EP0058711A1 - Procede et produit pour passiver les surfaces en fer et en acier. - Google Patents

Procede et produit pour passiver les surfaces en fer et en acier.

Info

Publication number
EP0058711A1
EP0058711A1 EP81902484A EP81902484A EP0058711A1 EP 0058711 A1 EP0058711 A1 EP 0058711A1 EP 81902484 A EP81902484 A EP 81902484A EP 81902484 A EP81902484 A EP 81902484A EP 0058711 A1 EP0058711 A1 EP 0058711A1
Authority
EP
European Patent Office
Prior art keywords
acid
phosphonic
treated
solution
metal surface
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
EP81902484A
Other languages
German (de)
English (en)
Other versions
EP0058711B1 (fr
Inventor
Hermann Drosdziok
Jurgen Geke
Hans-Gunther Germscheid
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
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AT81902484T priority Critical patent/ATE7932T1/de
Publication of EP0058711A1 publication Critical patent/EP0058711A1/fr
Application granted granted Critical
Publication of EP0058711B1 publication Critical patent/EP0058711B1/fr
Expired legal-status Critical Current

Links

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

Definitions

  • the invention relates to a method and means for passivating iron and steel surfaces chemically with the aid of aqueous solutions which react weakly alkaline and contain a combination of certain corrosion-inhibiting substances.
  • Passivation agents are also used as an additive to forcing baths, quenching water, such as for induction hardening, cooling circuits, such as in engine test benches, and also as hydraulic fluids.
  • passivation A number of methods are known for passivation. For example, it can be carried out with oils or fats or also corresponding plastic emulsions, although undesirable layers often form. Therefore, it is often advisable to passivate the metal surfaces with aqueous solutions containing appropriate chemical additives. Such corrosion inhibiting passivation Examples of iron surfaces are alkali nitrites, alkali chromates, soaps, benzoates and alkanolamines. Maleic acid monois ⁇ alkylamides have also been used for the passivation of iron and steel surfaces.
  • the new method is characterized in that the metal surfaces are treated with 0.5 to 5 weight-based solutions, the pH value of which is between 7.5 and 10.5 and which is a combination which is clearly soluble in water
  • the weight ratio maleic monoalkylamide to alkanolamine 1: 0.3 to 1:10 and the weight ratio maleic monoalkylamide to phosphonic acid is 1: 0.01 to 1: 0.5.
  • Suitable maleic acid monoalkylamides are both amides with straight-chain and branched alkyl radicals with 6 to 14 carbon atoms, preferably with 8 to 10 carbon atoms.
  • Suitable alkanolamines are short-chain compounds such as mono-, di- and triisopropanolamine, n-propanolamine, N, N, N ', N' -tetrakis (2-hydroxyethyl) ethylenediamine and preferably mono-, di- and triethanolamine especially as a mixture.
  • Suitable complexing phosphonic acids are: 1-hydroxyalkyl-1,1-diphosphonic acids, 1-amino alkyl-1,1-diphosphonic acid, phosphonocarboxylic acids, such as in particular 2-phosphono-1,2,4-tricarboxylic acid and / or phosphonic acids the general formula
  • 1-hydroxyethane-1,1-diphosphonic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid and nitrilotrimethyleneph ⁇ sphonic acid have proven successful.
  • the phosphonic acids can also be used as alkali salts or alkanolamine salts. Free phosphonic acids can also be added to the corresponding solutions. In such a case, then by an excess of alkanolamine in the solution these are adjusted to pH 7.5 to 10.5.
  • An essential feature of the combination according to the invention is the weight ratio of maleic acid monoalkylamide to alkanolamine, which is 1: 0.3 to
  • the weight ratio of maleic acid monoalkylamide to phosphonic acid in the process according to the invention is 1: 0.01bi ⁇ 1: 0.5 and preferably 1: 0.1 to 1: 0.5.
  • a further increase in the phosphonic acid addition is possible, but does not bring any additional synergistic effects.
  • the pH of the solution from 7.5 to 10.5 that is suitable for carrying out the process is not already achieved by the alkalinity of the substances used, it can be adjusted by adding a small amount of alkali.
  • the metal surfaces made of iron or steel can be treated at elevated temperatures between 30 and 10 ° C., but preferably at room temperature.
  • the agents can also contain further substances.
  • surfactants preferably nonionic low-foaming surfactants.
  • the following are low-foaming nonionic surfactants: the adducts of ethylene or propylene oxide with polypropylene glycol or polyethylene glycol and adducts of ethylene and / or propylene oxide with mono- or polyalcohols, mono- or polyamines, fatty acids, amides and alkylphenols with an alkyl radical of preferably 8 to 20, especially 12 to 18 carbon atoms.
  • the concentration in the aqueous passivation solution is between 0.005 to 0.3 percent by weight.
  • the agents according to the invention can also contain alkanolamine soaps of short-chain fatty acids - i.e. of fatty acids with 6 to 12 carbon atoms -, for example caprylic or isononanoic acid, which reinforce the corrosion protection effect in a manner known per se and act as a solubilizer and as a foam regulator.
  • the solutions according to the invention can optionally also contain preservatives for preventing bacterial decomposition, such as, for example, chlorophenols, diphenyl derivatives, hexahydrotriazine derivatives and / or for non-ferrous metal inhibition, benztriazole, mercaptobenztriazole and lignin sulfonate in amounts of about 0.05 to 0.1 percent by weight.
  • preservatives for preventing bacterial decomposition such as, for example, chlorophenols, diphenyl derivatives, hexahydrotriazine derivatives and / or for non-ferrous metal inhibition, benztriazole, mercaptobenztriazole and lignin sulfonate in amounts of about 0.05 to 0.1 percent by weight.
  • the agents used contain the components mentioned in the stated amounts. Ge if desired, however, the corresponding agents can also be prepared in concentrated form in order to be diluted to the stated concentration immediately before use.
  • the corrosion protection obtained with the solutions according to the invention is considerably higher than the sum of the properties of the individual substances and exceeds the passivating agents used to date.
  • the outstanding corrosion-protecting properties of the process according to the invention were tested in the corrosion protection test according to DIN 51 360/2 with casting chips GG 30 at exposure times of 2 hours.
  • the test solutions were prepared at room temperature with 20 hard water.
  • the pH of all test solutions was between 8, 5 and 10.5; Test and comparison solution were adjusted to the same pH.
  • the concentration of the respective combination was 1, 1.5 and 2% in the DIN tests.
  • the comparative tests are listed in the table under a), and the solutions according to the invention are listed under b).
  • non-ionic surfactant (adduct of ethylene oxide with polyethylene glycol)

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)
  • Detergent Compositions (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

On traite les surfaces metalliques avec des solutions aqueuses a 0,5 a 5% en poids (pH 7,5 a 10,5) renfermant une combinaison de substances anticorrosives donnant une solution aqueuse limpide. Cette combinaison se compose de: a) un ou plusieurs alkylamides de l'acide n - monomaleique ou isomaleique avec 6 a 14, de preference 8 a 10 atomes de carbone, b) un ou plusieurs alkanolamines, de preference la mono-, di et/ou triethanolamine et c) des oxydes phosphoniques complexants, de preference l'oxide 1-hydroxy-alkyl-1,1-diphosphonique, l'acide 1-aminoalkyl-1,1-diphosphonique, l'acide phosphonocarbonique et/ou un acide phosphonique de formule: (FORMULE) Des acides phosphoniques preferes sont l'acide 1-hydroxyethane-1,1-diphosphonique, l'acide 2-phosphonbutane-1,2,4-tricarbonique et/ou l'acide nitrilotrimethylenephosphonique. Le rapport de a:b dans les solutions doit etre de 1:0,3 a 1:10, celui de a:c de 1:0,01 a 1:0,5. Les solutions peuvent, en outre, renfermer des agents tensio-actifs, de preference des phosphates et/ou des borates. Ces solutions permettent d'obtenir une meilleure protection contre la corrosion que celle obtenue avec les moyens employes jusqu'a present.
EP81902484A 1980-08-27 1981-08-19 Procede et produit pour passiver les surfaces en fer et en acier Expired EP0058711B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81902484T ATE7932T1 (de) 1980-08-27 1981-08-19 Verfahren und mittel zum passivieren von eisenund stahloberflaechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803032226 DE3032226A1 (de) 1980-08-27 1980-08-27 Verfahren und mittel zum passivieren von eisen- und stahloberflaechen
DE3032226 1980-08-27

Publications (2)

Publication Number Publication Date
EP0058711A1 true EP0058711A1 (fr) 1982-09-01
EP0058711B1 EP0058711B1 (fr) 1984-06-13

Family

ID=6110476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81902484A Expired EP0058711B1 (fr) 1980-08-27 1981-08-19 Procede et produit pour passiver les surfaces en fer et en acier

Country Status (13)

Country Link
US (1) US4437898A (fr)
EP (1) EP0058711B1 (fr)
JP (1) JPH0132313B2 (fr)
BE (1) BE890068A (fr)
BR (1) BR8108760A (fr)
CA (1) CA1169337A (fr)
DE (2) DE3032226A1 (fr)
ES (1) ES8206660A1 (fr)
FR (1) FR2489372B1 (fr)
IT (1) IT1137644B (fr)
MX (1) MX157164A (fr)
WO (1) WO1982000665A1 (fr)
ZA (1) ZA815967B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671934A (en) * 1986-04-18 1987-06-09 Buckman Laboratories, Inc. Aminophosphonic acid/phosphate mixtures for controlling corrosion of metal and inhibiting calcium phosphate precipitation
US5049311A (en) * 1987-02-20 1991-09-17 Witco Corporation Alkoxylated alkyl substituted phenol sulfonates compounds and compositions, the preparation thereof and their use in various applications
US4798675A (en) * 1987-10-19 1989-01-17 The Mogul Corporation Corrosion inhibiting compositions containing carboxylated phosphonic acids and sequestrants
EP0364030A1 (fr) * 1988-10-11 1990-04-18 Calgon Corporation Compositions synergiques et procédé pour l'inhibition de la corrosion de l'acier au carbone dans des systèmes aqueux
US4917737A (en) * 1989-03-13 1990-04-17 Betz Laboratories, Inc. Sealing composition and method for iron and zinc phosphating process
JPH04187782A (ja) * 1990-11-21 1992-07-06 Nippon Parkerizing Co Ltd ぶりきｄｉ缶用表面処理液
US5164234A (en) * 1991-01-24 1992-11-17 Henkel Corporation Treating an autodeposited coating with an alkaline solution containing organophosphonate ions
EP0838537B1 (fr) * 1995-07-10 2001-10-17 Nippon Paint Co., Ltd. Traitements de surface de metaux, procede de traitement de surface de metaux et materiau metallique ayant subi un traitement de surface
DE19959588A1 (de) * 1999-12-10 2001-06-13 Henkel Kgaa Metallbehandlungsflüssigkeit für den neutralen pH-Bereich
EP1652969A1 (fr) * 2004-10-28 2006-05-03 Henkel Kommanditgesellschaft auf Aktien Composition et procédé de dérouillement
CN105986277A (zh) * 2015-02-03 2016-10-05 上海立昌环境工程有限公司 一种无磷中性除锈剂的制备及其应用
RU2593569C1 (ru) * 2015-06-03 2016-08-10 Публичное Акционерное Общество "Нижнекамскнефтехим" Ингибирующий состав для защиты металлов от кислотной коррозии
JP6566740B2 (ja) * 2015-06-24 2019-08-28 日本パーカライジング株式会社 水系金属表面処理剤、皮膜の製造方法及び皮膜付き金属材料
US10443135B1 (en) 2018-05-11 2019-10-15 Macdermid Enthone Inc. Near neutral pH pickle on multi-metals
CN109504959B (zh) * 2018-12-17 2021-04-23 熊映明 铝合金喷涂预处理无铬钝化线清洗水反向串联节水配置
CN109518173B (zh) * 2018-12-17 2021-04-23 熊映明 铝合金粉末喷涂预处理铬化线清洗水反向串联节水配置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790779A (en) 1953-07-27 1957-04-30 Geigy Chem Corp Rust preventive compositions containing monoamidocarboxylic acids
DE1216066B (de) 1963-01-29 1966-05-05 Henkel & Cie Gmbh Verfahren zur Behandlung von entfetteten und mit einer sauren Loesung gebeizten Metallober-flaechen vor dem Emaillieren
US3770514A (en) * 1972-06-08 1973-11-06 American Cyanamid Co Chemical treatment of metal
DE2513735A1 (de) * 1974-04-01 1975-10-02 Calgon Corp Korrosionsschutzmittel
US4045253A (en) 1976-03-15 1977-08-30 Halliburton Company Passivating metal surfaces
DE2758123A1 (de) * 1977-12-24 1979-07-05 Basf Ag Korrosionsschutzmittel in waessrigen systemen
IT1098305B (it) * 1978-06-02 1985-09-07 Snam Progetti Antiruggine per sistemi acquosi e composizione lubrificante antiruggine
DE2962827D1 (en) 1978-10-13 1982-07-01 Ouest Union Chim Ind Corrosion inhibitor composition, process for its preparation and its use in protecting metal surfaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8200665A1 *

Also Published As

Publication number Publication date
IT1137644B (it) 1986-09-10
ES504978A0 (es) 1982-08-16
DE3032226A1 (de) 1982-04-01
ES8206660A1 (es) 1982-08-16
ZA815967B (en) 1982-09-29
DE3164174D1 (en) 1984-07-19
JPH0132313B2 (fr) 1989-06-30
CA1169337A (fr) 1984-06-19
BE890068A (fr) 1981-12-16
FR2489372A1 (fr) 1982-03-05
JPS57501289A (fr) 1982-07-22
IT8123630A0 (it) 1981-08-25
WO1982000665A1 (fr) 1982-03-04
MX157164A (es) 1988-10-31
FR2489372B1 (fr) 1986-04-11
BR8108760A (pt) 1982-07-06
US4437898A (en) 1984-03-20
EP0058711B1 (fr) 1984-06-13

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