EP0575355A1 - Produit desemulsifiant de nettoyage. - Google Patents

Produit desemulsifiant de nettoyage.

Info

Publication number
EP0575355A1
EP0575355A1 EP92904748A EP92904748A EP0575355A1 EP 0575355 A1 EP0575355 A1 EP 0575355A1 EP 92904748 A EP92904748 A EP 92904748A EP 92904748 A EP92904748 A EP 92904748A EP 0575355 A1 EP0575355 A1 EP 0575355A1
Authority
EP
European Patent Office
Prior art keywords
cleaning agent
agent according
approximately
cleaning
weight
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
Application number
EP92904748A
Other languages
German (de)
English (en)
Other versions
EP0575355B1 (fr
EP0575355B2 (fr
Inventor
Reinhold Hoelle
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
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6427021&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0575355(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP0575355A1 publication Critical patent/EP0575355A1/fr
Publication of EP0575355B1 publication Critical patent/EP0575355B1/fr
Application granted granted Critical
Publication of EP0575355B2 publication Critical patent/EP0575355B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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 hitherto which are used to clean painted and unpainted surfaces of vehicles, engines, floors, facades, aircraft, etc., remove the oil and fat-containing contaminants by emulsifying from the surface and transfer the oil and fat components and the contaminant particles contained therein into the transport medium water.
  • the focus of these cleaning agents is only on the complete removal of dirt. Due to the stable emulsification of the oil and fat components, but also the at least partial dispersion of the solid particles, a separation of these contaminants from the waste water in the cleaning system is not possible or only with great effort.
  • EP-A 213 554 also discloses a demulsifying cleaning agent with a surface moisturizing effect, the composition of which is particularly suitable for the absorption of fats and oils and for cleaning vertical surfaces, the so-called surface moisturizing effect being achieved by the special formulation of the cleaning agent becomes.
  • this cleaning agent separates the oil and fat components of the impurities 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, pollen etc.
  • 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 is.
  • Cleaning agents of this type are ideally suited to cleaning oil and fat-containing contaminations, which in particular also contain mineral contaminants, such as dusts, pollen, etc., in a wide temperature range of approx. 15 to 70 ° C.
  • the hydrocarbons, fats and oils of any kind emulsified during the cleaning process become instantly 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 large temperature range of 15 to 70 ° C., which is not 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 central feature here is the mixing ratio of the nonionic surfactants, which is expressed by the HLBg value.
  • the ratio of anionic and non-ionic surfactants is also critical, since incorrect mixing here 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 about 0.5 to 18% by weight.
  • a particular advantage of the present detergent mixtures is that they can be manufactured without phosphate.
  • 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 preferably being 3.5 to 12.5 .
  • dialkyl sulfonate succinates have also proven themselves as anionic surfactants, and in the event that these anionic surfactants are predominantly present in the cleaning agent, a weight ratio V of approximately 2.9 to 11 is selected.
  • anionic surfactants is the alkylnaphthalenesulfonates, in which case the weight ratio V is then set to about 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 about 4 to 16.
  • the salts of sodium and ammonium and of triethanolamine are preferred. It was also found that 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 preferably selected from the group of C 1 -C 8 oxo alcohols, which alone or in a mixture with C 1 to can provide the total nonionic surfactant content.
  • Corrosion inhibitors for light and colored metals are added.
  • the proportion by weight of these substances is frequently between 0.1 and 25% by weight of the cleaning agent.
  • colorants and fragrances are usually added to the cleaning agent, but they 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 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.
  • Cin.ic alkyl sulfonate Na salt 1.5% Cin.ic alkyl sulfonate Na salt; 65% solution
  • Alkyl radical C 12
  • the formulation 5 named below again relates to a liquid cleaning agent and this cleaning agent was compared with the cleaning effect of a comparison formulation which is a conventional, highly effective car shampoo according to the prior art.
  • alkylbenzenesulfonate approx. C-, 2nd
  • the cleaning agent according to recipe 5 and according to the comparison recipe were examined for their cleaning effect as a function of the cleaning time.
  • the concentration of the cleaning agent was varied between 0.5% and 50%. The results are shown in the table below.
  • the number of times is defined as the ratio of the cleaning time of the recipe 5 required for complete degreasing to the time required to achieve complete degreasing with the comparison recipe.
  • 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 0.05% and 0.2 g of red-colored spindle oil were added.
  • Each value is the average of three measured values.
  • 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%.
  • test tubes 200 ml long, 15 mm in diameter
  • 70 ml detergent solution (recipe 5 in demineralized water) in concentrations of 5%, 4%, 3%, 2%, 1%, 0.5%, and 0.25 % and heated in a saturated water vapor atmosphere in an autoclave to 135 ° C. at an operating pressure of 3-4 bar for 15 minutes.
  • test conditions correspond approximately to those in a conventional hot water high-pressure cleaning device.
  • the detergent solution was removed from the test tubes and the residues / deposits on the glass walls were assessed visually.

Landscapes

  • 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)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Telephone Function (AREA)
  • Medicinal Preparation (AREA)
  • Colloid Chemistry (AREA)

Abstract

Un produit désémulsifiant de nettoyage utilisable dans une large plage de températures enlève huiles et graisses ainsi que des salissures minérales. Ce produit désémulsifiant de nettoyage contient un ou plusieurs agents tensioactifs non ioniques (NT) ayant une valeur totale moyenne d'équilibre hydrophile/lipophile (HLBG) comprise entre 12,0 et 13,5 environ ainsi qu'un ou plusieurs agents tensioactifs anioniques (AT) sélectionnés dans la série des sulfonates aliphatiques ou aromatiques. Le rapport en poids entre les agents tensioactifs non ioniques (NT) et les agents tensioactifs anioniques (AT) s'exprime par la formule V = Parties en poids de NT/Parties en poids d'AT (forme acide libre) et est ajusté entre 2,9 et 16 lorsque l'on utilise des sels aliphatiques d'acide sulfonique et entre 3,5 et 12,5 lorsque l'on utilise des sels aromatiques d'acide sulfonique.
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 true EP0575355A1 (fr) 1993-12-29
EP0575355B1 EP0575355B1 (fr) 1995-09-13
EP0575355B2 EP0575355B2 (fr) 1999-03-17

Family

ID=6427021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92904748A Expired - Lifetime EP0575355B2 (fr) 1991-03-12 1992-02-21 Produit desemulsifiant de nettoyage

Country Status (9)

Country Link
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
IT974496B (it) * 1971-12-13 1974-06-20 Basf Wyandotte Corp Perfezionamento nelle composizioni detergenti in particolare per il lavaggio di autovetture in impianti automatici o semiautoma tici
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9216607A1 *

Also Published As

Publication number Publication date
DK0575355T3 (da) 1995-12-27
FI933986A0 (fi) 1993-09-10
EP0575355B1 (fr) 1995-09-13
EP0575355B2 (fr) 1999-03-17
NO933246D0 (no) 1993-09-10
NO305523B1 (no) 1999-06-14
ATE127831T1 (de) 1995-09-15
GR3017809T3 (en) 1996-01-31
DE59203692D1 (de) 1995-10-19
ES2076753T5 (es) 1999-07-01
FI933986L (fi) 1993-09-10
FI109916B (fi) 2002-10-31
ES2076753T3 (es) 1995-11-01
NO933246L (no) 1993-09-10
GR3030009T3 (en) 1999-07-30
WO1992016607A1 (fr) 1992-10-01
DK0575355T4 (da) 1999-09-27

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