GB1149200A - Process for the passivation of ferrous metal surface - Google Patents

Process for the passivation of ferrous metal surface

Info

Publication number
GB1149200A
GB1149200A GB46816/66A GB4681666A GB1149200A GB 1149200 A GB1149200 A GB 1149200A GB 46816/66 A GB46816/66 A GB 46816/66A GB 4681666 A GB4681666 A GB 4681666A GB 1149200 A GB1149200 A GB 1149200A
Authority
GB
United Kingdom
Prior art keywords
ferrous metal
passivation
oct
reaction
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.)
Expired
Application number
GB46816/66A
Inventor
Fred Norman Teumac
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24008538&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1149200(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1149200A publication Critical patent/GB1149200A/en
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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/77—Controlling or regulating of the coating process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers

Abstract

1,149,200. Passivating ferrous metal surfaces, preventing corrosion. DOW CHEMICAL CO. Oct. 19, 1966 [Oct. 24, 1965], No. 46816/66. Headings C7E and C7U. A process for the passivation of a ferrous metal surface comprises contacting it with an aqueous alkaline solution having an oxidation potential of 175-250 m. v. (measured between iron and saturated calomel electrodes) at a temperature of 37-8‹-90-5‹C. and containing Fe<SP>++</SP> or Fe<SP>+++</SP> salts of one or more amino carboxylic acid chelating agents. The solution may be formed in situ by reaction of an alkaline solution containing the chelating agent(s) with scale and oxide residues on the ferrous surface the oxidation potential being controlled by the addition of an oxidizing agent (e.g. oxygen, air, Na NO 2 or HNO 3 ). This reaction will also serve to remove any copper on the surface. Examples of suitable chelating agents, such as E. D. T. A. , are also given.
GB46816/66A 1965-10-24 1966-10-19 Process for the passivation of ferrous metal surface Expired GB1149200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US504983A US3413160A (en) 1965-10-24 1965-10-24 Passivation of ferrous metal surface

Publications (1)

Publication Number Publication Date
GB1149200A true GB1149200A (en) 1969-04-16

Family

ID=24008538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46816/66A Expired GB1149200A (en) 1965-10-24 1966-10-19 Process for the passivation of ferrous metal surface

Country Status (5)

Country Link
US (1) US3413160A (en)
JP (1) JPS512418B1 (en)
BE (1) BE688683A (en)
GB (1) GB1149200A (en)
NL (1) NL6614093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679705A (en) * 2012-05-30 2012-09-19 中宇建材集团有限公司 New surface treatment method of copper product

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839096A (en) * 1971-01-22 1974-10-01 Int Nickel Co Reproducibility of color in coloring stainless steel
US3951710A (en) * 1974-09-13 1976-04-20 International Business Machines Corporation Method for removing copper contaminant from semiconductor surfaces
JPS5275181A (en) * 1975-12-13 1977-06-23 Sony Corp Formation of oxide film
JPS547543U (en) * 1977-06-20 1979-01-18
US4629570A (en) * 1981-11-09 1986-12-16 Dowell Schlumberger Incorporated Removal of iron from chelant solutions
US4443268A (en) * 1981-11-12 1984-04-17 The Dow Chemical Company Process for removing copper and copper oxide encrustations from ferrous surfaces
US4637899A (en) * 1984-01-30 1987-01-20 Dowell Schlumberger Incorporated Corrosion inhibitors for cleaning solutions
US4578162A (en) * 1984-05-29 1986-03-25 The Dow Chemical Company Method for dissolving copper in the presence of iron
US5160631A (en) * 1991-08-05 1992-11-03 Halliburton Company Method for treating chelant solutions to remove metals in solution
US5244000A (en) * 1991-11-13 1993-09-14 Hughes Aircraft Company Method and system for removing contaminants
WO1996009994A1 (en) * 1994-09-26 1996-04-04 E.R. Squibb & Sons, Inc. Stainless steel alkali treatment
US5587025A (en) * 1995-03-22 1996-12-24 Framatome Technologies, Inc. Nuclear steam generator chemical cleaning passivation solution
US6118000A (en) 1996-11-04 2000-09-12 Hydrochem Industrial Services, Inc. Methods for preparing quaternary ammonium salts
US6341612B1 (en) 2000-03-09 2002-01-29 Steris Inc Two compartment container for neutralizing used cleaning solutions
US6550487B1 (en) 2000-03-09 2003-04-22 Steris Inc. Apparatus for removing deposits from enclosed chambers
US6770150B1 (en) 2000-03-09 2004-08-03 Steris Inc. Process for removing deposits from enclosed chambers
WO2004070083A1 (en) * 2003-02-07 2004-08-19 Honda Motor Co., Ltd. Method for passivating stainless steel product and method for producing stainless steel separator for fuel cell
US20050003978A1 (en) 2003-05-28 2005-01-06 Lonza Inc. Quaternary ammonium carbonates and bicarbonates as anticorrosive agents
US20060261312A1 (en) * 2003-05-28 2006-11-23 Lonza Inc. Quaternary ammonium salts containing non-halogen anions as anticorrosive agents
MY148568A (en) 2004-12-09 2013-04-30 Lonza Ag Quaternary ammonium salts as a conversion coating or coating enhancement
CN108914108A (en) * 2013-03-16 2018-11-30 Prc-迪索托国际公司 Metal complex as corrosion inhibitor
CN112853341A (en) * 2020-12-31 2021-05-28 南通赛可特电子有限公司 Cleaning and oxidation resisting process for surface treatment of copper foil of printed circuit board

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095121A (en) * 1960-10-20 1963-06-25 Amchem Prod Chemical feed control system
US3214301A (en) * 1962-01-05 1965-10-26 Allied Res Products Inc Automatic ph control of chemical treating baths
US3248269A (en) * 1962-08-15 1966-04-26 Pfizer & Co C Scale removal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679705A (en) * 2012-05-30 2012-09-19 中宇建材集团有限公司 New surface treatment method of copper product
CN102679705B (en) * 2012-05-30 2014-12-03 中宇建材集团有限公司 New surface treatment method of copper product

Also Published As

Publication number Publication date
US3413160A (en) 1968-11-26
JPS512418B1 (en) 1976-01-26
BE688683A (en) 1967-04-21
DE1521732B2 (en) 1975-05-22
DE1521732A1 (en) 1969-09-18
NL6614093A (en) 1967-04-25

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