DE1621549B2 - Verfahren zur regenerierung gebrauchter eisensulfathaltiger beizen fuer siliziumstaehle - Google Patents

Verfahren zur regenerierung gebrauchter eisensulfathaltiger beizen fuer siliziumstaehle

Info

Publication number
DE1621549B2
DE1621549B2 DE19661621549 DE1621549A DE1621549B2 DE 1621549 B2 DE1621549 B2 DE 1621549B2 DE 19661621549 DE19661621549 DE 19661621549 DE 1621549 A DE1621549 A DE 1621549A DE 1621549 B2 DE1621549 B2 DE 1621549B2
Authority
DE
Germany
Prior art keywords
regeneration
silicon steels
iron sulfate
sticks
stain
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.)
Granted
Application number
DE19661621549
Other languages
German (de)
English (en)
Other versions
DE1621549C3 (US08066781-20111129-C00013.png
DE1621549A1 (de
Inventor
Henri Marcel St.-Chely dApcher Lozere Robert (Frankreich)
Original Assignee
Creusot-Loire, Paris
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 Creusot-Loire, Paris filed Critical Creusot-Loire, Paris
Publication of DE1621549A1 publication Critical patent/DE1621549A1/de
Publication of DE1621549B2 publication Critical patent/DE1621549B2/de
Application granted granted Critical
Publication of DE1621549C3 publication Critical patent/DE1621549C3/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Silicon Compounds (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
DE19661621549 1965-02-09 1966-02-08 Verfahren zur regenerierung gebrauchter eisensulfathaltiger beizen fuer siliziumstaehle Granted DE1621549B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR4842A FR1432661A (fr) 1965-02-09 1965-02-09 Perfectionnements apportés au traitement des bains de décapage des aciers au silicium

Publications (3)

Publication Number Publication Date
DE1621549A1 DE1621549A1 (de) 1971-06-03
DE1621549B2 true DE1621549B2 (de) 1973-03-01
DE1621549C3 DE1621549C3 (US08066781-20111129-C00013.png) 1973-10-04

Family

ID=8570430

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661621549 Granted DE1621549B2 (de) 1965-02-09 1966-02-08 Verfahren zur regenerierung gebrauchter eisensulfathaltiger beizen fuer siliziumstaehle

Country Status (7)

Country Link
US (1) US3499735A (US08066781-20111129-C00013.png)
AT (1) AT265813B (US08066781-20111129-C00013.png)
BE (1) BE676246A (US08066781-20111129-C00013.png)
DE (1) DE1621549B2 (US08066781-20111129-C00013.png)
ES (1) ES322764A1 (US08066781-20111129-C00013.png)
FR (1) FR1432661A (US08066781-20111129-C00013.png)
GB (1) GB1083512A (US08066781-20111129-C00013.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141034B1 (en) * 1983-11-08 1988-10-19 Chemirite, Ltd. Method for removing a silicic compound from the waste liquor of steel pickling
FR2663344B1 (fr) * 1990-06-15 1992-10-09 Lorraine Laminage Procede de separation de composes siliciques des bains de decapage et installation pour sa mise en óoeuvre.
FR2663860B1 (fr) * 1990-07-02 1994-03-04 Sollac Filtre utilisable pour la separation des composes siliciques contenus dans un bain acide, procede et dispositif pour separarer lesdits composes siliciques.
FR2670508B1 (fr) * 1990-12-13 1994-08-12 Siderurgie Fse Inst Rech Procede de separation des composes de silicium contenus dans un bain de decapage chlorhydrique de pieces notamment des toles d'acier.
DE4116353C1 (en) * 1991-05-18 1992-11-05 Keramchemie Gmbh, 5433 Siershahn, De Removal of amorphous or partially dissolved silicon from aq. treatment soln. - by subjecting soln. collected in vessel to pressure-driven membrane filtration and returning silicon-free filtrate to treatment soln.
US8128754B2 (en) * 2008-11-14 2012-03-06 Ak Steel Properties, Inc. Ferric pickling of silicon steel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515799A (en) * 1922-09-05 1924-11-18 Little Inc A Method of treating spent pickling liquors
US1854628A (en) * 1929-09-26 1932-04-19 Allegheny Steel Co Treatment of steel sheets
US2017773A (en) * 1932-08-02 1935-10-15 Noah B Smith Process of recovering waste pickling solutions
US2322134A (en) * 1939-09-29 1943-06-15 Mellon Inst Of Ind Res Process for recovery of by-products from waste pickle liquors
GB623446A (en) * 1946-06-06 1949-05-18 Norman Swindin Improvements in and relating to processes and apparatus for the regeneration of spent iron and steel acid pickle liquors

Also Published As

Publication number Publication date
AT265813B (de) 1968-10-25
DE1621549C3 (US08066781-20111129-C00013.png) 1973-10-04
BE676246A (US08066781-20111129-C00013.png) 1966-06-16
US3499735A (en) 1970-03-10
ES322764A1 (es) 1966-11-16
FR1432661A (fr) 1966-03-25
DE1621549A1 (de) 1971-06-03
GB1083512A (en) 1967-09-13

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee