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NO20030410L - Procedure for operation of an aluminum stain bath - Google Patents

Procedure for operation of an aluminum stain bath

Info

Publication number
NO20030410L
NO20030410L NO20030410A NO20030410A NO20030410L NO 20030410 L NO20030410 L NO 20030410L NO 20030410 A NO20030410 A NO 20030410A NO 20030410 A NO20030410 A NO 20030410A NO 20030410 L NO20030410 L NO 20030410L
Authority
NO
Norway
Prior art keywords
procedure
pickling
pickling liquor
caustic soda
aluminium
Prior art date
Application number
NO20030410A
Other languages
Norwegian (no)
Other versions
NO334137B1 (en
NO20030410D0 (en
Inventor
Heiko Weber
Original Assignee
Heiko Weber
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 Heiko Weber filed Critical Heiko Weber
Publication of NO20030410D0 publication Critical patent/NO20030410D0/en
Publication of NO20030410L publication Critical patent/NO20030410L/en
Publication of NO334137B1 publication Critical patent/NO334137B1/en

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
    • 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
    • C23G1/36—Regeneration of waste pickling liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • 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
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/32—Alkaline compositions
    • C23F1/36—Alkaline compositions for etching aluminium or alloys thereof
    • 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
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Coating With Molten Metal (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The invention relates to a method for operating a pickling bath (1), based on caustic soda at elevated temperature, in particular for cleaning tools (3) in aluminium plants, in which the pickling liquor (2) is enriched with aluminium by using caustic soda and is replaced after a given period. The composition of the renewed pickling liquor (2) and the residence time of the pickling liquor (2) are selected such that the product of the method is a sodium aluminate solution (9), which may be used for the precipitation of phosphates in a treatment works.
NO20030410A 2001-05-28 2003-01-27 Procedure for operating a stain bath for aluminum NO334137B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125933A DE10125933A1 (en) 2001-05-28 2001-05-28 Process for operating an aluminum pickling bath
PCT/EP2002/005721 WO2002097163A1 (en) 2001-05-28 2002-05-24 Method for operating an aluminium pickling bath

Publications (3)

Publication Number Publication Date
NO20030410D0 NO20030410D0 (en) 2003-01-27
NO20030410L true NO20030410L (en) 2003-02-11
NO334137B1 NO334137B1 (en) 2013-12-16

Family

ID=7686387

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20030410A NO334137B1 (en) 2001-05-28 2003-01-27 Procedure for operating a stain bath for aluminum

Country Status (6)

Country Link
EP (1) EP1392888B1 (en)
AT (1) ATE311484T1 (en)
DE (2) DE10125933A1 (en)
NO (1) NO334137B1 (en)
WO (1) WO2002097163A1 (en)
ZA (1) ZA200300705B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019731A1 (en) * 2012-10-09 2014-04-10 Overlack GmbH Coating surfaces of metallic elements with conversion layer in passivation zone with zirconium ion- or titanium ion-containing solution, comprises compensating fluid loss in passivation zone by supply of deionized water from first zone
GR1009539B (en) * 2018-04-03 2019-06-03 Νικολαος Κωνσταντινου Νταϊλιανης Method and simple equipment for the recyclig of alkaline waste produced by aluminium extrusion industries - production of useful flocculants
CN116425184A (en) * 2023-05-23 2023-07-14 中铝郑州有色金属研究院有限公司 Method for reducing aluminum fluoride consumption in aluminum electrolysis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421849A1 (en) * 1978-04-05 1979-11-02 Wajc Samuel INTEGRATED PROCESS FOR THE TREATMENT OF RESIDUAL WATER FROM ANODIZATION WORKSHOPS AND INSTALLATION USED FOR THIS PROCESS
US5091046A (en) * 1990-12-31 1992-02-25 Hunter Robert F Caustic etching of aluminum with matte finish and low waste capability
JPH09323163A (en) * 1996-05-31 1997-12-16 Sintokogio Ltd Method for removing coating agent on porous metallic mold for casting

Also Published As

Publication number Publication date
NO334137B1 (en) 2013-12-16
DE10125933A1 (en) 2002-12-05
EP1392888A1 (en) 2004-03-03
WO2002097163A1 (en) 2002-12-05
ATE311484T1 (en) 2005-12-15
DE50205119D1 (en) 2006-01-05
NO20030410D0 (en) 2003-01-27
ZA200300705B (en) 2004-04-21
EP1392888B1 (en) 2005-11-30

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Legal Events

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