SE8505905D0 - PROCEDURE FOR PURIFICATION OF SALTSURA IRON (II) CHLORIDE SOLUTIONS - Google Patents

PROCEDURE FOR PURIFICATION OF SALTSURA IRON (II) CHLORIDE SOLUTIONS

Info

Publication number
SE8505905D0
SE8505905D0 SE8505905A SE8505905A SE8505905D0 SE 8505905 D0 SE8505905 D0 SE 8505905D0 SE 8505905 A SE8505905 A SE 8505905A SE 8505905 A SE8505905 A SE 8505905A SE 8505905 D0 SE8505905 D0 SE 8505905D0
Authority
SE
Sweden
Prior art keywords
iron
precipitate
saltsura
purification
procedure
Prior art date
Application number
SE8505905A
Other languages
Swedish (sv)
Other versions
SE460365B (en
SE8505905L (en
Inventor
H Krivanec
B Wasserbauer
D Gamsriegler
Original Assignee
Andritz Ag Maschf
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 Andritz Ag Maschf filed Critical Andritz Ag Maschf
Publication of SE8505905D0 publication Critical patent/SE8505905D0/en
Publication of SE8505905L publication Critical patent/SE8505905L/en
Publication of SE460365B publication Critical patent/SE460365B/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
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/10—Halides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/007—Wet processes by acid leaching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Silicon Compounds (AREA)
  • Compounds Of Iron (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Aqueous, hydrochloric solutions, which are produced in various processes, for example in the pickling of steel, and which as their main component contain dissolved FeCl2, have the iron removed together with the silica (SiO2) by the iron first being precipitated as Fe(OH)2 from the solutions preferably neutralised with scrap, the precipitate being oxidised in a DC electrolytic cell employing insoluble electrodes without a diaphragm, by the precipitate being allowed to ripen further with stirring, with the addition of a flocculant if required, and the oxidised oxide, together with the entrained silica, being separated by decanting and the precipitate optionally being treated in a filter press. <IMAGE>
SE8505905A 1984-12-17 1985-12-13 PROCEDURE FOR PURIFICATION OF SALTSYRIC Aqueous SOLUTIONS CONTAINING YEARS (II) CHLORIDE FROM SILICON ACID SE460365B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT399184A AT380675B (en) 1984-12-17 1984-12-17 METHOD FOR PURIFYING SALT ACID IRON (II) CHLORIDE SOLUTIONS

Publications (3)

Publication Number Publication Date
SE8505905D0 true SE8505905D0 (en) 1985-12-13
SE8505905L SE8505905L (en) 1986-06-18
SE460365B SE460365B (en) 1989-10-02

Family

ID=3558178

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8505905A SE460365B (en) 1984-12-17 1985-12-13 PROCEDURE FOR PURIFICATION OF SALTSYRIC Aqueous SOLUTIONS CONTAINING YEARS (II) CHLORIDE FROM SILICON ACID

Country Status (4)

Country Link
AT (1) AT380675B (en)
BE (1) BE903838A (en)
DE (1) DE3542470A1 (en)
SE (1) SE460365B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
FR2693478B1 (en) * 1992-07-08 1994-10-14 Lorraine Laminage Process for the purification treatment of a spent acid bath for pickling steel substrates.
DE19624023B9 (en) * 1996-06-17 2009-05-20 Verein für Kernverfahrenstechnik und Analytik Rossendorf e.V. Process for the remediation of acidic, iron-containing open cast mining water
ATA118798A (en) * 1998-07-08 1999-10-15 Eurox Eisenoxydproduktions Und METHOD FOR THE BLASTING OF SOLUTIONS CONTAINING METAL CHLORIDE, AND FOR THE PRODUCTION OF METAL OXIDES
AT13601U1 (en) 2012-09-06 2014-04-15 Astec Engineering Gmbh Purification and desiccation of spent acid baths using combined microfiltration techniques
CN114249353B (en) * 2021-12-18 2023-07-25 大连市环境保护有限公司产业废弃物处理厂 Method for regenerating liquid ferrous chloride from waste hydrochloric acid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633872C2 (en) * 1976-07-28 1978-03-30 Preussag Ag Metall, 3380 Goslar Process for the preparation of a watery flux liquor for hot dip galvanizing

Also Published As

Publication number Publication date
AT380675B (en) 1986-06-25
SE460365B (en) 1989-10-02
DE3542470A1 (en) 1986-06-19
BE903838A (en) 1986-04-01
ATA399184A (en) 1985-11-15
DE3542470C2 (en) 1993-01-07
SE8505905L (en) 1986-06-18

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