IT1394958B1 - CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS. - Google Patents

CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS.

Info

Publication number
IT1394958B1
IT1394958B1 ITVA2009A000012A ITVA20090012A IT1394958B1 IT 1394958 B1 IT1394958 B1 IT 1394958B1 IT VA2009A000012 A ITVA2009A000012 A IT VA2009A000012A IT VA20090012 A ITVA20090012 A IT VA20090012A IT 1394958 B1 IT1394958 B1 IT 1394958B1
Authority
IT
Italy
Prior art keywords
iron
blends
organic
inorganic acids
oxidation process
Prior art date
Application number
ITVA2009A000012A
Other languages
Italian (it)
Inventor
Marco Zavattoni
Original Assignee
Condoroil Impianti Srl
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 Condoroil Impianti Srl filed Critical Condoroil Impianti Srl
Priority to ITVA2009A000012A priority Critical patent/IT1394958B1/en
Publication of ITVA20090012A1 publication Critical patent/ITVA20090012A1/en
Application granted granted Critical
Publication of IT1394958B1 publication Critical patent/IT1394958B1/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
    • 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
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • 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
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/081—Iron or steel solutions containing H2SO4

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)
ITVA2009A000012A 2009-02-17 2009-02-17 CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS. IT1394958B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITVA2009A000012A IT1394958B1 (en) 2009-02-17 2009-02-17 CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVA2009A000012A IT1394958B1 (en) 2009-02-17 2009-02-17 CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS.

Publications (2)

Publication Number Publication Date
ITVA20090012A1 ITVA20090012A1 (en) 2010-08-18
IT1394958B1 true IT1394958B1 (en) 2012-07-27

Family

ID=41334570

Family Applications (1)

Application Number Title Priority Date Filing Date
ITVA2009A000012A IT1394958B1 (en) 2009-02-17 2009-02-17 CATALYTIC OXIDATION PROCESS OF BIVALENT IRON WITH TRIVALENT IRON IN PICKLING BATHS FOR STAINLESS STEELS BASED ON CHLORIDRIC ACID AND / OR ITS BLENDS WITH OTHER ORGANIC AND INORGANIC ACIDS.

Country Status (1)

Country Link
IT (1) IT1394958B1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922698A (en) * 1957-01-09 1960-01-26 Fettchemie Karl Marx Stadt Veb Oxidation process
GB1143139A (en) * 1966-11-23 1969-02-19 Johnson Matthey Co Ltd Improvements in and relating to the oxidation of ferrous compounds and to the reduction of ferric compounds
US3682592A (en) * 1970-07-20 1972-08-08 Pori Inc Treatment of waste hci pickle liquor
US3928529A (en) * 1971-08-13 1975-12-23 Union Carbide Corp Process for recovering HCl and Fe{hd 2{b O{HD 3 {L from pickle liquor
US4248851A (en) * 1978-12-11 1981-02-03 Kovacs Geza L Promoted oxidation of aqueous ferrous chloride solution
DE69612957T2 (en) * 1996-03-14 2001-09-06 Condoroil Impianti S R L Pickling of stainless steel with continuous catalytic oxidation of the pickling solution
IT1297076B1 (en) * 1997-11-24 1999-08-03 Acciai Speciali Terni Spa METHOD FOR PICKLING OF STEEL PRODUCTS
IT1312556B1 (en) * 1999-05-03 2002-04-22 Henkel Kgaa STAINLESS STEEL PICKLING PROCESS IN THE ABSENCE OF ACIDONITRICO AND IN THE PRESENCE OF CHLORIDE IONS
EP1552038B1 (en) * 2002-08-30 2007-08-01 Henkel Kommanditgesellschaft auf Aktien An economic method for restoring the oxidation potential of a pickling solution

Also Published As

Publication number Publication date
ITVA20090012A1 (en) 2010-08-18

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