sodium hydroxide solution. The solution was then left to stand for 30 minutes. The flaky precipitate formed was filtered off using a filter (NN 651 1/4). The residual oil content of the filtrate was less than 10 mg. 1⁻¹.
Der auf den gereinigten Teilen nach der Behandlung verbleibende Produktfilm bietet neben der Feuchthaltung - außerdem einen notwendigen temporären Korrosionsschutz. Dies ist insbesondere bei der Reinigung des Motorenraumes von Bedeutung.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.
Die Prüfung bezüglich des Lagerungs-Korrosionsschutzes erfolgte gemäß des sogenanten "Platten-Klimatests". Es wurden Stahlbleche der Qualität ST 1405 mit Trichlorethylen gereinigt und anschließend in 10 %ige Lösungen der erfindungsgemäßen Reiniger getaucht. Nach 5 min wurden die Bleche entnommen und bei Raumtemperatur getrocknet. Die Lagerung der Bleche erfolgte in einer Klimabox bei 23°C und 100 % relativer Luftfeuchtigkeit. Derartig behandelte Bleche zeigten auch nach 14 Tagen noch keine Korrosionserscheinungen.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.
Bei Zusatz von 0,15 bis 0,25 Gew.-% Phosphorsäure zum Produktkonzentrat und/oder 0,2 bis 0,4 Gew.-% Tolyltriazol zum Produktkonzentrat wurde auch ein vollständiger Korrosionsschutz von Leichtmetalloberflächen, wie beispielsweise Oberflächen aus Aluminium oder Magnesium, oder von Buntmetalloberflächen erreicht.When 0.15 to 0.25% by weight of phosphoric acid was added to the product concentrate and / or 0.2 to 0.4% by weight of tolyltriazole to the product concentrate, complete corrosion protection of light metal surfaces, such as surfaces made of aluminum or magnesium, was also achieved. or achieved by non-ferrous metal surfaces.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86111550T ATE57955T1 (en) | 1985-08-28 | 1986-08-20 | DEMULSIFYING DETERGENT WITH SURFACE MOISTURIZING EFFECT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3530623 | 1985-08-28 | ||
DE19853530623 DE3530623A1 (en) | 1985-08-28 | 1985-08-28 | Demulsifying detergent with surface moisturizing effect |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0213554A2 true EP0213554A2 (en) | 1987-03-11 |
EP0213554A3 EP0213554A3 (en) | 1988-09-14 |
EP0213554B1 EP0213554B1 (en) | 1990-10-31 |
Family
ID=6279492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86111550A Expired - Lifetime EP0213554B1 (en) | 1985-08-28 | 1986-08-20 | Demulsifying cleaning agent retaining superficial humidity |
Country Status (15)
Country | Link |
---|---|
US (1) | US4784798A (en) |
EP (1) | EP0213554B1 (en) |
JP (1) | JP2523111B2 (en) |
AT (1) | ATE57955T1 (en) |
AU (1) | AU581779B2 (en) |
CA (1) | CA1282666C (en) |
DE (2) | DE3530623A1 (en) |
DK (1) | DK164707C (en) |
ES (1) | ES2001605A6 (en) |
FI (1) | FI82946C (en) |
GR (1) | GR862167B (en) |
NO (1) | NO166590C (en) |
PT (1) | PT83245B (en) |
TR (1) | TR24410A (en) |
ZA (1) | ZA866512B (en) |
Cited By (10)
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WO1991010718A1 (en) * | 1990-01-20 | 1991-07-25 | Henkel Kommanditgesellschaft Auf Aktien | Anti-froth cleaning agents and use thereof |
WO1992016607A1 (en) * | 1991-03-12 | 1992-10-01 | Alfred Kärcher GmbH & Co. | Demulsifying cleaning agent |
EP0616028A1 (en) * | 1993-03-19 | 1994-09-21 | The Procter & Gamble Company | Cleaning compositions with short chain nonionic surfactants |
EP0616027A1 (en) * | 1993-03-19 | 1994-09-21 | The Procter & Gamble Company | Concentrated cleaning compositions |
TR26594A (en) * | 1991-12-07 | 1995-03-15 | Hoechst Ag | PROCEDURE FOR THE MANUFACTURING OF A MODIFIED FIBER MATERIAL AND THE DYEING OF THE MODIFIED FIBER MATERIAL WITH ANIONIC TEXTILE DYES. |
TR26294A (en) * | 1991-11-20 | 1995-03-15 | Alsthom Gec | AUTOMATIC CUTTER WITH MEDIUM VOLTAGE SALTER AND USE IN MEDIUM TENSIONED DEVICES WITH A CELL. |
WO2007087846A1 (en) * | 2006-01-20 | 2007-08-09 | Henkel Kommanditgesellschaft Auf Aktien | Demulsifying detergent for technical surfaces |
WO2007122056A1 (en) * | 2006-04-18 | 2007-11-01 | Chemetall Gmbh | Process for the demulsifying cleaning of metallic surfaces |
WO2010044818A1 (en) * | 2008-10-15 | 2010-04-22 | Dow Global Technologies Inc. | Compositions for oil recovery and methods of their use |
CN105385517A (en) * | 2015-12-16 | 2016-03-09 | 重庆嗨馒头网络科技有限公司 | Ecological vehicle washing liquid |
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EP0420802B1 (en) * | 1989-09-26 | 1995-08-09 | Ciba-Geigy Ag | Aqueous, storage stable, low foaming wetting agent |
IT1250656B (en) * | 1991-07-08 | 1995-04-21 | Crinos Ind Farmacobiologia | COMPOSITION FOR CLEANING THE SKIN, HAIR AND HAIR. |
JPH05230499A (en) * | 1992-02-19 | 1993-09-07 | Yokohama Yushi Kogyo Kk | Fur detergent for the coated surface of vehicle |
US5981455A (en) * | 1993-03-19 | 1999-11-09 | The Procter & Gamble Company | Cleaning compositions with short chain nonionic surfactants |
GB9322806D0 (en) * | 1993-11-05 | 1993-12-22 | Dow Europ Sa | Aqueous alkaline composition |
US5770549A (en) * | 1996-03-18 | 1998-06-23 | Henkel Corporation | Surfactant blend for non-solvent hard surface cleaning |
US6350727B1 (en) * | 2000-01-28 | 2002-02-26 | Amway Corporation | Non-streaking no-wipe cleaning compositions with improved cleaning capability |
DE10062267A1 (en) * | 2000-12-14 | 2002-06-20 | Henkel Kgaa | Process and agent for treating the circulating water in paint booths |
US6403546B1 (en) | 2001-01-31 | 2002-06-11 | S. C. Johnson Commercial Markets, Inc. | Floor cleaner and gloss enhancer |
US7906474B2 (en) * | 2007-01-11 | 2011-03-15 | Dow Global Technologies Llc | Alkoxylate blend surfactants |
JP5412665B2 (en) * | 2008-05-16 | 2014-02-12 | ライオン株式会社 | Cleaning composition |
CN102066540A (en) * | 2008-06-18 | 2011-05-18 | 陶氏环球技术公司 | Cleaning compositions containing mid-range alkoxylates |
JP5937511B2 (en) * | 2009-09-15 | 2016-06-22 | ユニオン カーバイド ケミカルズ アンド プラスティックス テクノロジー エルエルシー | Silicone replacement for personal care compositions |
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- 1986-08-20 DE DE8686111550T patent/DE3675294D1/en not_active Expired - Fee Related
- 1986-08-20 GR GR862167A patent/GR862167B/en unknown
- 1986-08-20 AT AT86111550T patent/ATE57955T1/en not_active IP Right Cessation
- 1986-08-20 EP EP86111550A patent/EP0213554B1/en not_active Expired - Lifetime
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- 1986-08-27 ES ES8601419A patent/ES2001605A6/en not_active Expired
- 1986-08-27 NO NO863445A patent/NO166590C/en unknown
- 1986-08-27 AU AU61887/86A patent/AU581779B2/en not_active Ceased
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---|---|---|---|---|
WO1991010718A1 (en) * | 1990-01-20 | 1991-07-25 | Henkel Kommanditgesellschaft Auf Aktien | Anti-froth cleaning agents and use thereof |
WO1992016607A1 (en) * | 1991-03-12 | 1992-10-01 | Alfred Kärcher GmbH & Co. | Demulsifying cleaning agent |
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EP0616027A1 (en) * | 1993-03-19 | 1994-09-21 | The Procter & Gamble Company | Concentrated cleaning compositions |
WO2007087846A1 (en) * | 2006-01-20 | 2007-08-09 | Henkel Kommanditgesellschaft Auf Aktien | Demulsifying detergent for technical surfaces |
CN102787320B (en) * | 2006-04-18 | 2014-10-29 | 凯密特尔有限责任公司 | Process for the demulsifying cleaning of metallic surfaces |
CN102787320A (en) * | 2006-04-18 | 2012-11-21 | 凯密特尔有限责任公司 | Process for the demulsifying cleaning of metallic surfaces |
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WO2007122056A1 (en) * | 2006-04-18 | 2007-11-01 | Chemetall Gmbh | Process for the demulsifying cleaning of metallic surfaces |
US9731331B2 (en) | 2006-04-18 | 2017-08-15 | Chemetall Gmbh | Process for the demulsifying cleaning of metallic surfaces |
WO2010044818A1 (en) * | 2008-10-15 | 2010-04-22 | Dow Global Technologies Inc. | Compositions for oil recovery and methods of their use |
US8857527B2 (en) | 2008-10-15 | 2014-10-14 | Dow Global Technologies Llc | Compositions for oil recovery and methods of their use |
US8973668B2 (en) | 2008-10-15 | 2015-03-10 | Dow Global Technologies Llc | Compositions for oil recovery and methods of their use |
CN105385517A (en) * | 2015-12-16 | 2016-03-09 | 重庆嗨馒头网络科技有限公司 | Ecological vehicle washing liquid |
Also Published As
Publication number | Publication date |
---|---|
DE3530623A1 (en) | 1987-03-12 |
FI82946B (en) | 1991-01-31 |
JPS6253400A (en) | 1987-03-09 |
NO863445L (en) | 1987-03-02 |
EP0213554B1 (en) | 1990-10-31 |
EP0213554A3 (en) | 1988-09-14 |
PT83245A (en) | 1986-09-01 |
TR24410A (en) | 1991-10-08 |
DK164707B (en) | 1992-08-03 |
GR862167B (en) | 1986-12-23 |
DK394386A (en) | 1987-03-01 |
DK394386D0 (en) | 1986-08-19 |
DE3675294D1 (en) | 1990-12-06 |
FI863476A0 (en) | 1986-08-27 |
PT83245B (en) | 1989-03-30 |
FI82946C (en) | 1991-05-10 |
JP2523111B2 (en) | 1996-08-07 |
AU6188786A (en) | 1987-03-05 |
ES2001605A6 (en) | 1988-06-01 |
ATE57955T1 (en) | 1990-11-15 |
AU581779B2 (en) | 1989-03-02 |
FI863476A (en) | 1987-03-01 |
ZA866512B (en) | 1987-04-29 |
NO166590C (en) | 1991-08-14 |
CA1282666C (en) | 1991-04-09 |
NO863445D0 (en) | 1986-08-27 |
NO166590B (en) | 1991-05-06 |
DK164707C (en) | 1992-12-21 |
US4784798A (en) | 1988-11-15 |
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