EP1213343A1 - Cleaning agent and use thereof - Google Patents

Cleaning agent and use thereof Download PDF

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Publication number
EP1213343A1
EP1213343A1 EP00126809A EP00126809A EP1213343A1 EP 1213343 A1 EP1213343 A1 EP 1213343A1 EP 00126809 A EP00126809 A EP 00126809A EP 00126809 A EP00126809 A EP 00126809A EP 1213343 A1 EP1213343 A1 EP 1213343A1
Authority
EP
European Patent Office
Prior art keywords
acid
weight
cleaning agent
detergent
surfactant
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.)
Withdrawn
Application number
EP00126809A
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German (de)
French (fr)
Inventor
Frank Dr. Hesselbarth
Gholamhossein Maleki
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.)
Heidelberger Bauchemie GmbH
Original Assignee
Heidelberger Bauchemie GmbH
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
Application filed by Heidelberger Bauchemie GmbH filed Critical Heidelberger Bauchemie GmbH
Priority to EP00126809A priority Critical patent/EP1213343A1/en
Publication of EP1213343A1 publication Critical patent/EP1213343A1/en
Withdrawn legal-status Critical Current

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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/042—Acids
    • 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
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces

Definitions

  • the invention relates to a cleaning agent for removal of surface contamination. Furthermore concerns the invention a use of the cleaning agent according to the invention.
  • Silicon-containing impurities mean in particular contaminants containing silicate such as water glass residues or residues of silicate paints, silicate plasters and silicate mortars or impurities from mixtures of the aforementioned Substances.
  • silicate-containing impurities When critical surfaces like glazed and unglazed ceramic coverings or glass surfaces have the above-mentioned silicate-containing impurities, must complete these within a short period of time be removed. This time period corresponds to usually the hardening phase of silicate-containing Substances, which is usually only a few hours. If a complete cleaning of the If surfaces are not finished, the contamination can then only be removed mechanically. this has often at least a partial destruction of the surface or the underground.
  • the invention is the technical problem based on a cleaning agent of the type mentioned to indicate with the impurities even after long periods Periods can still be easily removed from surfaces can.
  • the invention teaches a cleaning agent for removing contaminants from surfaces, hydrochloric acid and 1 to 45% by weight of at least one organic acid are present, wherein the cleaning agent also has 0.02 to 2% by weight, preferably 0.05 to 2% by weight, of at least one surfactant, and wherein water is further contained in the detergent.
  • the weight percentages given here refer to the total mixture that forms the cleaning agent. The percentages by weight of all components of this total mixture or all components of the cleaning agent thus add up to 100 percent by weight.
  • the invention is based on the knowledge that with the cleaning agents according to the invention silicate-containing impurities from surfaces to very simple and at the same time can be removed effectively. This distance the contamination with the cleaning agent is also gone long periods of time are still possible. With others Words does not necessarily mean cleaning before the end of the Curing phase of e.g. water glass residues, Silicate paints, silicate plasters or silicate mortars become.
  • the cleaning agent according to the invention is suitable especially for the removal of silicate residues on sensitive or critical surfaces such as Tiles or glass surfaces.
  • the total concentration is the hydrochloric acid in the cleaning agent 0.5 to 5 wt .-%, preferably 0.5 to 4.5 wt .-%, preferred 0.5 to 3% by weight. That is, the aqueous solution of the detergent corresponds to a 0.5 to the hydrochloric acid content 5% by weight, preferably a 0.5 to 4.5% by weight, preferably a 0.5 to 3% by weight hydrochloric acid.
  • hydrochloric acid Preferably for the preparation of the cleaning agent immediately 30 wt .-% hydrochloric acid can be used and then the cleaning agent expediently contains 2 to 30% by weight, preferably 2.5 to 25% by weight of these 30 % By weight hydrochloric acid.
  • the amount used is preferably so to choose a concentration in the detergent is achieved as claimed in claim 2. It is within the scope of the invention that in the invention Detergent hydrochloric acid in a concentration is contained, the content of 2.5 to 20 wt .-%, preferably 2.5 to 15% by weight, preferably 2.5 to 12% by weight corresponds to a 30% by weight hydrochloric acid.
  • the cleaning agent Contains hydrochloric acid in a concentration that contains from 2.5 to 10% by weight, preferably 3 to 7% by weight of a 30th Wt .-% hydrochloric acid corresponds.
  • the cleaning agent Hydrochloric acid in a concentration that contains a content corresponds to about 5% by weight of a 30% by weight hydrochloric acid.
  • the cleaning agent is of particular importance at least one organic acid from the group "Monocarboxylic acid, dicarboxylic acid, hydroxy acid" included.
  • Monocarboxylic acid means a carboxylic acid with only one carboxyl group and dicarboxylic acid means one carboxylic acid with two Carboxyl groups.
  • a hydroxy acid contains at least a carboxyl group one or more hydroxyl groups.
  • the cleaning agent organic acid from the group "formic acid, acetic acid, Oxalic acid, lactic acid, tartaric acid, citric acid "contain.
  • organic acid from the group "formic acid, acetic acid, Oxalic acid, lactic acid, tartaric acid, citric acid "contain.
  • in contain at least one hydroxy acid in the cleaning agent This is expediently an acid the group "lactic acid, tartaric acid, citric acid”.
  • the cleaning agent is of particular importance Citric acid used as an organic acid. In this respect, it is within the scope of the invention that the invention Detergent just a single organic Contains acid.
  • the surfactant in the Detergent 0.03 to 1 wt .-%, preferably 0.03 to 0.5 wt .-% of the surfactant are included.
  • the content of the surfactant in the detergent 0.04 to 0.3% by weight, preferably 0.05 to 0.15% by weight.
  • To a very preferred embodiment of the invention contain about 0.1% by weight of the surfactant in the detergent.
  • the cleaning agent according to the invention a surfactant that uses good alkali tolerance and has electrolyte compatibility.
  • the surfactant used is said to be in particular with water glass be tolerable.
  • This preferably has in the invention
  • Detergent contains a high surfactant hydrophilic part in the molecular chain. So far it in the context of the invention, a surfactant based on short-chain To use fatty alcohols. - According to the preferred embodiment
  • the surfactant is a nonionic and / or an anionic surfactant. After very preferred Embodiment entirely within the scope of the invention is of particular importance in the invention Detergent used a nonionic surfactant.
  • At least one non-ionic in the detergent Surfactant from the group "alkylphenoxylate, alkylpolyglycoside” contain. It is within the scope of the invention that at least one alkylphenoxylate and / or at least one Alkyl polyglycoside based on fatty alcohols used , which preferably have 8 to 10 carbon atoms.
  • the cleaning agents according to the invention are expedient 50 to 95% by weight, preferably 60 to 92% by weight Contain water. It is within the scope of the invention that the water content of the cleaning agent 65 according to the invention up to 90% by weight, preferably 70 to 85% by weight, very preferred is about 80% by weight.
  • the invention contains Detergent at least one fluoride.
  • at least one Alkali fluoride and / or ammonium fluoride in the cleaning agent is included.
  • the cleaning agent can, for example Potassium fluoride and / or sodium fluoride and / or ammonium fluoride contain.
  • the fluoride content in the Detergent is preferably 0.2 to 2.5% by weight, preferably 0.5 to 2% by weight (based on the total mixture of the detergent).
  • the invention also relates to a use of the invention Detergent for the removal of silicon-containing Impurities, preferably to remove silicate contaminants.
  • Detergent for the removal of silicon-containing Impurities preferably to remove silicate contaminants.
  • the cleaning agent Removal of water glass and / or silicate paint and / or Silicate plaster and / or silicate mortar.
  • the cleaning agent according to the invention contaminants containing silicate are very reliable and remove effectively.
  • the silicate-containing pollution is one, for example Exposure time of about 2 to 30 minutes of the invention Detergent required. It is also within the Invention that with intensive and old soiling the surface also with the additional use of mechanical Pressure can be cleaned.
  • Cleaning agents can leave sensitive surfaces residue-free clean without any mechanical Damage to the surfaces can be observed. Furthermore occur after cleaning with the invention Detergents no color changes or no color impairments of the surfaces. To It is also important to emphasize that the cleaning agent according to the invention in a simple and inexpensive way as well is inexpensive to manufacture.
  • the invention contains Detergent 79 wt% water, 20 wt% organic acid, preferably citric acid, 0.1% by weight of a surfactant and 0.9% by weight of hydrochloric acid.
  • the latter 0.9% by weight of hydrochloric acid is based on the total concentration Hydrochloric acid in the total mixture of the detergent.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Molecular Biology (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

An agent for removing impurities from surfaces contains hydrochloric acid as well as an organic acid (1-45 wt.%), a surfactant (0.02-2 wt.%) and water.

Description

Die Erfindung betrifft ein Reinigungsmittel zur Entfernung von Verunreinigungen von Oberflächen. Weiterhin betrifft die Erfindung eine Verwendung des erfindungsgemäßen Reinigungsmittels.The invention relates to a cleaning agent for removal of surface contamination. Furthermore concerns the invention a use of the cleaning agent according to the invention.

Mit den aus der Praxis bekannten Reinigungsmitteln ist es bislang nicht oder nur schwierig möglich, siliciumhaltige Verunreinigungen von Oberflächen vollständig zu entfernen. Siliciumhaltige Verunreinigungen meint dabei insbesondere silikathaltige Verunreinigungen wie Wasserglasrückstände oder Rückstände von Silikatfarben, Silikatputzen und Silikatmörteln oder Verunreinigungen aus Mischungen der vorgenannten Stoffe. Wenn kritische Oberflächen wie glasierte und unglasierte keramische Beläge oder Glasoberflächen die genannten silikathaltigen Verunreinigungen aufweisen, müssen diese innerhalb einer kurzen Zeitspanne vollständig entfernt werden. Diese genannte Zeitspanne entspricht normalerweise der Aushärtungsphase von silikathaltigen Stoffen, die in der Regel nur wenige Stunden beträgt. Wenn innerhalb dieser Zeitspanne eine vollständige Reinigung der Oberflächen nicht erfolgt, können die Verunreinigungen anschließend nur noch mechanisch entfernt werden. Dies hat oftmals zumindest eine teilweise Zerstörung der Oberfläche bzw. des Untergrundes zur Folge.It is with the cleaning agents known from practice So far not possible or only possible with difficulty, silicon-containing Completely remove contaminants from surfaces. Silicon-containing impurities mean in particular contaminants containing silicate such as water glass residues or residues of silicate paints, silicate plasters and silicate mortars or impurities from mixtures of the aforementioned Substances. When critical surfaces like glazed and unglazed ceramic coverings or glass surfaces have the above-mentioned silicate-containing impurities, must complete these within a short period of time be removed. This time period corresponds to usually the hardening phase of silicate-containing Substances, which is usually only a few hours. If a complete cleaning of the If surfaces are not finished, the contamination can then only be removed mechanically. this has often at least a partial destruction of the surface or the underground.

Demgegenüber liegt der Erfindung das technische Problem zugrunde, ein Reinigungsmittel der eingangs genannten Art anzugeben, mit dem Verunreinigungen auch nach längeren Zeitspannen noch problemlos von Oberflächen entfernt werden können.In contrast, the invention is the technical problem based on a cleaning agent of the type mentioned to indicate with the impurities even after long periods Periods can still be easily removed from surfaces can.

Zur Lösung dieses technischen Problems lehrt die Erfindung ein Reinigungsmittel zur Entfernung von Verunreinigungen von Oberflächen,
wobei Salzsäure sowie 1 bis 45 Gew.-% zumindest einer organischen Säure enthalten sind,
wobei das Reinigungsmittel außerdem 0,02 bis 2 Gew.-%, vorzugsweise 0,05 bis 2 Gew.-% zumindest eines Tensides aufweist,
und wobei fernerhin Wasser in dem Reinigungsmittel enthalten ist. - Die hier angegebenen Gew.-%-Angaben beziehen sich auf die Gesamtmischung, die das Reinigungsmittel bildet. Die Gew.-%-Anteile aller Komponenten dieser Gesamtmischung bzw. aller Komponenten des Reinigungsmittels addieren sich somit zu 100 Gew.-%.To solve this technical problem, the invention teaches a cleaning agent for removing contaminants from surfaces,
hydrochloric acid and 1 to 45% by weight of at least one organic acid are present,
wherein the cleaning agent also has 0.02 to 2% by weight, preferably 0.05 to 2% by weight, of at least one surfactant,
and wherein water is further contained in the detergent. - The weight percentages given here refer to the total mixture that forms the cleaning agent. The percentages by weight of all components of this total mixture or all components of the cleaning agent thus add up to 100 percent by weight.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit dem erfindungsgemäßen Reinigungsmittel silikathaltige Verunreinigungen von Oberflächen auf sehr einfache und zugleich effektive Weise entfernt werden können. Diese Entfernung der Verunreinigungen mit dem Reinigungsmittel ist auch nach langen Zeitspannen noch problemlos möglich. Mit anderen Worten muss die Reinigung nicht zwingend vor dem Ende der Aushärtungsphase von beispielsweise Wasserglasrückständen, Silikatfarben, Silikatputzen oder Silikatmörteln vorgenommen werden. Das erfindungsgemäße Reinigungsmittel eignet sich insbesondere zur Entfernung von silikathaltigen Rückständen an empfindlichen bzw. kritischen Oberflächen wie Fliesen oder Glasoberflächen.The invention is based on the knowledge that with the cleaning agents according to the invention silicate-containing impurities from surfaces to very simple and at the same time can be removed effectively. This distance the contamination with the cleaning agent is also gone long periods of time are still possible. With others Words does not necessarily mean cleaning before the end of the Curing phase of e.g. water glass residues, Silicate paints, silicate plasters or silicate mortars become. The cleaning agent according to the invention is suitable especially for the removal of silicate residues on sensitive or critical surfaces such as Tiles or glass surfaces.

Nach einer Ausführung s form der Erfindung beträgt die Gesamtkonzentration der Salzsäure in dem Reinigungsmittel 0,5 bis 5 Gew.-%, vorzugsweise 0,5 bis 4,5 Gew.-%, bevorzugt 0,5 bis 3 Gew.-%. Das heißt, die wässrige Lösung des Reinigungsmittel entspricht vom Salzsäuregehalt her eine 0,5 bis 5 Gew.-%igen, vorzugsweise einer 0,5 bis 4,5 Gew.-%igen, bevorzugt einer 0,5 bis 3 Gew.-%igen Salzsäure. - Nach einer bevorzugten Ausführungsform der Erfindung ist Salzsäure in einer Konzentration enthalten, die einem Gehalt von 2 bis 30 Gew.-% einer 30 Gew.-%igen Salzsäure, vorzugsweise 2,5 bis 25 Gew.-% einer 30 Gew.-%igen Salzsäure entspricht. Vorzugsweise kann zur Herstellung des Reinigungsmittels unmittelbar 30 Gew.-%ige Salzsäure verwendet werden und dann enthält das Reinigungsmittel zweckmäßigerweise 2 bis 30 Gew.-%, vorzugsweise 2,5 bis 25 Gew.-% dieser 30 Gew.-%igen Salzsäure. Wenn zu der Herstellung des erfindungsgemäßen Reinigungsmittels Salzsäure einer anderen Konzentration verwendet wird, ist vorzugsweise deren Menge so zu wählen, dass in dem Reinigungsmittel eine Konzentration erzielt wird, wie sie im Patentanspruch 2 beansprucht ist. Es liegt im Rahmen der Erfindung, dass in dem erfindungsgemäßen Reinigungsmittel Salzsäure in einer Konzentration enthalten ist, die einem Gehalt von 2,5 bis 20 Gew.-%, vorzugsweise 2,5 bis 15 Gew.-%, bevorzugt 2,5 bis 12 Gew.-% einer 30 Gew.-%igen Salzsäure entspricht. Es liegt fernerhin im Rahmen der Erfindung, dass das Reinigungsmittel Salzsäure in einer Konzentration enthält, die einem Gehalt von 2,5 bis 10 Gew.-%, vorzugsweise 3 bis 7 Gew.-% einer 30 Gew.-%igen Salzsäure entspricht. Nach einer sehr bevorzugten Ausführungsform der Erfindung enthält das Reinigungsmittel Salzsäure in einer Konzentration, die einem Gehalt von etwa 5 Gew.-% einer 30 Gew.-%igen Salzsäure entspricht.According to an embodiment of the invention, the total concentration is the hydrochloric acid in the cleaning agent 0.5 to 5 wt .-%, preferably 0.5 to 4.5 wt .-%, preferred 0.5 to 3% by weight. That is, the aqueous solution of the detergent corresponds to a 0.5 to the hydrochloric acid content 5% by weight, preferably a 0.5 to 4.5% by weight, preferably a 0.5 to 3% by weight hydrochloric acid. - To a preferred embodiment of the invention is hydrochloric acid contained in a concentration that is salary from 2 to 30% by weight of a 30% by weight hydrochloric acid, preferably 2.5 to 25 wt .-% of a 30 wt .-% hydrochloric acid corresponds. Preferably for the preparation of the cleaning agent immediately 30 wt .-% hydrochloric acid can be used and then the cleaning agent expediently contains 2 to 30% by weight, preferably 2.5 to 25% by weight of these 30 % By weight hydrochloric acid. When to manufacture the invention Detergent hydrochloric acid of a different concentration the amount used is preferably so to choose a concentration in the detergent is achieved as claimed in claim 2. It is within the scope of the invention that in the invention Detergent hydrochloric acid in a concentration is contained, the content of 2.5 to 20 wt .-%, preferably 2.5 to 15% by weight, preferably 2.5 to 12% by weight corresponds to a 30% by weight hydrochloric acid. It also lies in the context of the invention that the cleaning agent Contains hydrochloric acid in a concentration that contains from 2.5 to 10% by weight, preferably 3 to 7% by weight of a 30th Wt .-% hydrochloric acid corresponds. According to a very preferred one Embodiment of the invention contains the cleaning agent Hydrochloric acid in a concentration that contains a content corresponds to about 5% by weight of a 30% by weight hydrochloric acid.

Nach bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, ist in dem Reinigungsmittel zumindest eine organische Säure aus der Gruppe "Monocarbonsäure, Dicarbonsäure, Hydroxysäure" enthalten. Monocarbonsäure meint eine Carbonsäure mit nur einer Carboxylgruppe und Dicarbonsäure meint eine Carbonsäure mit zwei Carboxylgruppen. Eine Hydroxysäure enthält neben zumindest einer Carboxylgruppe noch eine oder mehrere Hydroxylgruppen.According to a preferred embodiment, the scope of the invention The cleaning agent is of particular importance at least one organic acid from the group "Monocarboxylic acid, dicarboxylic acid, hydroxy acid" included. Monocarboxylic acid means a carboxylic acid with only one carboxyl group and dicarboxylic acid means one carboxylic acid with two Carboxyl groups. A hydroxy acid contains at least a carboxyl group one or more hydroxyl groups.

Vorzugsweise ist in dem Reinigungsmittel zumindest eine organische Säure aus der Gruppe "Ameisensäure, Essigsäure, Oxalsäure, Milchsäure, Weinsäure, Zitronensäure" enthalten. Nach sehr bevorzugter Ausführungsform der Erfindung ist in dem Reinigungsmittel zumindest eine Hydroxysäure enthalten. Dabei handelt es sich zweckmäßigerweise um eine Säure aus der Gruppe "Milchsäure, Weinsäure, Zitronensäure". Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, wird in dem Reinigungsmittel Zitronensäure als organische Säure eingesetzt. Insoweit liegt es im Rahmen der Erfindung, dass das erfindungsgemäße Reinigungsmittel nur eine einzige organische Säure enthält. There is preferably at least one in the cleaning agent organic acid from the group "formic acid, acetic acid, Oxalic acid, lactic acid, tartaric acid, citric acid "contain. According to a very preferred embodiment of the invention, in contain at least one hydroxy acid in the cleaning agent. This is expediently an acid the group "lactic acid, tartaric acid, citric acid". To very preferred embodiment within the scope of the invention The cleaning agent is of particular importance Citric acid used as an organic acid. In this respect, it is within the scope of the invention that the invention Detergent just a single organic Contains acid.

Zweckmäßigerweise sind in dem Reinigungsmittel 2 bis 40 Gew.-%, vorzugsweise 5 bis 35 Gew.-% der organischen Säure enthalten. Es liegt im Rahmen der Erfindung, dass das Reinigungsmittel 10 bis 30 Gew.-%, vorzugsweise 12 bis 28 Gew.-%, bevorzugt 15 bis 25 Gew.-%, sehr bevorzugt 17 bis 23 Gew.-% der organischen Säure enthält.Expediently there are 2 to 40 in the cleaning agent % By weight, preferably 5 to 35% by weight, of the organic acid contain. It is within the scope of the invention that Detergent 10 to 30 wt .-%, preferably 12 to 28 % By weight, preferably 15 to 25% by weight, very preferably 17 to Contains 23 wt .-% of the organic acid.

Nach bevorzugter Ausführungsform der Erfindung sind in dem Reinigungsmittel 0,03 bis 1 Gew.-%, vorzugsweise 0,03 bis 0,5 Gew.-% des Tensides enthalten sind. Zweckmäßigerweise beträgt der Gehalt des Tensides in dem Reinigungsmittel 0,04 bis 0,3 Gew.-%, bevorzugt 0,05 bis 0,15 Gew.-%. Nach einer sehr bevorzugten Ausführungsform der Erfindung sind etwa 0,1 Gew.-% des Tensides in dem Reinigungsmittel enthalten.According to a preferred embodiment of the invention are in the Detergent 0.03 to 1 wt .-%, preferably 0.03 to 0.5 wt .-% of the surfactant are included. Conveniently, is the content of the surfactant in the detergent 0.04 to 0.3% by weight, preferably 0.05 to 0.15% by weight. To a very preferred embodiment of the invention contain about 0.1% by weight of the surfactant in the detergent.

Zweckmäßigerweise wird für das erfindungsgemäße Reinigungsmittel ein Tensid verwendet, dass eine gute Alkaliverträglichkeit und Elektrolytverträglichkeit aufweist. Das erfindungsgemäß eingesetzte Tensid soll insbesondere mit Wasserglas verträglich sein. Vorzugsweise weist das in dem erfindungsgemäßen Reinigungsmittel enthaltene Tensid einen hohen hydrophilen Anteil in der Molekülkette auf. Insoweit liegt es im Rahmen der Erfindung, ein Tensid auf Basis kurzkettiger Fettalkohole zu verwenden. - Nach bevorzugter Ausführungsform der Erfindung ist das Tensid ein nichtionisches und/oder ein anionisches Tensid. Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, wird in dem erfindungsgemäßen Reinigungsmittel ein nichtionisches Tensid eingesetzt. Vorzugsweise ist in dem Reinigungsmittel zumindest ein nichtionisches Tensid aus der Gruppe "Alkylphenoxylat, Alkylpolyglykosid" enthalten. Es liegt im Rahmen der Erfindung, dass zumindest ein Alkylphenoxylat und/oder zumindest ein Alkylpolyglykosid auf Basis von Fettalkoholen eingesetzt wird, die vorzugsweise 8 bis 10 Kohlenstoffatome aufweisen.It is expedient for the cleaning agent according to the invention a surfactant that uses good alkali tolerance and has electrolyte compatibility. The invention The surfactant used is said to be in particular with water glass be tolerable. This preferably has in the invention Detergent contains a high surfactant hydrophilic part in the molecular chain. So far it in the context of the invention, a surfactant based on short-chain To use fatty alcohols. - According to the preferred embodiment In the invention, the surfactant is a nonionic and / or an anionic surfactant. After very preferred Embodiment entirely within the scope of the invention is of particular importance in the invention Detergent used a nonionic surfactant. Preferably is at least one non-ionic in the detergent Surfactant from the group "alkylphenoxylate, alkylpolyglycoside" contain. It is within the scope of the invention that at least one alkylphenoxylate and / or at least one Alkyl polyglycoside based on fatty alcohols used , which preferably have 8 to 10 carbon atoms.

Zweckmäßigerweise sind in dem erfindungsgemäßen Reinigungsmittel 50 bis 95 Gew.-%, vorzugsweise 60 bis 92 Gew.-% Wasser enthalten. Es liegt im Rahmen der Erfindung, dass der Wassergehalt des erfindungsgemäßen Reinigungsmittels 65 bis 90 Gew.-%, bevorzugt 70 bis 85 Gew.-%, sehr bevorzugt etwa 80 Gew.-% beträgt.The cleaning agents according to the invention are expedient 50 to 95% by weight, preferably 60 to 92% by weight Contain water. It is within the scope of the invention that the water content of the cleaning agent 65 according to the invention up to 90% by weight, preferably 70 to 85% by weight, very preferred is about 80% by weight.

Nach einer Ausführungsform der Erfindung enthält das erfindungsgemäße Reinigungsmittel zumindest ein Fluorid. Dabei liegt es im Rahmen der Erfindung, dass zumindest ein Alkalifluorid und/oder Ammoniumfluorid in dem Reinigungsmittel enthalten ist. Das Reinigungsmittel kann beispielsweise Kaliumfluorid und/oder Natriumfluorid und/oder Ammoniumfluorid enthalten. Der Gehalt des Fluorides in dem Reinigungsmittel beträgt vorzugsweise 0,2 bis 2,5 Gew.-%, bevorzugt 0,5 bis 2 Gew.-% (bezogen auf die Gesamtmischung des Reinigungsmittels).According to one embodiment of the invention, the invention contains Detergent at least one fluoride. there it is within the scope of the invention that at least one Alkali fluoride and / or ammonium fluoride in the cleaning agent is included. The cleaning agent can, for example Potassium fluoride and / or sodium fluoride and / or ammonium fluoride contain. The fluoride content in the Detergent is preferably 0.2 to 2.5% by weight, preferably 0.5 to 2% by weight (based on the total mixture of the detergent).

Die Erfindung betrifft auch eine Verwendung des erfindungsgemäßen Reinigungsmittels zur Entfernung von siliciumhaltigen Verunreinigungen, vorzugsweise zur Entfernung von silikathaltigen Verunreinigungen. Im Rahmen der Erfindung liegt bevorzugt eine Verwendung des Reinigungsmittels zur Entfernung von Wasserglas und/oder Silikatfarbe und/oder Silikatputz und/oder Silikatmörtel. The invention also relates to a use of the invention Detergent for the removal of silicon-containing Impurities, preferably to remove silicate contaminants. Within the scope of the invention is preferably a use of the cleaning agent Removal of water glass and / or silicate paint and / or Silicate plaster and / or silicate mortar.

Mit dem erfindungsgemäßen Reinigungsmittel lassen sich silikathaltige Verunreinigungen sehr funktionssicher und effektiv entfernen. Je nach Verschmutzungsgrad und Alter der silikathaltigen Verschmutzung ist beispielsweise eine Einwirkzeit von etwa 2 bis 30 Min. des erfindungsgemäßen Reinigungsmittels erforderlich. Es liegt auch im Rahmen der Erfindung, dass bei intensiven und alten Verschmutzungen die Oberfläche auch unter zusätzlicher Anwendung von mechanischem Druck gereinigt werden. Mit dem erfindungsgemäßen Reinigungsmittel lassen sich empfindliche Oberflächen rückstandsfrei reinigen, ohne dass irgendwelche mechanischen Beschädigungen an den Oberflächen zu beobachten sind. Fernerhin treten nach der Reinigung mit dem erfindungsgemäßen Reinigungsmittel keine farblichen Veränderungen bzw. keine farblichen Beeinträchtigungen der Oberflächen auf. Zu betonen ist auch, dass das erfindungsgemäße Reinigungsmittel auf einfache und wenig aufwendige Weise sowie auf kostengünstige Weise herstellbar ist.With the cleaning agent according to the invention contaminants containing silicate are very reliable and remove effectively. Depending on the degree of pollution and age the silicate-containing pollution is one, for example Exposure time of about 2 to 30 minutes of the invention Detergent required. It is also within the Invention that with intensive and old soiling the surface also with the additional use of mechanical Pressure can be cleaned. With the invention Cleaning agents can leave sensitive surfaces residue-free clean without any mechanical Damage to the surfaces can be observed. Furthermore occur after cleaning with the invention Detergents no color changes or no color impairments of the surfaces. To It is also important to emphasize that the cleaning agent according to the invention in a simple and inexpensive way as well is inexpensive to manufacture.

Nach einem bevorzugten Ausführungsbeispiel enthält das erfindungsgemäße Reinigungsmittel 79 Gew.-% Wasser, 20 Gew.-% organische Säure, vorzugsweise Zitronensäure, 0,1 Gew.-% eines Tensides und 0,9 Gew.-% an Salzsäure. Die letztgenannten 0,9 Gew.-% Salzsäure beziehen sich auf die Gesamtkonzentration Salzsäure in der Gesamtmischung des Reinigungsmittels.According to a preferred embodiment, the invention contains Detergent 79 wt% water, 20 wt% organic acid, preferably citric acid, 0.1% by weight of a surfactant and 0.9% by weight of hydrochloric acid. The latter 0.9% by weight of hydrochloric acid is based on the total concentration Hydrochloric acid in the total mixture of the detergent.

Claims (10)

Reinigungsmittel zur Entfernung von Verunreinigungen von Oberflächen,
wobei Salzsäure sowie 1 bis 45 Gew.-% zumindest einer organischen Säure enthalten sind,
wobei das Reinigungsmittel außerdem 0,02 bis 2 Gew.-% zumindest eines Tensides aufweist,
und wobei fernerhin Wasser in dem Reinigungsmittel enthalten ist.Detergents to remove contaminants from surfaces,
hydrochloric acid and 1 to 45% by weight of at least one organic acid are present,
wherein the cleaning agent also has 0.02 to 2% by weight of at least one surfactant,
and wherein water is further contained in the detergent. Reinigungsmittel nach Anspruch 1, wobei Salzsäure in einer Konzentration enthalten ist, die einem Gehalt von 2 bis 30 Gew.-% einer 30 Gew.-%igen Salzsäure, vorzugsweise 2,5 bis 25 Gew.-% einer 30 Gew.-%igen Salzsäure entspricht.Detergent according to claim 1, wherein hydrochloric acid in a concentration that contains 2 to 30% by weight of a 30% by weight hydrochloric acid, preferably 2.5 to 25 wt .-% of a 30 wt .-% hydrochloric acid corresponds. Reinigungsmittel nach einem der Ansprüche 1 oder 2, wobei zumindest eine organische Säure aus der Gruppe "Monocarbonsäure, Dicarbonsäure, Hydroxysäure" enthalten ist.Cleaning agent according to one of claims 1 or 2, wherein at least one organic acid from the group "monocarboxylic acid, Dicarboxylic acid, hydroxy acid "is included. Reinigungsmittel nach Anspruch 3, wobei zumindest eine organische Säure aus der Gruppe "Ameisensäure, Essigsäure, Oxalsäure, Milchsäure, Weinsäure, Zitronensäure" enthalten ist.Cleaning agent according to claim 3, wherein at least one organic acid from the group "formic acid, acetic acid, Oxalic acid, lactic acid, tartaric acid, citric acid "contain is. Reinigungsmittel nach einem der Ansprüche 1 bis 4, wobei 2 bis 40 Gew.-%, vorzugsweise 5 bis 35 Gew.-% der organischen Säure enthalten sind. Cleaning agent according to one of claims 1 to 4, wherein 2 to 40 wt .-%, preferably 5 to 35 wt .-% of the organic Acid are included. Reinigungsmittel nach einem der Ansprüche 1 bis 5, wobei 0,03 bis 1 Gew.-%, vorzugsweise 0,03 bis 0,5 Gew.-% des Tensides enthalten sind.Cleaning agent according to one of claims 1 to 5, wherein 0.03 to 1% by weight, preferably 0.03 to 0.5% by weight of the Surfactants are included. Reinigungsmittel nach einem der Ansprüche 1 bis 6, wobei das Tensid ein nichtionisches und/oder ein anionisches Tensid ist.Detergent according to one of claims 1 to 6, wherein the surfactant is a nonionic and / or an anionic Is surfactant. Reinigungsmittel nach Anspruch 7, wobei zumindest ein nichtionisches Tensid aus der Gruppe "Alkylphenoxylat, Alkylpolyglykosid" enthalten ist.Cleaning agent according to claim 7, wherein at least one nonionic surfactant from the group "alkylphenoxylate, Alkyl polyglycoside "is included. Reinigungsmittel nach einem der Ansprüche 1 bis 8, wobei 50 bis 95 Gew.-%, vorzugsweise 60 bis 92 Gew.-% Wasser enthalten sind.Cleaning agent according to one of claims 1 to 8, wherein Contain 50 to 95 wt .-%, preferably 60 to 92 wt .-% water are. Verwendung des Reinigungsmittels nach einem der Ansprüche 1 bis 9, zur Entfernung von siliciumhaltigen Verunreinigungen.Use of the cleaning agent according to one of the claims 1 to 9, for the removal of silicon-containing impurities.
EP00126809A 2000-12-07 2000-12-07 Cleaning agent and use thereof Withdrawn EP1213343A1 (en)

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DE102006011875A1 (en) * 2006-03-15 2007-09-20 Enrico Putzke Acid based cleaning solution, useful for wells and pumps, comprises water, hydrochloric acid, oxalic acid and an amphoteric surfactant

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