EP0144663B1 - Utilisation d'inhibiteurs de corrosion dans des systèmes aqueux - Google Patents

Utilisation d'inhibiteurs de corrosion dans des systèmes aqueux Download PDF

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Publication number
EP0144663B1
EP0144663B1 EP84112673A EP84112673A EP0144663B1 EP 0144663 B1 EP0144663 B1 EP 0144663B1 EP 84112673 A EP84112673 A EP 84112673A EP 84112673 A EP84112673 A EP 84112673A EP 0144663 B1 EP0144663 B1 EP 0144663B1
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EP
European Patent Office
Prior art keywords
corrosion inhibitors
aqueous systems
salts
hydrogen
alkyl radical
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
EP84112673A
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German (de)
English (en)
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EP0144663A1 (fr
Inventor
Josef Dr. Penninger
Jürgen Dr. Geke
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
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Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AT84112673T priority Critical patent/ATE29527T1/de
Publication of EP0144663A1 publication Critical patent/EP0144663A1/fr
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Publication of EP0144663B1 publication Critical patent/EP0144663B1/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
    • C23F11/12—Oxygen-containing compounds
    • C23F11/124—Carboxylic acids
    • C23F11/126—Aliphatic acids

Definitions

  • the invention relates to the use of salts of special aroylcarboxylic acids as corrosion inhibitors in aqueous systems.
  • Corrosion protection in aqueous systems is a major problem in technical processes when it affects metals at risk, such as copper, zinc or aluminum.
  • the use of corrosion inhibitors, for example in cleaning agents, cooling lubricants, hydraulic fluids or cooling water, has so far often led to a number of application problems. Foam formation, for example, is undesirable.
  • the water solubility or the water hardness stability is also important for the usability of the agents.
  • the toxicity and degradability of the substances and their storage stability also play an important role.
  • alkali metal salts such as sodium or potassium salts
  • ammonium salts with organic bases such as ammonia, mono-, di- or trialkanolamines
  • organic bases such as ammonia, mono-, di- or trialkanolamines
  • diethanolamine has proven to be advantageous.
  • the anticorrosive agents according to the invention can moreover be used individually or as a mixture in aqueous solutions, dispersions or emulsions.
  • a high level of effectiveness is available even at low concentrations. It has been shown that a sufficient effect is sometimes achieved with 0.5 kg / m 3 .
  • Quantities of 0.5 to 10 kg / m 3 , preferably 1 to 10 kg / m 3 are therefore suitable.
  • the agents used also have a pronounced lack of foam and have good water hardness stability.
  • the aroylcarboxylic acids are prepared by methods known per se. They can be obtained, for example, by Friedel-Crafts acylation of alkylbenzenes with appropriate cyclic anhydrides. The preparation of the aroylcarboxylic acids or their salts is not the subject of the invention.
  • test strips Three carefully pretreated and weighed test strips (unalloyed steel, 80 x 15 x 1 mm) were hung in a 1 l vessel containing 800 ml test water, 50 ml buffer solution and a defined amount of the substance to be examined, and added for 3 hours Leave room temperature and 80 revolutions per minute in it.
  • the corrosion protection value S was calculated from the weight loss.
  • test water used as a corrosive medium was produced in accordance with DIN 51360/2 and. buffered with ammonia / ammonium chloride.
  • Table 4 shows the results obtained in comparison with benzenesulfonamidocaproic acid.
  • Tables 1 to 3 show which compounds are involved in the products according to formula I designated A to T.
  • the specified bases were used to neutralize the aroylcarboxylic acids.

Landscapes

  • 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)
  • Lubricants (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Detergent Compositions (AREA)

Claims (4)

1. Utilisation de sels alcalins et/ou d'ammonium de composés de formule I
Figure imgb0010
dans laquelle R1 et R2 représentent de l'hydrogène ou un radical alcoyle ayant 1 à 6 atomes de carbone et R3 représente CH = CH, (CH2)2 ou (CH2)3, en tant qu'inhibiteurs de corrosion dans des systèmes aqueux.
2. Utilisation des composés selon la revendication 1, R1 représentant un radical alcoyle ayant 3 à 4 atomes de carbone et R2 de l'hydrogène.
3. Utilisation de mélanges des sels selon la revendication 1.
4. Utilisation des sels selon la revendication 1 en une quantité de 1 à 10 kg/m3.
EP84112673A 1983-10-27 1984-10-19 Utilisation d'inhibiteurs de corrosion dans des systèmes aqueux Expired EP0144663B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112673T ATE29527T1 (de) 1983-10-27 1984-10-19 Verwendung von korrosionsinhibitoren in waessrigen systemen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338953 1983-10-27
DE19833338953 DE3338953A1 (de) 1983-10-27 1983-10-27 Verwendung von korrosionsinhibitoren in waessrigen systemen

Publications (2)

Publication Number Publication Date
EP0144663A1 EP0144663A1 (fr) 1985-06-19
EP0144663B1 true EP0144663B1 (fr) 1987-09-09

Family

ID=6212843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112673A Expired EP0144663B1 (fr) 1983-10-27 1984-10-19 Utilisation d'inhibiteurs de corrosion dans des systèmes aqueux

Country Status (14)

Country Link
US (1) US4909987A (fr)
EP (1) EP0144663B1 (fr)
JP (1) JPS60110885A (fr)
AT (1) ATE29527T1 (fr)
AU (1) AU568578B2 (fr)
BR (1) BR8405451A (fr)
CA (1) CA1261610A (fr)
DE (2) DE3338953A1 (fr)
DK (1) DK161896C (fr)
ES (1) ES537133A0 (fr)
GR (1) GR80694B (fr)
NO (1) NO842824L (fr)
PT (1) PT79409B (fr)
ZA (1) ZA848389B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212752A1 (fr) * 1985-08-14 1987-03-04 Pumptech N.V. Procédé et composition d'inhibition de la corrosion de fer et d'acier
EP0412933A1 (fr) * 1989-08-08 1991-02-13 Ciba-Geigy Ag Composition de revêtements
EP0619290A2 (fr) * 1993-04-07 1994-10-12 Ciba-Geigy Ag Sels de métaux alcalino-terreux et de transition ainsi que les complexes de métaux de transition d'acides cétocarboxyliques et leur emploi en tant qu'inhibiteurs de corrosion
GB2279344A (en) * 1993-06-25 1995-01-04 Ciba Geigy Ag Carrier-bound ketocarboxylic acids as corrosion inhibitors
US5519074A (en) * 1994-01-18 1996-05-21 Ciba-Geigy Corporation Complexes of morpholine derivatives with keto-acids as corrosion inhibitors

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600401A1 (de) * 1986-01-09 1987-07-16 Henkel Kgaa Verwendung von alkylbenzoylacrylsaeuren als korrosionsinhibitoren
US5183842A (en) * 1989-08-08 1993-02-02 Ciba-Geigy Corporation Method of producing an organic, corrosion-resistant surface coating
GB9101468D0 (en) * 1991-01-23 1991-03-06 Ciba Geigy Coating compositions
ZA932674B (en) * 1992-05-06 1995-03-16 Mintek The aesthetic enhancement or modification of articles or components made of non-ferrous metals.
GB2290789B (en) * 1994-07-01 1998-09-16 Ciba Geigy Ag Titanium and zirconium complexes of carboxylic acids as corrosion inhibitors
TW428018B (en) * 1995-06-29 2001-04-01 Ciba Sc Holding Ag Aminosilane salts and silanamides of carboxylic acids as corrosion inhibitors
DK12497A (da) 1996-02-12 1997-08-13 Ciba Geigy Ag Korrisionsinhiberende overtrækssammensætninger til metaller
MD4245C1 (ro) * 2012-04-19 2014-02-28 Институт Химии Академии Наук Молдовы Inhibitor de coroziune a oţelului în apă
MD4310C1 (ro) * 2013-07-17 2015-06-30 Институт Химии Академии Наук Молдовы Inhibitor de coroziune a oţelului în apă

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366076A (en) * 1980-06-11 1982-12-28 Ciba-Geigy Corporation Corrosion inhibited compositions
JPS6014108B2 (ja) * 1980-12-31 1985-04-11 一方社油脂工業株式会社 防錆剤
IT1210582B (it) * 1981-10-22 1989-09-14 Roussel Maestretti Spa Derivati di acido 4-fenil-4-ossobuten-2-oico dotati di proprieta'farmacologiche e composizioni farmaceutiche che li contengono
JPS59133377A (ja) * 1983-01-18 1984-07-31 Katayama Chem Works Co Ltd 水中金属防食方法
CA1267746A (fr) * 1983-05-09 1990-04-10 Andreas Lindert Traitement du metal avec un derive de poly- alkenylphenol
DE3416120A1 (de) * 1984-04-30 1985-10-31 Henkel KGaA, 4000 Düsseldorf Benzoylalanine und ihre verwendung als korrosionsinhibitoren fuer waessrige systeme

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212752A1 (fr) * 1985-08-14 1987-03-04 Pumptech N.V. Procédé et composition d'inhibition de la corrosion de fer et d'acier
US5013483A (en) * 1985-08-14 1991-05-07 Dowell Schlumberger Incorporated Process and composition for inhibiting iron and steel corrosion
EP0412933A1 (fr) * 1989-08-08 1991-02-13 Ciba-Geigy Ag Composition de revêtements
EP0619290A2 (fr) * 1993-04-07 1994-10-12 Ciba-Geigy Ag Sels de métaux alcalino-terreux et de transition ainsi que les complexes de métaux de transition d'acides cétocarboxyliques et leur emploi en tant qu'inhibiteurs de corrosion
US5458678A (en) * 1993-04-07 1995-10-17 Ciba-Geigy Corporation Alkaline earth metal salts, transition metal salts and transition metal complexes of ketocarboxylic acids as corrosion inhibitors
GB2279344A (en) * 1993-06-25 1995-01-04 Ciba Geigy Ag Carrier-bound ketocarboxylic acids as corrosion inhibitors
US5489447A (en) * 1993-06-25 1996-02-06 Ciba-Geigy Corporation Carrier-bound ketocarboxylic acids as corrosion inhibitors
GB2279344B (en) * 1993-06-25 1997-08-13 Ciba Geigy Ag Carrier-bound ketocarboxylic acids as corrosion inhibitors
US5519074A (en) * 1994-01-18 1996-05-21 Ciba-Geigy Corporation Complexes of morpholine derivatives with keto-acids as corrosion inhibitors

Also Published As

Publication number Publication date
PT79409A (de) 1984-11-01
ES8601328A1 (es) 1985-10-16
DK466384A (da) 1985-04-28
ES537133A0 (es) 1985-10-16
PT79409B (de) 1986-09-08
NO842824L (no) 1985-04-29
DE3466018D1 (en) 1987-10-15
DK466384D0 (da) 1984-09-28
JPS60110885A (ja) 1985-06-17
DK161896B (da) 1991-08-26
DE3338953A1 (de) 1985-05-09
ATE29527T1 (de) 1987-09-15
ZA848389B (en) 1985-06-26
CA1261610A (fr) 1989-09-26
US4909987A (en) 1990-03-20
BR8405451A (pt) 1985-09-03
EP0144663A1 (fr) 1985-06-19
GR80694B (en) 1985-02-01
AU568578B2 (en) 1988-01-07
AU3472384A (en) 1985-05-02
DK161896C (da) 1992-02-03
JPH0414193B2 (fr) 1992-03-12

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