EP0575355B1 - Produit desemulsifiant de nettoyage - Google Patents

Produit desemulsifiant de nettoyage Download PDF

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Publication number
EP0575355B1
EP0575355B1 EP92904748A EP92904748A EP0575355B1 EP 0575355 B1 EP0575355 B1 EP 0575355B1 EP 92904748 A EP92904748 A EP 92904748A EP 92904748 A EP92904748 A EP 92904748A EP 0575355 B1 EP0575355 B1 EP 0575355B1
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Prior art keywords
cleaning agent
agent according
sulphonates
weight ratio
anionic
Prior art date
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EP92904748A
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German (de)
English (en)
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EP0575355A1 (fr
EP0575355B2 (fr
Inventor
Reinhold HÖLLE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
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Alfred Kaercher SE and Co KG
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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
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/143—Sulfonic acid esters
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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

Definitions

  • the invention relates to a demulsifying cleaning agent which is particularly suitable for removing oil and grease contamination.
  • the area of use of such demulsifying cleaning agents is in particular the area of vehicle washing systems, such as Car wash systems or train cleaning systems are provided, in which high-pressure cleaning devices are often used.
  • the cleaning agents used up to now which are used to clean painted and unpainted surfaces of vehicles, engines, floors, facades, airplanes, etc., remove the oil and grease contaminants by emulsifying from the surface and transfer the oil and fat components as well as the contaminant particles contained therein in the transport medium water.
  • FR-A 21 63 577 discloses a large number of nonionic agents, some combined with anionic surfactants, as wash-active mixtures for use in car washes. However, this document does not disclose any demulsifying surfactant mixtures.
  • Another surfactant mixture for car washes is known from GB-A 2 134 132, which contains a proportion of an organic solvent in addition to the surfactants. However, these surfactant mixtures have no demulsifying effect.
  • EP-A 213 554 also discloses a demulsifying cleaning agent with a surface moisturizing effect, the composition of which contains nonionic and anionic surfactants is particularly suitable for the absorption of fats and oils and for cleaning vertical surfaces, the so-called surface moisturizing effect due to the special formulation of the cleaning agent is achieved.
  • this cleaning agent separates the oil and fat components of the contaminants through the demulsifying effect, so that these components can be separated from the dirty water phase.
  • the cleaning effect of these cleaning agents is overall unsatisfactory, especially with regard to the removal of mineral soiling, e.g. Dusts or pollen
  • the object of the invention is to propose a demulsifying cleaning agent which, in a wide temperature range, removes oil and greases as well as mineral contaminants from the objects to be cleaned in a satisfactory form and which in particular also removes all types of hydrocarbons emulsified in the cleaning phase when resting separates the waste water immediately as a separate phase.
  • the cleaning agent of the present invention should also be particularly suitable for use in high-pressure cleaning devices and brush washing systems.
  • the separation effect in the wastewater should in particular also meet the new requirements for the wastewater to be discharged into the public sewer network, as specified, for example, in Appendix 49 of the General Framework Administrative Regulation on minimum requirements for the discharge of wastewater into waters of December 19, 1989.
  • Cleaning agents of this type are ideally suited to cleaning oil and grease-containing contaminations, which in particular also contain mineral contaminants, such as dusts or pollen, in a wide temperature range from approx. 15 to 70 ° C. Those emulsified during the cleaning process Hydrocarbons, fats and oils of any kind are immediately separated from the wastewater at rest, and so completely that the separable demulsified wastewater fully complies with the latest wastewater regulations.
  • the cleaning agents according to the invention achieve a very good cleaning effect with economical use of cleaning agents.
  • An essential advantage of the cleaning agent according to the invention is that the demulsifying properties are not lost even over the wide temperature range from 15 to 70 ° C., which cannot be guaranteed with conventional cleaning agents of this type.
  • 15 ° C is usually the water temperature that the cold water from the public water supply has.
  • the temperature of 70 ° C is usually not exceeded when a hot water high pressure jet impacts a cleaning object.
  • the cleaning agent according to the invention can be used universally for all possible types of dirt, in particular also for mixed soiling from oil and fat as well as mineral soiling, the demulsifying effect is not lost.
  • the key feature here is the mixing ratio of the nonionic surfactants, which is expressed in the HLB G value.
  • the ratio of anionic and nonionic surfactants is also critical, since incorrect mixing can also disrupt the demulsifying effect.
  • the cleaning agents according to the invention can be present both in solid form and in liquid form.
  • the cleaning agent according to the invention can be formulated as a concentrate or as an agent prepared with water.
  • a solubilizer is added in an amount of 0.5 to 18% by weight, depending on the solubility of the individual components in water.
  • a particular advantage of the present detergent mixtures is that they can be made free of phosphates.
  • alkylbenzenesulfonates are preferred as the anionic surfactant, so that preferred cleaning agents predominantly contain those as anionic surfactants, the weight ratio V between nonionic and anionic surfactants in this case being 3.5 to 12.5.
  • dialkyl sulfonate succinates have also proven useful as anionic surfactants, and in the event that these anionic surfactants are predominantly present in the cleaning agent, a weight ratio V of 2.9 to 11 is selected.
  • anionic surfactants are the alkylnaphthalenesulfonates, the weight ratio V then being set at 3.5 to 12.
  • alkyl sulfonates Another group of substances with which very good cleaning effects are achieved are the alkyl sulfonates, and in this case the weight ratio V will preferably be 4 to 16.
  • the salts of sodium and ammonium and of triethanolamine are preferred.
  • the demulsifying effect of the cleaning agents according to the invention is somewhat concentration-dependent and, surprisingly, the concentration with which the best demulsifying effect is obtained coincides with the concentration range which results as the minimum surfactant concentration range.
  • the nonionic surfactants are preferred from the group of C 13 - 15 -oxo alcohols selected, which may represent the total non-ionic surfactant alone or in admixture with Cs to C15 fatty alcohol compounds.
  • nonionic surfactants in the cleaning agent according to the invention Due to the relatively high proportion of nonionic surfactants in the cleaning agent according to the invention, these can be processed very well using cold and hot water high-pressure devices without the operation of the device being impaired by noticeable incrustations in the temperature range above 60 ° C.
  • complexing agents or builders are usually contained in the cleaning agent in a proportion of 0.5 to 25% by weight.
  • Corrosion inhibitors for light and non-ferrous metals can of course also be added to the cleaning agent according to the invention.
  • the weight fraction of these substances is often between 0.1 and 25% by weight of the detergent.
  • colorants and fragrances are usually also added to the cleaning agent, but these play a minor role in terms of their weight percentage.
  • the latter are usually between 0.0005 and 0.4% by weight.
  • additives such as e.g. Complexing agents, corrosion inhibitors, dyes and fragrances for the cleaning agent according to the invention do not change its basic structure and characteristics, but that only additional, already known side effects are used here.
  • the complexing agents are usually selected from the group EDTA, NTA, phosphonic acids and their soluble salts.
  • the substances can be used individually or as a mixture.
  • the cleaning agent according to the invention is used as a solid agent, so-called fillers are often added, which can make up between 10 and 80% by weight of the cleaning agent.
  • Suitable fillers are e.g. Soda, borax, sulfates and urea.
  • the cleaning agent can also have an alkaline content added, which can be, for example, up to 9% by weight of NaOH.
  • the cleaning agent For cleaning applications with a different approach, it may be advisable to give the cleaning agent an acidic pH, and in this case an inorganic or organic acid is added, which can make up to 25% by weight of the cleaning agent.
  • solubilizers are used, as described above.
  • the group of cumene sulfonates and their salts has proven to be favorable.
  • formulations 1, 3 and 4 relating to liquid detergents and formulation 2 a solid detergent.
  • the formulation 5 mentioned below relates again to a liquid cleaning agent and this cleaning agent was compared with the cleaning effect of a comparison formulation which is a customary, highly effective car shampoo according to the prior art.
  • the number of times is defined as the ratio of the cleaning time of recipe 5 required for complete degreasing to the time required to achieve complete degreasing with the comparison recipe.
  • the percentages relate to percent of the detergent according to recipe 5 or the comparison recipe in water.
  • test tubes 200 ml long, 15 mm in diameter
  • 50 ml detergent solution (recipe 5) in concentrations of 5%, 3%, 2%, 1%, 0.5%, 0.25%, 0.1% and Given 0.05% and mixed with 0.2 g of red-colored spindle oil.
  • recipe 5 The optimal application concentration of recipe 5 is 0.5%, but it can also be processed with acceptable demulsifying properties in the range of 0.25 - 2.5%.
  • the principle of operation of the oil analyzer is based on the DIN regulation DIN 38 409 H18.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Detergent Compositions (AREA)
  • Colloid Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Telephone Function (AREA)

Claims (13)

1. Nettoyant désémulsifiants à tensioactifs non ioniques et anioniques, caractérisé en ce que le nettoyant comprend un mélange de tensioactifs comportant les composants suivants :
- un ou plusieurs tensioactifs non ioniques (TN) ayant une valeur moyenne HLB totale (HLBG) > 12,0 à 13,5 et
- un ou plusieurs tensioactifs anioniques (TA) de la série des sulfonates aliphatiques ou aromatiques, à l'exception des dialkylsulfosucccinates non mélangés à d'autres sulfonates,
- les tensioactifs non ioniques (TN) et les tensioactifs anioniques (TA) étant présents dans un rapport pondéral V qui est
Figure imgb0007
Figure imgb0008
et est choisi dans la plage de 2,9 à 16 lors de l'utilisation de sels d'acide sulfonique aliphatiques et dans la plage de 3,5 à 12,5 lors de l'utilisation de sels d'acide sulfonique aromatiques.
2. Nettoyant selon la revendication 1, caractérisé en ce qu'il comprend un agent de solubilisation en une quantité de 0,5 à 18 % en poids et le cas échéant un agent complexant à une concentration d'au moins 0,5 % en poids.
3. Nettoyant selon la revendication 1 ou 2, caractérisé en ce qu'il est exempt de phosphates.
4. Nettoyant selon les revendications 1 à 3, caractérisé en ce qu'il contient majoritairement des alkylbenzènesulfonates comme tensioactifs anioniques et en ce que le rapport pondéral V est compris entre 3,8 et 12,5.
5. Nettoyant selon les revendications 1 à 3, caractérisé en ce qu'il contient majoritairement des dialkylsulfosuccinates comme tensioactifs anioniques et en ce que le rapport pondéral V est compris entre 2,9 et 11.
6. Nettoyant selon une des revendications 1 à 3, caractérisé en ce qu'il contient majoritairement des alkylnaphtalènesulfonates comme tensioactifs anioniques et en ce que le rapport pondéral V est compris entre 3,5 et 12.
7. Nettoyant selon une des revendications 1 à 3, caractérisé en ce qu'il contient des alkylsulfonates comme tensioactifs anioniques et en ce que le rapport pondéral V est compris entre 4 et 16.
8. Nettoyant selon une des revendications 1 à 7, caractérisé en ce que les groupements alkyle des sulfonates aliphatiques et aromatiques comprennent des groupements alkyle en c10-C14.
9. Nettoyant selon une des revendications 1 à 8, caractérisé en ce qu'il contient des composés d'alcools gras en Cs-C, comme tensioactifs non ioniques.
10. Nettoyant selon la revendication 9, caractérisé en ce que les composés d'alcools gras sont des composés d'oxalcools.
11. Nettoyant selon la revendication 10, caractérisé en ce que les composés d'oxalcools comprennent les oxalcools en C13-C15.
12. Nettoyant selon une des revendications 1 à 11, caractérisé en ce que les sels d'acide sulfonique sont des sels basiques, notamment des sels de sodium, des sels d'ammonium ou des sels d'alcanolamine.
13. Utilisation d'un mélange de tensioactifs contenant des tensioactifs non ioniques et anioniques comme nettoyant désémulsifiant, caractérisée en ce que le mélange de tensioactifs comprend :
- un ou plusieurs tensioactifs non ioniques (TN) ayant une valeur moyenne HLB totale (HLBG) > 12,0 à 13,5 et
- un ou plusieurs tensioactifs anioniques (TA) de la série des sulfonates aliphatiques ou aromatiques;
- les tensioactifs non ioniques (TN), et les tensioactifs anioniques (TA) étant présents dans un rapport pondéral V qui est
Figure imgb0009
et est choisi dans la plage de 2,9 à 16 lors de l'utilisation de sels d'acide sulfonique aliphatiques et dans la plage de 3,5 à 12,5 lors de l'utilisation de sels d'acide sulfonique aromatiques.
EP92904748A 1991-03-12 1992-02-21 Produit desemulsifiant de nettoyage Expired - Lifetime EP0575355B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4107835 1991-03-12
DE4107835 1991-03-12
PCT/EP1992/000373 WO1992016607A1 (fr) 1991-03-12 1992-02-21 Produit desemulsifiant de nettoyage

Publications (3)

Publication Number Publication Date
EP0575355A1 EP0575355A1 (fr) 1993-12-29
EP0575355B1 true EP0575355B1 (fr) 1995-09-13
EP0575355B2 EP0575355B2 (fr) 1999-03-17

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EP92904748A Expired - Lifetime EP0575355B2 (fr) 1991-03-12 1992-02-21 Produit desemulsifiant de nettoyage

Country Status (9)

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EP (1) EP0575355B2 (fr)
AT (1) ATE127831T1 (fr)
DE (1) DE59203692D1 (fr)
DK (1) DK0575355T4 (fr)
ES (1) ES2076753T5 (fr)
FI (1) FI109916B (fr)
GR (2) GR3017809T3 (fr)
NO (1) NO305523B1 (fr)
WO (1) WO1992016607A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822441A1 (de) * 1997-06-24 1999-01-28 Heidelberger Druckmasch Ag Druckformreinigungsverfahren
US6914036B2 (en) * 2001-03-15 2005-07-05 Baker Hughes Incorporated Demulsifier for aqueous completion fluids
DE102006018216B4 (de) * 2006-04-18 2008-09-25 Chemetall Gmbh Verfahren zum demulgierenden Reinigen von metallischen Oberflächen
CN115491266B (zh) * 2022-10-26 2023-11-17 德仕能源科技集团股份有限公司 一种滤料清洗剂及其制备方法与应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE376929B (fr) * 1971-12-13 1975-06-16 Basf Wyandotte Corp
GB2134132A (en) * 1983-01-14 1984-08-08 Unilever Plc Vehicle cleaning compositions
DE3530623A1 (de) * 1985-08-28 1987-03-12 Henkel Kgaa Demulgierendes reinigungsmittel mit flaechenfeuchthalteeffekt
GB8824600D0 (en) * 1988-10-20 1988-11-23 Unilever Plc Detergent composition
DE3943070A1 (de) * 1989-12-27 1991-07-04 Henkel Kgaa Fluessiges reinigungsmittel fuer harte oberflaechen

Also Published As

Publication number Publication date
DK0575355T3 (da) 1995-12-27
NO933246L (no) 1993-09-10
GR3017809T3 (en) 1996-01-31
ES2076753T5 (es) 1999-07-01
EP0575355A1 (fr) 1993-12-29
NO305523B1 (no) 1999-06-14
DE59203692D1 (de) 1995-10-19
FI933986A0 (fi) 1993-09-10
GR3030009T3 (en) 1999-07-30
FI109916B (fi) 2002-10-31
FI933986L (fi) 1993-09-10
EP0575355B2 (fr) 1999-03-17
ATE127831T1 (de) 1995-09-15
DK0575355T4 (da) 1999-09-27
NO933246D0 (no) 1993-09-10
WO1992016607A1 (fr) 1992-10-01
ES2076753T3 (es) 1995-11-01

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