EP4056737A4 - Ionic liquid for pickling stainless steel and method for pickling stainless steel by using same - Google Patents

Ionic liquid for pickling stainless steel and method for pickling stainless steel by using same Download PDF

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Publication number
EP4056737A4
EP4056737A4 EP20889474.1A EP20889474A EP4056737A4 EP 4056737 A4 EP4056737 A4 EP 4056737A4 EP 20889474 A EP20889474 A EP 20889474A EP 4056737 A4 EP4056737 A4 EP 4056737A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
pickling stainless
same
ionic liquid
pickling
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.)
Pending
Application number
EP20889474.1A
Other languages
German (de)
French (fr)
Other versions
EP4056737A1 (en
Inventor
Jin-Suk Kim
Jaejoon Lee
Byungkwon KIM
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4056737A1 publication Critical patent/EP4056737A1/en
Publication of EP4056737A4 publication Critical patent/EP4056737A4/en
Pending legal-status Critical Current

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
    • C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/12—Pickling; Descaling in melts
    • C25F1/14—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
    • C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
    • 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
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • 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
    • C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
    • C23G1/32—Heavy metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP20889474.1A 2019-11-21 2020-10-16 Ionic liquid for pickling stainless steel and method for pickling stainless steel by using same Pending EP4056737A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190150288A KR102300834B1 (en) 2019-11-21 2019-11-21 Ionic liquid for pickling stainless steel and pickling method for stainless steel using the same
PCT/KR2020/014199 WO2021101076A1 (en) 2019-11-21 2020-10-16 Ionic liquid for pickling stainless steel and method for pickling stainless steel by using same

Publications (2)

Publication Number Publication Date
EP4056737A1 EP4056737A1 (en) 2022-09-14
EP4056737A4 true EP4056737A4 (en) 2023-01-11

Family

ID=75981320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20889474.1A Pending EP4056737A4 (en) 2019-11-21 2020-10-16 Ionic liquid for pickling stainless steel and method for pickling stainless steel by using same

Country Status (5)

Country Link
US (1) US20230059039A1 (en)
EP (1) EP4056737A4 (en)
KR (1) KR102300834B1 (en)
CN (1) CN114829682A (en)
WO (1) WO2021101076A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102693618B1 (en) * 2024-01-03 2024-08-12 주식회사 투에이치플러스 Nano-coating construction method of stainless steel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006088737A2 (en) * 2005-02-14 2006-08-24 Small Robert J Semiconductor cleaning
WO2010052123A1 (en) * 2008-11-05 2010-05-14 Henkel Ag & Co. Kgaa Ionic liquid composition for the removal of oxide scale
CN108505066A (en) * 2018-06-27 2018-09-07 东北大学 A kind of method that high-efficiency electrochemical prepares aluminium in ionic liquid

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587369B1 (en) 1985-09-19 1993-01-29 Ugine Gueugnon Sa PROCESS OF ACID STRIPPING OF STAINLESS STEEL PRODUCTS
US5154774A (en) 1985-09-19 1992-10-13 Ugine Aciers De Chatillon Et Gueugnon Process for acid pickling of stainless steel products
DE3937438C2 (en) 1989-02-23 1998-01-29 Wilfried Simmer Steel pickling process
IT1255655B (en) 1992-08-06 1995-11-09 STAINLESS STEEL PICKLING AND PASSIVATION PROCESS WITHOUT THE USE OF NITRIC ACID
JP3213833B2 (en) * 1994-01-31 2001-10-02 ダイソー株式会社 Electrolytic pickling method for stainless steel plate and electrode used for it
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
DE60329501D1 (en) * 2002-09-10 2009-11-12 Nippon Mining Co METAL SEPARATION METHOD AND PRE-TREATMENT METHOD
SG10201402353PA (en) * 2009-06-08 2014-10-30 Basf Se Use of ionic fluids for pretreating plastic surfaces for metallization
KR101342359B1 (en) * 2011-10-31 2013-12-16 이병록 Surface treatment method for nut bore
KR101359098B1 (en) * 2012-07-31 2014-02-12 주식회사 포스코 High speed pickling process for austenitic stainless cold strip
KR101592147B1 (en) * 2015-08-19 2016-02-04 이대석 A method manufacturing an oxide layer of an aluminium substrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006088737A2 (en) * 2005-02-14 2006-08-24 Small Robert J Semiconductor cleaning
WO2010052123A1 (en) * 2008-11-05 2010-05-14 Henkel Ag & Co. Kgaa Ionic liquid composition for the removal of oxide scale
CN108505066A (en) * 2018-06-27 2018-09-07 东北大学 A kind of method that high-efficiency electrochemical prepares aluminium in ionic liquid

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
KIM BYUNG-KWON ET AL: "Application of ionic liquids for metal dissolution and extraction", JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 61, 28 December 2017 (2017-12-28), KOREA, pages 388 - 397, XP093003138, ISSN: 1226-086X, DOI: 10.1016/j.jiec.2017.12.038 *
LEE JUNGEUN ET AL: "Electrochemical Descaling of Metal Oxides from Stainless Steel Using an Ionic Liquid-Acid Solution", ACS OMEGA, vol. 5, no. 25, 19 June 2020 (2020-06-19), US, pages 15709 - 15714, XP093003213, ISSN: 2470-1343, Retrieved from the Internet <URL:http://pubs.acs.org/doi/pdf/10.1021/acsomega.0c02163> [retrieved on 20221129], DOI: 10.1021/acsomega.0c02163 *
See also references of WO2021101076A1 *
VERMA CHANDRABHAN ET AL: "Ionic liquids as green and sustainable corrosion inhibitors for metals and alloys: An overview", JOURNAL OF MOLECULAR LIQUIDS, vol. 233, 2 March 2017 (2017-03-02), pages 403 - 414, XP029975527, ISSN: 0167-7322, DOI: 10.1016/J.MOLLIQ.2017.02.111 *
WHITEHEAD J A ET AL: "Comparative leaching of a sulfidic gold ore in ionic liquid and aqueous acid with thiourea and halides using Fe(III) or HSO"5^- oxidant", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, vol. 98, no. 3-4, 28 May 2009 (2009-05-28), pages 276 - 280, XP026224376, ISSN: 0304-386X, [retrieved on 20090528], DOI: 10.1016/J.HYDROMET.2009.05.012 *

Also Published As

Publication number Publication date
WO2021101076A1 (en) 2021-05-27
KR20210062272A (en) 2021-05-31
US20230059039A1 (en) 2023-02-23
KR102300834B1 (en) 2021-09-13
EP4056737A1 (en) 2022-09-14
CN114829682A (en) 2022-07-29

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