GB1129824A - Process for producing clean surfaces of iron and steel - Google Patents

Process for producing clean surfaces of iron and steel

Info

Publication number
GB1129824A
GB1129824A GB701666A GB701666A GB1129824A GB 1129824 A GB1129824 A GB 1129824A GB 701666 A GB701666 A GB 701666A GB 701666 A GB701666 A GB 701666A GB 1129824 A GB1129824 A GB 1129824A
Authority
GB
United Kingdom
Prior art keywords
iron
solution
steel
pickling
passivating
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
GB701666A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1129824A publication Critical patent/GB1129824A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
    • 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
    • C23G1/08—Iron or steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

1,129,824. Pickling and passivating iron and steel. FARBWERKE HOECHST, A.G. Feb.17, 1966. [Feb.17,1965] No. 7016/66. Headings C7E and C7U. Iron and steel surfaces are cleaned by (a) alkaline degreasing (b) acid pickling (c) neutralizing (d) pickling and (e) passivating. A hydroxyethylated polyoxypropylene compound of M.W. 1900- 3,100 and containing 60-90% of polyoxypropylene is incorporated in acid pickling solution (b). The steps (c) and (d) may be combined by using a single solution of pH 7-9 containing one or more condensed phosphates e.g. pentasodium tripolyphosphate and tetrasodium pyrophosphate. The preferred concentration of hydroxyethylated polyoxypropylene in solution (b) is not less than 0À03 g.p.l. The passivating step (e) may be effected with a solution of sodium nitrite.
GB701666A 1965-02-17 1966-02-17 Process for producing clean surfaces of iron and steel Expired GB1129824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0045266 1965-02-17

Publications (1)

Publication Number Publication Date
GB1129824A true GB1129824A (en) 1968-10-09

Family

ID=7100413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB701666A Expired GB1129824A (en) 1965-02-17 1966-02-17 Process for producing clean surfaces of iron and steel

Country Status (8)

Country Link
AT (1) AT259969B (en)
BE (1) BE676647A (en)
CH (1) CH482032A (en)
DE (1) DE1546123A1 (en)
DK (1) DK119689B (en)
GB (1) GB1129824A (en)
NL (1) NL6601445A (en)
NO (1) NO115771B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288190A (en) * 1994-04-08 1995-10-11 Wonder Wheels Cleaning composition containing hydrochloric acid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101629A1 (en) 2013-02-19 2014-08-21 Wolfgang DAMBACHER Apparatus and method for surface treatment of workpieces
CN109306493B (en) * 2017-07-26 2020-07-31 中核嘉华设备制造股份公司 UF (ultra filtration factor)6Acid pickling passivation surface treatment process in storage and transportation container processing process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288190A (en) * 1994-04-08 1995-10-11 Wonder Wheels Cleaning composition containing hydrochloric acid

Also Published As

Publication number Publication date
AT259969B (en) 1968-02-12
CH482032A (en) 1969-11-30
NL6601445A (en) 1966-08-18
DK119689B (en) 1971-02-08
NO115771B (en) 1968-11-25
BE676647A (en) 1966-08-17
DE1546123A1 (en) 1970-04-30

Similar Documents

Publication Publication Date Title
GB1140856A (en) Method and composition for chemically polishing metals
GB1042122A (en) Process for the pre-treatment of metal surfaces before enamelling
GB1354217A (en) Processes and compositions for the treatment of ferrous and zinc surfaces
GB1129824A (en) Process for producing clean surfaces of iron and steel
ES8608589A1 (en) Process for sealing anodised aluminium.
GB1493582A (en) Method and composition for cleaning metals
GB1304521A (en)
GB1425056A (en) Cleaning composition and preparation and use thereof
GB1155306A (en) Process for De-Scaling Metal Articles.
ATE180239T1 (en) METHOD FOR STABILIZING ALKALINE PERCARBONATE PARTICLES, PARTICLES OBTAINED BY THE METHOD, AND THEIR USE IN WASHING AND BLEACHING COMPOSITIONS
FR2352877B1 (en)
SE8203084L (en) COMPOSITION FOR ELECTROPLETING OF RUTENIUM METAL ON SURFACE
ES366832A1 (en) Alkaline cleansing composition
GB1413649A (en) Accelerating the cleaning of metal surfaces by means of acid cleaning baths
FR2300796B1 (en)
GB1233128A (en)
ES407645A1 (en) Pretreatment for cold deformation of steel
GB1423064A (en)
ES438342A1 (en) Process for improving the stability and shaping of anhydrous sodium metasilicate, and the compositions containing same, and the resulting products
FR2120550A5 (en) Neutralisn of acid waste water - using lime
FR2289628A1 (en) PROCESS FOR CLEANING AND PHOSPHATE METAL SURFACES
GB1125656A (en) On-stream cleaning of wood chip digesters
GB684204A (en) Process for the production of a surface layer on iron or steel
GB544640A (en) Improvements in or relating to the production of phosphate coatings on ferrous metal surfaces
ES442528A1 (en) Production of pure alkali metal phosphate solutions from wet-processed phosphoric acid