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SE9402168L - Pickling procedure - Google Patents

Pickling procedure

Info

Publication number
SE9402168L
SE9402168L SE9402168A SE9402168A SE9402168L SE 9402168 L SE9402168 L SE 9402168L SE 9402168 A SE9402168 A SE 9402168A SE 9402168 A SE9402168 A SE 9402168A SE 9402168 L SE9402168 L SE 9402168L
Authority
SE
Sweden
Prior art keywords
pickling
pickling agent
agents
agent
optionally
Prior art date
Application number
SE9402168A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE504733C2 (en
SE9402168D0 (en
Inventor
Thorsten Andersson
Original Assignee
Ta Chemistry 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 Ta Chemistry Ab filed Critical Ta Chemistry Ab
Priority to SE9402168A priority Critical patent/SE504733C2/en
Publication of SE9402168D0 publication Critical patent/SE9402168D0/en
Priority to AU27605/95A priority patent/AU2760595A/en
Priority to PCT/SE1995/000748 priority patent/WO1995035397A1/en
Publication of SE9402168L publication Critical patent/SE9402168L/en
Publication of SE504733C2 publication Critical patent/SE504733C2/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
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF
    • 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
    • C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes

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)

Abstract

This invention is related to a process for pickling metals, especially rust resistant steel materials, preferably for removing mill scale and other oxide layers, which is characterized in that the metal is brought into contact with a pickling agent comprising, in aqueous solution, in per cent by weight: H2SO4 5-35, H3PO4 5-35, fluoride ion (HF) at least 0.1, Fe<3+> at least 0.4, optionally other in pickling agents commonly used additives, such as surface active agents H2O up to the rest (up to 100 %) and additionally optionally thickening agents and fillers. The invention is also related to a pickling agent for said process and a concentrate for preparing said pickling agent.
SE9402168A 1994-06-17 1994-06-17 Pickling procedure SE504733C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9402168A SE504733C2 (en) 1994-06-17 1994-06-17 Pickling procedure
AU27605/95A AU2760595A (en) 1994-06-17 1995-06-19 Process for stainless steel pickling
PCT/SE1995/000748 WO1995035397A1 (en) 1994-06-17 1995-06-19 Process for stainless steel pickling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402168A SE504733C2 (en) 1994-06-17 1994-06-17 Pickling procedure

Publications (3)

Publication Number Publication Date
SE9402168D0 SE9402168D0 (en) 1994-06-17
SE9402168L true SE9402168L (en) 1995-12-18
SE504733C2 SE504733C2 (en) 1997-04-14

Family

ID=20394454

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402168A SE504733C2 (en) 1994-06-17 1994-06-17 Pickling procedure

Country Status (3)

Country Link
AU (1) AU2760595A (en)
SE (1) SE504733C2 (en)
WO (1) WO1995035397A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510298C2 (en) * 1995-11-28 1999-05-10 Eka Chemicals Ab Procedure when picking steel
ES2138516B1 (en) * 1996-12-31 2000-08-16 Asturiana Galvanizadora S A PROCEDURE FOR THE REGENERATION OF BATHS OF HYDROCHLORIC ACID BY ION EXCHANGE.
GB9807286D0 (en) * 1998-04-06 1998-06-03 Solvay Interox Ltd Pickling process
DE19833990A1 (en) 1998-07-29 2000-02-10 Metallgesellschaft Ag Mordant for stainless steels
SE515806C2 (en) * 2000-01-19 2001-10-08 Avesta Polarit Ab Publ Long-term stable urea containing urea as well as ways of making it
US6709528B1 (en) * 2000-08-07 2004-03-23 Ati Properties, Inc. Surface treatments to improve corrosion resistance of austenitic stainless steels
DE10160318A1 (en) * 2001-12-07 2003-06-18 Henkel Kgaa Process for pickling martensitic or ferritic stainless steel
DE10341061B4 (en) * 2003-09-05 2007-08-02 Poligrat Gmbh Electropolishing process for light metal alloys and electrolyte
WO2018000435A1 (en) * 2016-07-01 2018-01-04 深圳市恒兆智科技有限公司 Degreasing agent, metal workpiece and degreasing treatment method for surface of same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923608A (en) * 1956-04-13 1960-02-02 Fmc Corp Method of improving the bonding properties of steel surfaces
GB1279834A (en) * 1968-10-07 1972-06-28 Chugai Kasei Co Ltd Improvements in metal cleaning and etching compositions
GB8922504D0 (en) * 1989-10-05 1989-11-22 Interox Chemicals Ltd Hydrogen peroxide solutions
IT1255655B (en) * 1992-08-06 1995-11-09 STAINLESS STEEL PICKLING AND PASSIVATION PROCESS WITHOUT THE USE OF NITRIC ACID
IT1255855B (en) * 1992-10-12 1995-11-17 Cesare Pedrazzini PICKLING AND PASSIVATION PROCESS FOR TITANIUM SHEETS IN TAPE, WITHOUT THE USE OF NITRIC ACID.

Also Published As

Publication number Publication date
AU2760595A (en) 1996-01-15
SE504733C2 (en) 1997-04-14
SE9402168D0 (en) 1994-06-17
WO1995035397A1 (en) 1995-12-28

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Legal Events

Date Code Title Description
NUG Patent has lapsed