EP0160042B1 - Inhibiteurs de corrosion pour le zinc - Google Patents

Inhibiteurs de corrosion pour le zinc Download PDF

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Publication number
EP0160042B1
EP0160042B1 EP84903888A EP84903888A EP0160042B1 EP 0160042 B1 EP0160042 B1 EP 0160042B1 EP 84903888 A EP84903888 A EP 84903888A EP 84903888 A EP84903888 A EP 84903888A EP 0160042 B1 EP0160042 B1 EP 0160042B1
Authority
EP
European Patent Office
Prior art keywords
bis
zinc
triazoles
corrosion inhibitors
amino
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
EP84903888A
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German (de)
English (en)
Other versions
EP0160042A1 (fr
Inventor
Josef Penninger
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
Original Assignee
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 AT84903888T priority Critical patent/ATE37727T1/de
Publication of EP0160042A1 publication Critical patent/EP0160042A1/fr
Application granted granted Critical
Publication of EP0160042B1 publication Critical patent/EP0160042B1/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
    • C23F11/161—Mercaptans
    • 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
    • C23F11/06—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly alkaline liquids
    • 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
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom

Definitions

  • the invention relates to the use of certain bis-triazoles as corrosion inhibitors for zinc.
  • bis-triazoles of the general formula 1 where X is an amino or mercapto group and n is the number of methylene groups in the molecule, or their water-soluble salts can be used as corrosion inhibitors for zinc in aqueous systems in the pH range from 6 to 11 with excellent results.
  • the preferred compounds are 1,6-bis- [3- (5-amino-1,2,4-triazolyl)] hexane and bis- [3- (5-mercapto-1,2,4-triazolyl)].
  • the good effectiveness of the claimed compounds as an inhibitor for zinc is all the more remarkable since it has been shown that monotriazoles are only suitable for inhibition at relatively high concentrations.
  • the corrosion protection value of comparative products, such as 3-heptyl-5-amino-1,2,4-triazole or 3-heptyl-5-mercanto-1,2,4-triazole, is still 97 or 94% at application concentrations of 100 g / m3 .
  • the amount of bis-triazole which is expediently added to the aqueous media is in the range from 0.1 to 50 g / m 3 , preferably between 1 to 10 g / m 3.
  • the corrosion inhibitors can be used in aqueous solutions, dispersions or Emulsions are used.
  • the bis-triazoles are prepared by methods known per se, such as, for example, reacting a, ⁇ -dicarboxylic acids with 2 moles of aminoguanidine, or in the case of bis-mercaptotriazoles by reacting a, m-dicarboxylic acid esters and 2 moles of thiosemicarbazide.
  • the preparation of the bis-triazoles is not the subject of the invention.
  • the corrosion protection properties were determined in the following manner:
  • test strips Three carefully pretreated and weighed test strips (zinc 99.5, 80 x 15 x 1 mm) are hung in a 1-1 test vessel, which contains 800 ml test water, 30 ml buffer solution and a defined amount of substance to be examined, and 6 Leave for hours at room temperature and 80 revolutions per minute.
  • 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.

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)

Abstract

On utilise des bis-triazoles de formule (I), dans lesquelles X = un groupe amino ou mercapto; n = 0 à 10, comme inhibiteurs de corrosion pour le zinc, dans des systèmes aqueux, dans in intervalle du pH entre 6 et 11.

Claims (4)

1. Utilisation de bis-triazoles de formule I:
Figure imgb0007
ou de leurs sels hydrosolubles, X représentant un groupe amino ou un groupe mercapto, tandis que n représente le nombre de groupes méthylène pouvant aller de 0 à 10, comme inhibiteurs de corrosion pour le zinc dans des systèmes aqueux à un pH se situant dans l'intervalle allant de 6 à 11.
2. Utilisation de bis-triazoles de formule I ou de leurs sels hydrosolubles selon la revendication 1, le nombre ne de groupes méthylène allant de 0 à 6.
3. Utilisation selon la revendication 1 de 1,6-bis-[3-(5-amino-1,2,4-triazolyl)]-hexane, ainsi que de bis-[3-(5-mercapto-1 ,2,4-triazolyle)].
4. Utilisation des bis-triazoles selon la revendication 1 en quantités de 1 à 10 g/m3.
EP84903888A 1983-10-27 1984-10-19 Inhibiteurs de corrosion pour le zinc Expired EP0160042B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84903888T ATE37727T1 (de) 1983-10-27 1984-10-19 Korrosionsinhibitoren fuer zink.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338952 1983-10-27
DE19833338952 DE3338952A1 (de) 1983-10-27 1983-10-27 Korrosionsinhibitoren fuer zink

Publications (2)

Publication Number Publication Date
EP0160042A1 EP0160042A1 (fr) 1985-11-06
EP0160042B1 true EP0160042B1 (fr) 1988-10-05

Family

ID=6212842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84903888A Expired EP0160042B1 (fr) 1983-10-27 1984-10-19 Inhibiteurs de corrosion pour le zinc

Country Status (5)

Country Link
US (1) US4636359A (fr)
EP (1) EP0160042B1 (fr)
JP (1) JPS61500227A (fr)
DE (2) DE3338952A1 (fr)
WO (1) WO1985001964A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530623A1 (de) * 1985-08-28 1987-03-12 Henkel Kgaa Demulgierendes reinigungsmittel mit flaechenfeuchthalteeffekt
US4788292A (en) * 1986-07-31 1988-11-29 Ciba-Geigy Corporation Perfluoroalkyl substituted benzotriazoles
TW399094B (en) * 1995-04-11 2000-07-21 Ciba Sc Holding Ag Compounds with (benzo)triazole radicals
DE10322507A1 (de) * 2003-05-19 2004-12-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Korrosionsschutzmittel zum Schutz von Leichtmetallen
BR112017010671B1 (pt) 2014-11-24 2021-11-23 Lubrizol Advanced Materials, Inc. Composição de cloreto de vinila clorado rígida, tubo extrusado, encaixe para unir seções de tubo, e, método de estabilização de uma composição de cloreto de vinila clorado rígida
WO2023190264A1 (fr) * 2022-03-29 2023-10-05 四国化成工業株式会社 Composé triazole, procédé de synthèse dudit composé triazole, agent de couplage et leurs utilisations
WO2024005117A1 (fr) * 2022-06-30 2024-01-04 四国化成工業株式会社 Agent de traitement de surface pour câble métallique et utilisation dudit agent de traitement de surface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836557A (en) * 1954-05-17 1958-05-27 Cities Service Res & Dev Co Method of inhibiting corrosion of metals
US3408307A (en) * 1966-02-10 1968-10-29 Nalco Chemical Co Inhibiting corrosion of copper with tetrazoles
DE1521762A1 (de) * 1964-08-14 1969-09-25 Geigy Ag J R Metallschutz- und Metalldeaktivierungsmittel
EP0025863A1 (fr) * 1979-08-25 1981-04-01 Henkel Kommanditgesellschaft auf Aktien Utilisation de dérivés de triazole-1,2,4 comme inhibiteurs de corrosion pour métaux non-ferreux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102237A (en) * 1977-02-18 1978-09-06 Toshiba Corp Anticorrosive agent for metal
US4329381A (en) * 1978-02-23 1982-05-11 Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) Method for providing corrosion resistance to metal objects
US4450137A (en) * 1981-11-10 1984-05-22 Petrolite Corporation Processes for inhibiting corrosion using compounds containing sulfur and amino groups

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836557A (en) * 1954-05-17 1958-05-27 Cities Service Res & Dev Co Method of inhibiting corrosion of metals
DE1521762A1 (de) * 1964-08-14 1969-09-25 Geigy Ag J R Metallschutz- und Metalldeaktivierungsmittel
US3408307A (en) * 1966-02-10 1968-10-29 Nalco Chemical Co Inhibiting corrosion of copper with tetrazoles
EP0025863A1 (fr) * 1979-08-25 1981-04-01 Henkel Kommanditgesellschaft auf Aktien Utilisation de dérivés de triazole-1,2,4 comme inhibiteurs de corrosion pour métaux non-ferreux

Also Published As

Publication number Publication date
DE3474462D1 (en) 1988-11-10
JPH0454751B2 (fr) 1992-09-01
WO1985001964A1 (fr) 1985-05-09
JPS61500227A (ja) 1986-02-06
DE3338952A1 (de) 1985-05-09
EP0160042A1 (fr) 1985-11-06
US4636359A (en) 1987-01-13

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