WO1991014019A3 - Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen - Google Patents

Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen Download PDF

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Publication number
WO1991014019A3
WO1991014019A3 PCT/EP1991/000491 EP9100491W WO9114019A3 WO 1991014019 A3 WO1991014019 A3 WO 1991014019A3 EP 9100491 W EP9100491 W EP 9100491W WO 9114019 A3 WO9114019 A3 WO 9114019A3
Authority
WO
WIPO (PCT)
Prior art keywords
pickling
aluminium
pickling bath
alkaline solutions
temperature
Prior art date
Application number
PCT/EP1991/000491
Other languages
English (en)
French (fr)
Other versions
WO1991014019A2 (de
Inventor
Dieter Brodalla
Roland Fransson
Herbert Breunig
Michael Ferner
Original Assignee
Gartner & Co J
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 Gartner & Co J filed Critical Gartner & Co J
Priority to JP91505740A priority Critical patent/JPH05505852A/ja
Priority to DE59103815T priority patent/DE59103815D1/de
Priority to EP91906096A priority patent/EP0519987B1/de
Publication of WO1991014019A2 publication Critical patent/WO1991014019A2/de
Publication of WO1991014019A3 publication Critical patent/WO1991014019A3/de

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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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Es wird ein Verfahren zum Regenerieren von alkalihaltigen Aluminiumbeizlösungen vorgestellt, wobei Aluminiumhydroxid zurückgewonnen wird. Eine Beizlösung enthaltend Alkalihydroxid, Aluminat sowie einen Komplexbildner und weitere Additive wird aus einem Beizbad in eine Reaktorstrecke überführt, die aus mindestens einem Reaktor besteht und dort Aluminium als Aluminiumhydroxid ausgefällt. Das Beizbad befindet sich auf einer höheren Temperatur als die Reaktorstrecke. Das Verfahren wird so betrieben, daß die Konzentration an Aluminat, Alkali und Gluconat sowie die Temperatur im Beizbad einerseits und das Temperaturgefälle vom Beizbad zur Reaktorstrecke andererseits so eingestellt wird, daß die Beizlösung im Beizbad bezüglich der Ausfällung von Aluminiumhydroxid untersättigt oder metastabil übersättigt, in der Reaktionsstrecke jedoch instabil übersättigt ist. Weiter wird eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens offenbart.
PCT/EP1991/000491 1990-03-15 1991-03-15 Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen WO1991014019A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP91505740A JPH05505852A (ja) 1990-03-15 1991-03-15 アルミニウムをピックリングするためのアルカリ性溶液の再生法及びその装置
DE59103815T DE59103815D1 (de) 1990-03-15 1991-03-15 Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen.
EP91906096A EP0519987B1 (de) 1990-03-15 1991-03-15 Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008379A DE4008379A1 (de) 1990-03-15 1990-03-15 Verfahren und anlage zum regenerieren von alkalihaltigen aluminiumbeizloesungen
DEP4008379.9 1990-03-15

Publications (2)

Publication Number Publication Date
WO1991014019A2 WO1991014019A2 (de) 1991-09-19
WO1991014019A3 true WO1991014019A3 (de) 1991-10-31

Family

ID=6402324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000491 WO1991014019A2 (de) 1990-03-15 1991-03-15 Verfahren und vorrichtung zum regenerieren von alkalihaltigen aluminiumbeizlösungen

Country Status (5)

Country Link
EP (1) EP0519987B1 (de)
JP (1) JPH05505852A (de)
AT (1) ATE115197T1 (de)
DE (2) DE4008379A1 (de)
WO (1) WO1991014019A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5656489A (en) * 1992-07-22 1997-08-12 E. I. Du Pont De Nemours And Company Method for the remediation of organoleads especially tetraethyllead (TEL) in contaminated natural media
DE102008001577A1 (de) * 2008-05-06 2009-11-12 Wacker Chemie Ag Verfahren zur Hydrolyse von festen Metallsalzen mit wässrigen Salzlösungen
EP2352859B1 (de) * 2008-11-03 2018-06-27 Thomas König Beizverfahren und beizanlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975041A (en) * 1956-08-06 1961-03-14 Purex Corp Ltd Method for etching aluminum and aluminum alloy bodies
FR2167243A1 (en) * 1972-01-11 1973-08-24 Maltret Georges Regenerating etch bath - for etching aluminium prior to anodising
US3909405A (en) * 1972-04-07 1975-09-30 Dai Doh Plant Engineering Corp Method for treating alkaline waste streams containing aluminum dissolved therein
US4136026A (en) * 1977-11-23 1979-01-23 Aluminum Company Of America Caustic solution having controlled dissolved aluminum content
US4826605A (en) * 1986-11-03 1989-05-02 Caspian International, Inc. Process for depleted chemical milling solutions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE43977C (de) * 1892-01-31 1888-08-03 Dr. K. J. BAYER in Dorf Tentelewa bei St. Petersburg Verfahren zur darstellung von thonerdehydrat und alkalialuminat
DE2433141A1 (de) * 1974-07-10 1976-01-29 Kannegiesser H Kg Rotationskoerper zur herstellung und/ oder behandlung von bahnen, stuecken, folien und verbundmaterialien
JPS5810895B2 (ja) * 1979-07-16 1983-02-28 東京計装株式会社 デ−タ収集回路
EP0157190B1 (de) * 1984-03-16 1990-07-18 Prof. Dr. E. Plattner Beizverfahren für Aluminium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975041A (en) * 1956-08-06 1961-03-14 Purex Corp Ltd Method for etching aluminum and aluminum alloy bodies
FR2167243A1 (en) * 1972-01-11 1973-08-24 Maltret Georges Regenerating etch bath - for etching aluminium prior to anodising
US3909405A (en) * 1972-04-07 1975-09-30 Dai Doh Plant Engineering Corp Method for treating alkaline waste streams containing aluminum dissolved therein
US4136026A (en) * 1977-11-23 1979-01-23 Aluminum Company Of America Caustic solution having controlled dissolved aluminum content
US4826605A (en) * 1986-11-03 1989-05-02 Caspian International, Inc. Process for depleted chemical milling solutions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts, Band 84, 1979, (Columbus, Ohio, US), siehe Seite 301 *

Also Published As

Publication number Publication date
EP0519987B1 (de) 1994-12-07
DE4008379A1 (de) 1991-09-19
ATE115197T1 (de) 1994-12-15
DE59103815D1 (de) 1995-01-19
EP0519987A1 (de) 1992-12-30
WO1991014019A2 (de) 1991-09-19
JPH05505852A (ja) 1993-08-26
DE4008379C2 (de) 1992-01-16

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