EP0032886B1 - A method of regenerating pickling solutions - Google Patents

A method of regenerating pickling solutions Download PDF

Info

Publication number
EP0032886B1
EP0032886B1 EP81850009A EP81850009A EP0032886B1 EP 0032886 B1 EP0032886 B1 EP 0032886B1 EP 81850009 A EP81850009 A EP 81850009A EP 81850009 A EP81850009 A EP 81850009A EP 0032886 B1 EP0032886 B1 EP 0032886B1
Authority
EP
European Patent Office
Prior art keywords
solution
pickling
acid
iron
bath
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
EP81850009A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0032886A1 (en
Inventor
Bo Gustaf Valter Hedenäs
Rune John Valdemar Niklasson
Kerstin Severina Holmkvist
Peter Emanuel Nobel
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.)
Boliden AB
Original Assignee
Boliden AB
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 Boliden AB filed Critical Boliden AB
Priority to AT81850009T priority Critical patent/ATE7050T1/de
Publication of EP0032886A1 publication Critical patent/EP0032886A1/en
Application granted granted Critical
Publication of EP0032886B1 publication Critical patent/EP0032886B1/en
Expired legal-status Critical Current

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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

Definitions

  • the regeneration method can be carried out batchwise, whereat a major portion of a consumed pickling bath is removed and subjected to the aforedescribed stepwise treatment process.
  • the regeneration process can also be carried out semi-continuously or continuously, whereat minor portions of the bath or a continuous flow of bath solution are withdrawn and processed in accordance with the above. In this way variations in concentration during the pickling process are limited or completely eliminated.

Landscapes

  • 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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Television Signal Processing For Recording (AREA)
EP81850009A 1980-01-18 1981-01-16 A method of regenerating pickling solutions Expired EP0032886B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81850009T ATE7050T1 (de) 1980-01-18 1981-01-16 Verfahren zur regenerierung von beizloesungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8000444 1980-01-18
SE8000444 1980-01-18

Publications (2)

Publication Number Publication Date
EP0032886A1 EP0032886A1 (en) 1981-07-29
EP0032886B1 true EP0032886B1 (en) 1984-04-11

Family

ID=20340024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81850009A Expired EP0032886B1 (en) 1980-01-18 1981-01-16 A method of regenerating pickling solutions

Country Status (6)

Country Link
EP (1) EP0032886B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS56501886A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE7050T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3163015D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI68668C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1981002026A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422284A1 (de) * 1983-08-17 1985-03-07 Georg Fischer AG, Schaffhausen, CH, Niederlassung: Georg Fischer AG, 7700 Singen Verbindungsglied, insbesondere pleuel oder schaekel
SE452481B (sv) * 1985-03-19 1987-11-30 Korrosionsforskning Ab Forfarande for regenerering av betbad samt regenererbar losning for betning av jern- och stalforemal
NL9302035A (nl) * 1993-11-24 1995-06-16 Piet De Vries Beitswerkwijze en een inrichting daarvoor.
US5591527A (en) * 1994-11-02 1997-01-07 Minnesota Mining And Manufacturing Company Optical security articles and methods for making same
US20020005210A1 (en) * 2000-01-05 2002-01-17 Olsen Douglas R. Regenerating spent pickling liquor
ES2291576T5 (es) * 2003-10-06 2012-05-17 Kerr-Mcgee Pigments Gmbh Procedimiento para la regeneración de ácido sulfúrico usado contaminado con hierro
CN103014737A (zh) * 2011-09-22 2013-04-03 河南红日锂能源科技有限公司 一种冷轧钢酸洗废酸处理方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU152603A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1900-01-01
US1279331A (en) * 1918-05-11 1918-09-17 James H Gravell Pickling iron and steel.
US1589610A (en) * 1925-07-08 1926-06-22 American Copperas Company Method of reclaiming spent pickling solutions
DE561514C (de) * 1929-10-22 1932-10-14 Ferdinand Fraensemeier Verfahren zur Behandlung schwefelsaurer Eisenbeizablaugen mit Gewinnung von wasserarmem Eisensulfat
FR723484A (fr) * 1931-08-03 1932-04-09 Zahn & Co G M B H Procédé d'utilisation, en cycle continu, des lessives de décapage à acide sulfurique avec récupération de l'acide sulfurique libre des solutions de décapage finales
US2118802A (en) * 1936-01-30 1938-05-31 Zahn & Co G M B H Method of conserving pickling liquor
US2155854A (en) * 1937-05-26 1939-04-25 American Rolling Mill Co Pickling process
US2559445A (en) * 1946-12-12 1951-07-03 Union Switch & Signal Co Method for removing scale from steel
BE483353A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1947-06-25
BE518181A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1952-03-13
DE1124781B (de) * 1958-03-31 1962-03-01 Peter Niedner Dipl Ing Verfahren zum Aufarbeiten von schwefelsauren Eisenbeizlaugen
AT247104B (de) * 1963-09-02 1966-05-25 Othmar Ing Ruthner Verfahren zum Regenerieren salzsaurer Eisenbeizen
GB1102463A (en) * 1963-12-13 1968-02-07 Molbros Ltd Improvements in or relating to a process for the treatment of spent acid liquors
DE1621580A1 (de) * 1966-07-14 1971-05-13 Gewerk Keramchemie Verfahren und Vorrichtung zur kontinuierlichen Ausscheidung des Eisens aus schwefelsauren Beizbaedern
US3635664A (en) * 1969-08-20 1972-01-18 Daido Chem Eng Corp REGENERATION OF HYDROCHLORIC ACID PICKLING WASTE BY H{11 SO{11 {0 ADDITION, DISTILLATION AND FeSO{11 {0 Precipitation
DE2209954A1 (de) * 1972-03-02 1973-09-06 Helmut Babbel Verfahren und vorrichtung zur aufbereitung einer abfallbeize

Also Published As

Publication number Publication date
DE3163015D1 (en) 1984-05-17
FI68668C (fi) 1985-10-10
WO1981002026A1 (en) 1981-07-23
FI812817L (fi) 1981-09-10
ATE7050T1 (de) 1984-04-15
FI68668B (fi) 1985-06-28
EP0032886A1 (en) 1981-07-29
JPS56501886A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-12-24

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