EP0025125A1 - Utilisation d'acides hydroxycarboxyliques contenant du soufre comme inhibiteurs de corrosion pour systèmes aqueux - Google Patents

Utilisation d'acides hydroxycarboxyliques contenant du soufre comme inhibiteurs de corrosion pour systèmes aqueux Download PDF

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Publication number
EP0025125A1
EP0025125A1 EP80104710A EP80104710A EP0025125A1 EP 0025125 A1 EP0025125 A1 EP 0025125A1 EP 80104710 A EP80104710 A EP 80104710A EP 80104710 A EP80104710 A EP 80104710A EP 0025125 A1 EP0025125 A1 EP 0025125A1
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EP
European Patent Office
Prior art keywords
water
corrosion
systems
aqueous systems
corrosion inhibitors
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
EP80104710A
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German (de)
English (en)
Other versions
EP0025125B1 (fr
Inventor
Ulrich Dr. Zeidler
Volker Dr. Wehle
Ingo Wegener
Gabriele Rogall
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.)
Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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.)
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Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AT80104710T priority Critical patent/ATE5488T1/de
Publication of EP0025125A1 publication Critical patent/EP0025125A1/fr
Application granted granted Critical
Publication of EP0025125B1 publication Critical patent/EP0025125B1/fr
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Classifications

    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/16—Sulfur-containing compounds

Definitions

  • the invention relates to the use of 2-hydroxyalkyl-carboxyalkyl sulfides or sulfoxides and their water-soluble salts - hereinafter abbreviated HCS - to prevent corrosion of metals, in particular in service water systems.
  • this phosphorus-containing combination can furthermore lead to the formation of apatite or apatite-like deposits when used in larger water hardness levels, which lead to malfunctions and are difficult to remove.
  • the use of these combinations with zinc salts at higher pH values (pH '> 8.0) generally leads to increased silting up of the system due to the precipitation of zinc hydroxide.
  • Potassium, sodium, ammonium or alkanolamine salts are particularly suitable as alkali salts.
  • the amounts which are expediently added to the process water system are in the range from 0.5 to 100 g / m 3 , preferably 5 to 50 g / m3.
  • the 2-hydroxyalkyl-carboxyalkyl sulfides used can be prepared by reacting the salt of a corresponding mercaptocarboxylic acid such as thioglycolic acid, 2-mercaptopropionic acid or 3-mercaptopropionic acid in a polar solvent with the stoichiometric amount of an epoxide with a chain length of C 8 to C 18 .
  • a corresponding mercaptocarboxylic acid such as thioglycolic acid, 2-mercaptopropionic acid or 3-mercaptopropionic acid
  • the corresponding sulfoxides are obtained from the sulfides by oxidation with hydrogen peroxide. If the alkali salts, such as in particular potassium, sodium and ammonium salts or also alkanolamine salts, are not obtained directly during the preparation, they can be prepared by neutralizing the corresponding acids. Conversely, the corresponding acids can also be obtained from the salts by appropriate acidification.
  • the alkali salts such as in particular potassium, sodium and ammonium salts or also alkanolamine salts
  • the stone protection and dispersing agents listed above are used in combination with HCS in amounts of 1 to 50 g / m 3 , preferably 3 to 10 g / m 3 .
  • non-ferrous metals such as in particular benzimidazole, benzotriazole or tolyltriazole
  • HCS benzimidazole
  • benzotriazole or tolyltriazole
  • the amounts used are in the range from 0.1 to 5 g / m 3 .
  • HCS can also be used in combination with zinc salts and / or compounds containing phosphorus.
  • Zinc chloride and zinc sulfate are particularly suitable as zinc salts. Quantities (calculated as zinc) of 0.5 to 10 g / m 3 , preferably 1 to 4 g / m corresponding to an amount of 0.5 to 10 or 1 to 4 ppm are used.
  • phosphonic acids such as 1-hydroxyethane-1,1-diphosphonic acid, aminotrimethylenephosphonic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid, as well as their water-soluble salts or mixtures of these compounds, are particularly suitable as the phosphorus-containing compound. Such a combination can significantly increase the protection against corrosion.
  • biocidal substances such as glutaraldehyde, glyoxal, pentachlorophenol sodium or alkyloligoamides, preferably in the form of a reaction product of dodecylpropylenediamine and e-caprolactam in a ratio of 1: 2.
  • sulfur-containing hydroxycarboxylic acids of the general formula 1 indicated or their water-soluble salts can also be used quite generally as corrosion inhibitors, in particular for iron and in particular also as corrosion inhibitors in cooling lubricants for metal cutting.
  • test sheets 75 x 12 x 1.5 mm are immersed in a 1 liter beaker filled with 1 liter of water and a certain amount of the substance to be examined for 3 hours at room temperature. During the test period, the aqueous solutions are stirred at a rate of 100 revolutions per minute in a series of 10 beakers. Then the sheets are cleaned of corrosion products and the weight losses are determined. The corrosion protection rates of the products, based on a blank value, are calculated from the mean values of three tests each; determined.
  • test water used as the corrosive medium had the following analytical data:
  • the table below shows the reduction in the corrosive attack of a water by adding the specified agents compared to the untreated water.
  • a technical cooling system with a content of 1.2 m and a circulation of 8 m 3 / h is operated with Düsseldorf city water.
  • the evaporation losses are compensated by adding fresh water to such an extent that the salinity does not exceed twice the original value.
  • an electro-chemically measured corrosion rate of 0.18 mm / a is set in the system.
  • HCS HCS was used together with other inhibitors and the corrosion rates, expressed in mm / year, were determined using the coupon method, in which the test water was passed through a coupon test section according to ASTM (D 2688/70) under the same conditions. was pumped.
  • X and Y are commercial products based on di-N-butylamines from pre-fatty acids or their alkali salts.
  • Emulsifiable cooling lubricant concentrates with a commercially available rust inhibitor (A) based on fatty acid polydiethanolamide (reaction products of 1 mol of fatty acid and 2 mol of diethanolamine) on the one hand and 2-hydroxy-C 10 -alkyl-ß-carboxyethyl sulfide (sodium salt) (B) on the other hand were produced .
  • A rust inhibitor
  • B 2-hydroxy-C 10 -alkyl-ß-carboxyethyl sulfide
  • Example 4 3% and 5% aqueous solutions were prepared from these concentrates and the rust protection was determined as indicated in Example 4 .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP80104710A 1979-08-17 1980-08-09 Utilisation d'acides hydroxycarboxyliques contenant du soufre comme inhibiteurs de corrosion pour systèmes aqueux Expired EP0025125B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104710T ATE5488T1 (de) 1979-08-17 1980-08-09 Verwendung schwefelhaltiger hydroxycarbonsaeuren als korrosionsinhibitoren fuer waessrige systeme.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792933388 DE2933388A1 (de) 1979-08-17 1979-08-17 Korrosionsinhibitoren
DE2933388 1979-08-17

Publications (2)

Publication Number Publication Date
EP0025125A1 true EP0025125A1 (fr) 1981-03-18
EP0025125B1 EP0025125B1 (fr) 1983-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104710A Expired EP0025125B1 (fr) 1979-08-17 1980-08-09 Utilisation d'acides hydroxycarboxyliques contenant du soufre comme inhibiteurs de corrosion pour systèmes aqueux

Country Status (3)

Country Link
EP (1) EP0025125B1 (fr)
AT (1) ATE5488T1 (fr)
DE (1) DE2933388A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354871A2 (fr) * 1988-07-21 1990-02-14 Ciba-Geigy Ag Inhibition de la corrosion
DE102006054761A1 (de) * 2006-11-14 2008-05-15 Hansgrohe Ag Bereitstellung von wasserführenden Bauteilen aus Messinglegierungen mit verringerter Metallionenfreisetzung
WO2014124826A1 (fr) 2013-02-13 2014-08-21 Basf Se Concentré d'antigel avec protection anti-corrosion et composition de liquide de refroidissement aqueux préparée à partir de ce concentré
US9080093B2 (en) 2013-02-13 2015-07-14 Basf Se Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020076623A1 (fr) * 2018-10-08 2020-04-16 Ecolab Usa Inc. Composés à base de sulfure et leurs utilisations

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916878C (de) * 1941-05-16 1954-08-19 Dehydag Gmbh Verfahren zur Verminderung des korrodierenden Einflusses von Wasser und waessrigen Loesungen auf Eisen
FR1195917A (fr) * 1957-06-29 1959-11-20 Naarden Chem Fab Thiolactones odoriférantes
US2981686A (en) * 1958-10-30 1961-04-25 Shell Oil Co Metal working lubricants
FR2336389A1 (fr) * 1975-12-24 1977-07-22 Hoechst Ag Esters d'acides thiol-carboxyliques et leur preparation
EP0000337A1 (fr) * 1977-07-07 1979-01-24 Henkel Kommanditgesellschaft auf Aktien Utilisation de télomères formés de mercaptans et de composés acryliques comme inhibiteurs d'entartrage et/ou de corrosion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916878C (de) * 1941-05-16 1954-08-19 Dehydag Gmbh Verfahren zur Verminderung des korrodierenden Einflusses von Wasser und waessrigen Loesungen auf Eisen
FR1195917A (fr) * 1957-06-29 1959-11-20 Naarden Chem Fab Thiolactones odoriférantes
US2981686A (en) * 1958-10-30 1961-04-25 Shell Oil Co Metal working lubricants
FR2336389A1 (fr) * 1975-12-24 1977-07-22 Hoechst Ag Esters d'acides thiol-carboxyliques et leur preparation
EP0000337A1 (fr) * 1977-07-07 1979-01-24 Henkel Kommanditgesellschaft auf Aktien Utilisation de télomères formés de mercaptans et de composés acryliques comme inhibiteurs d'entartrage et/ou de corrosion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354871A2 (fr) * 1988-07-21 1990-02-14 Ciba-Geigy Ag Inhibition de la corrosion
EP0354871A3 (en) * 1988-07-21 1990-10-17 Ciba-Geigy Ag Corrosion inhibition
US5013482A (en) * 1988-07-21 1991-05-07 Ciba-Geigy Corporation Corrosion inhibition
AU614636B2 (en) * 1988-07-21 1991-09-05 Ciba Specialty Chemicals Holding Inc. Corrosion inhibition
DE102006054761A1 (de) * 2006-11-14 2008-05-15 Hansgrohe Ag Bereitstellung von wasserführenden Bauteilen aus Messinglegierungen mit verringerter Metallionenfreisetzung
WO2014124826A1 (fr) 2013-02-13 2014-08-21 Basf Se Concentré d'antigel avec protection anti-corrosion et composition de liquide de refroidissement aqueux préparée à partir de ce concentré
US9080093B2 (en) 2013-02-13 2015-07-14 Basf Se Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom
US9458369B2 (en) 2013-02-13 2016-10-04 Basf Se Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom

Also Published As

Publication number Publication date
DE2933388C2 (fr) 1987-03-12
EP0025125B1 (fr) 1983-11-30
ATE5488T1 (de) 1983-12-15
DE2933388A1 (de) 1981-03-26

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