DE715854C - Method of cleaning the surfaces of stones, especially of architectural monuments - Google Patents

Method of cleaning the surfaces of stones, especially of architectural monuments

Info

Publication number
DE715854C
DE715854C DEH145933D DEH0145933D DE715854C DE 715854 C DE715854 C DE 715854C DE H145933 D DEH145933 D DE H145933D DE H0145933 D DEH0145933 D DE H0145933D DE 715854 C DE715854 C DE 715854C
Authority
DE
Germany
Prior art keywords
cleaning
stones
hydrofluoric acid
architectural monuments
monuments
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.)
Expired
Application number
DEH145933D
Other languages
German (de)
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.)
HERMANN HABS
Original Assignee
HERMANN HABS
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 HERMANN HABS filed Critical HERMANN HABS
Priority to DEH145933D priority Critical patent/DE715854C/en
Application granted granted Critical
Publication of DE715854C publication Critical patent/DE715854C/en
Expired 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/08—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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/40—Products in which the composition is not well defined
    • C11D7/44—Vegetable products

Landscapes

  • 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)
  • Inorganic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Description

Verfahren zum Reinigen der Oberflächen von Steinen, besonders von Baudenkmälern Die Erfindung betrifft die Verwendung einer wäßrigen, verdünnte Flußsäure, Kupfersulfat und Saponin enthaltenden Lösung zum Reinigen der Oberflächen von Steinen, besonders von Baudenkmälern.Methods of cleaning the surfaces of stones, especially Architectural monuments The invention relates to the use of an aqueous, dilute hydrofluoric acid, Solution containing copper sulphate and saponin for cleaning the surfaces of stones, especially of architectural monuments.

Die Verwendung verdünnter Flußsäure zum Reinigen der Oberflächen von Steinen ist bereits bekannt, -und es ist auch nicht mehr neu, die gemäß der Erfindung :für einen Sonderzweck dienende Mischung für andere Zwecke zu verwenden. Wie praktische Versuche ergeben haben, führt die Verwendung verdünnter Flußsäure. zum Reinigen der Oberflächen von Steinen allein nicht zu dem gewünschten Ziel: .Der Reinigungsgrad ist ungenügend; außerdem besteht Angriffsgefahr für den Stein.The use of dilute hydrofluoric acid to clean the surfaces of Steinen is already known -and it is no longer new, according to the invention : to use a mixture for a special purpose for other purposes. How practical Experiments have shown the use of dilute hydrofluoric acid. for cleaning the surfaces of stones alone do not achieve the desired goal: the degree of cleaning is insufficient; there is also a risk of attack for the stone.

Die,vorliegende Erfindung beseitigt nun die noch vorhandenen Mängel. Die in der zu _ verwendenden Mischung als Grundbestandteil enthaltende verdünnte Flußsäure bewirkt bei der Behandlung von steinernen Oberflächen in besonders guter Weise die Loslösung von Schmutz und Ruß. Um dabei aber die Gefahr des Angriffs auf den Stein, die durch die Ver-Wendung von Flußsäure für sich allein bedingt wäre, auszuschließen; wird -in der Mischung ein bestimmter Gehalt an Kupfersulfätlösung verwendet, der die zerstörende Wirkung völlig aufhebt. Ein weiterer Gehalt an Saponinin der Mischung hat noch die Wirkung, als Schaummittel die gelösten Rußteilchen aus den Poren der Steinoberfläche herauszuheben, so daß die Schmutz- und Rußschicht durch ' nächheriges einfaches Abspritzen mit Wasser entfernt werden kann.The present invention now overcomes the remaining shortcomings. The diluted one contained in the mixture to be used as a basic ingredient Hydrofluoric acid is particularly effective when treating stone surfaces Wise the detachment of dirt and soot. In order to avoid the risk of attack the stone, which would be caused by the use of hydrofluoric acid alone, to exclude; -in the mixture a certain content of copper sulfate solution used, which completely neutralizes the destructive effect. Another content of saponinin The mixture still has the effect of removing the dissolved soot particles as a foaming agent to lift out the pores of the stone surface, so that the dirt and soot layer can be removed by simply spraying off with water.

Als besonders gut geeignetes Mischungsverhältnis hat sich folgendes empfohlen; I725 g 7o- bis 75%ige technische Flußsäure, mit Wasser auf 25,1 aufgefüllt; Zoo g Kupfersulfat techn. krist. DAB.6, die in 11 Wasser gelöst sind, 2, 5 g technisches Saponin.The following has been recommended as a particularly suitable mixing ratio; 1725 g of 70% to 75% technical hydrofluoric acid, made up to 25.1% with water; Zoo g copper sulfate techn. Krist. DAB.6 dissolved in 1 1 of water, 2, 5 g of technical saponin.

Dabei .stellt der angegebene Zusatz von Kupfersülfatlösung insofern ein Optimum dar, als ein Zuviel oder Zuwenig odie schädliche Wirkung der Flußsäure nicht eindämmen, sondern eher verstärken würde.The specified addition of copper sulphate solution represents an optimum, as too much or too little or the harmful effect of hydrofluoric acid would not contain it, but rather reinforce it.

Zur Durchführung der Reinigung werden die betreffenden steinernen Oberflächen mit dem Mittel bestrichen oder bespritzt. Man läßt dann das Mittel etwa 6 bis 7 Minuten lang einwirken, worauf.Abspritzen mittels eines scharfen Wasserstrahles, erfolgt. Durch die die Kürze der Einwirkungszeit und das anschließende gründliche Abspülen wird ebenfalls der Gefahr des Angriffs auf die Steinoberfläche vorgebeugt.To carry out the cleaning, the relevant stone Surfaces coated or splashed with the agent. You then leave the remedy for about Work in for 6 to 7 minutes, then spray off with a sharp jet of water, he follows. Due to the short exposure time and the subsequent thorough Rinsing off also prevents the risk of attacking the stone surface.

Claims (1)

PATENTANSPRUCH: Verwendung einer wäßrigen, verdünnte Flußsäure; Kupfersulfat und: Saponin enthaltenden Lösung zum Reinigen der Oberflächen von Steinen, besonders von Baudenkmälern.PATENT CLAIM: Use of an aqueous, dilute hydrofluoric acid; Copper sulfate and: solution containing saponin for cleaning the surfaces of stones, especially of architectural monuments.
DEH145933D 1935-12-14 1935-12-14 Method of cleaning the surfaces of stones, especially of architectural monuments Expired DE715854C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH145933D DE715854C (en) 1935-12-14 1935-12-14 Method of cleaning the surfaces of stones, especially of architectural monuments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH145933D DE715854C (en) 1935-12-14 1935-12-14 Method of cleaning the surfaces of stones, especially of architectural monuments

Publications (1)

Publication Number Publication Date
DE715854C true DE715854C (en) 1942-01-08

Family

ID=7179813

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH145933D Expired DE715854C (en) 1935-12-14 1935-12-14 Method of cleaning the surfaces of stones, especially of architectural monuments

Country Status (1)

Country Link
DE (1) DE715854C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222839B (en) * 1957-12-09 1966-08-11 Anna Mueller Geb Bernlochner Method for cleaning stone surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222839B (en) * 1957-12-09 1966-08-11 Anna Mueller Geb Bernlochner Method for cleaning stone surfaces

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