GB949184A - A process for pickling and passivating hollow metal structures - Google Patents

A process for pickling and passivating hollow metal structures

Info

Publication number
GB949184A
GB949184A GB19608/60A GB1960860A GB949184A GB 949184 A GB949184 A GB 949184A GB 19608/60 A GB19608/60 A GB 19608/60A GB 1960860 A GB1960860 A GB 1960860A GB 949184 A GB949184 A GB 949184A
Authority
GB
United Kingdom
Prior art keywords
solution
draining
stand
replacing
allowed
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
GB19608/60A
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.)
Framalite
Original Assignee
Framalite
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 Framalite filed Critical Framalite
Publication of GB949184A publication Critical patent/GB949184A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Hollow iron or ferrous metal structures, e.g. heat exchanges, boilers, gas generators or storage tanks are pickled and passivated by filling the structure with a pickling solution with complete removal of air therefrom, allowing the solution to remain in the structure, e.g. for 24 to 48 hours, to dissolve oxides and like impurities such as rust, scale or solder flux from the structure walls, removing the solution by directly replacing it with water until the liquid isuing at the outlet is neutral or, at least, has a pH value of 6 without allowing air to contact the inner surfaces of the structure, replacing the rinsing water directly without draining out by a solution which forms soluble complex ions with any Fe(OH)2 floccules suspended in the structure, e.g. containing a tartrate, citrate or malate, and removing these complex ions by further water rinsing without draining replacing the solution until the pH values at the inlet and outlet are the same. A passivating solution, e.g. containing an amine or amide acid bichromate, may then be introduced, again without draining out, and allowed to stand or recycled, e.g. for 1 to 24 hours, prior to finally draining out. Each new solution or rinsing water may be substituted for the preceding one by introducing it at the top whilst draining at the bottom of the structure. The pickling solution may be allowed to stand in the structure or continuously circulated or alternatively allowed to stand and circulated. After treatment, the structure may be exhausted by suction applied at the bottom after sealing all apertures, and dried by introducing a current of dry oxygen at the bottom. Specification 647,782 is referred to.
GB19608/60A 1959-06-04 1960-06-02 A process for pickling and passivating hollow metal structures Expired GB949184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR796578A FR1236531A (en) 1959-06-04 1959-06-04 Process for pickling and passivation of large closed assemblies

Publications (1)

Publication Number Publication Date
GB949184A true GB949184A (en) 1964-02-12

Family

ID=8715619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19608/60A Expired GB949184A (en) 1959-06-04 1960-06-02 A process for pickling and passivating hollow metal structures

Country Status (8)

Country Link
US (1) US3132975A (en)
BE (1) BE591583A (en)
CH (1) CH394760A (en)
DE (1) DE1155652C2 (en)
FR (1) FR1236531A (en)
GB (1) GB949184A (en)
LU (1) LU38770A1 (en)
NL (2) NL252277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105021768A (en) * 2014-04-15 2015-11-04 上海梅山钢铁股份有限公司 Steel plate high-temperature acid washing test apparatus and use method thereof

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL282799A (en) * 1961-09-13
DE1216066B (en) * 1963-01-29 1966-05-05 Henkel & Cie Gmbh Process for the treatment of degreased metal surfaces stained with an acidic solution before enamelling
US3416962A (en) * 1964-08-05 1968-12-17 Sperry Rand Corp Preparing etched substances for vacuum deposition of a metal thereon
ZA656244B (en) * 1964-11-27
US3522093A (en) * 1967-02-27 1970-07-28 Chem Cleaning & Equipment Serv Processes of cleaning and passivating reactor equipment
US4045253A (en) * 1976-03-15 1977-08-30 Halliburton Company Passivating metal surfaces
FR2560893B1 (en) * 1984-03-09 1986-09-12 Snecma CHEMICAL STRIPPING BATH FOR HOT-RESISTANT ALLOY PARTS
JP2987754B2 (en) * 1996-01-17 1999-12-06 岩谷産業株式会社 Passivation treatment method for high purity gas in piping
FR2825103B1 (en) * 2001-05-28 2003-09-19 Genoway CLONING VECTORS FOR APPROVED RECOMBINATION AND METHOD OF USING THE SAME
US6706669B2 (en) 2001-07-13 2004-03-16 Exxonmobil Research And Engineering Company Method for inhibiting corrosion using phosphorous acid
US20080083435A1 (en) * 2006-10-06 2008-04-10 Myers Craig W Method of inhibiting corrosion in storage and transport vessels
EP2132281B1 (en) 2007-03-30 2019-06-12 Dorf Ketal Chemicals (I) Private Limited High temperature naphthenic acid corrosion inhibition using organophosphorous sulphur compounds and combinations thereof
CA2682656C (en) 2007-04-04 2015-05-26 Dorf Ketal Chemicals (I) Private Limited Naphthenic acid corrosion inhibition using new synergetic combination of phosphorus compounds
CN104711580A (en) 2007-09-14 2015-06-17 多尔夫凯塔尔化学制品（I）私人有限公司 A novel additive for naphthenic acid corrosion inhibition and method of using the same
MY160207A (en) * 2008-08-26 2017-02-28 Dorf Ketal Chemicals (I) Private Ltd An effective novel polymeric additive for inhibiting napthenic acid corrosion and method of using the same
CN102197163B (en) * 2008-08-26 2014-03-05 多尔夫凯塔尔化学制品（I）私人有限公司 New additive for inhibiting acid corrosion and method of using new additive
EP2419491B1 (en) 2009-04-15 2019-10-09 Dorf Ketal Chemicals (I) Private Limited Method of using an effective non - polymeric and non - fouling additive for inhibiting high - temperature naphthenic acid corrosion
CN103014729A (en) * 2012-12-06 2013-04-03 启东市海鹰阀门有限公司 Detergent for radiator of automobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428364A (en) * 1944-09-21 1947-10-07 Frager Max Process for providing rust free surfaces on ferrous metal parts
US2524757A (en) * 1945-05-17 1950-10-10 Dow Chemical Co Cleaning scaled vessels
US2907689A (en) * 1949-10-24 1959-10-06 Calvin P Kidder Method of controlling corrosion in a neutronic reactor
DE1001560B (en) * 1952-02-25 1957-01-24 Hivolin GmbH Mulheim/Ruhr Method and device for the treatment of Hohlkoerpersystemen with fluids, z. B. for pickling boiler systems
US2773623A (en) * 1954-06-01 1956-12-11 Heintz Mfg Co Corrosion resistant coated steel members and method of making
DE1053277B (en) * 1957-11-30 1959-03-19 Hivolin G M B H Process for the internal treatment of hollow bodies with fluids, such. B. for pickling
US3063866A (en) * 1960-12-02 1962-11-13 Gen Mills Inc Method of forming bismuth whiskers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105021768A (en) * 2014-04-15 2015-11-04 上海梅山钢铁股份有限公司 Steel plate high-temperature acid washing test apparatus and use method thereof

Also Published As

Publication number Publication date
BE591583A (en) 1960-12-05
NL131125C (en)
NL252277A (en)
FR1236531A (en) 1960-07-22
DE1155652B (en) 1963-10-10
CH394760A (en) 1965-06-30
DE1155652C2 (en) 1974-11-21
US3132975A (en) 1964-05-12
LU38770A1 (en) 1960-12-03

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