JPS6462485A - Method for pickling hot rolled steel sheet at high speed - Google Patents
Method for pickling hot rolled steel sheet at high speedInfo
- Publication number
- JPS6462485A JPS6462485A JP21704887A JP21704887A JPS6462485A JP S6462485 A JPS6462485 A JP S6462485A JP 21704887 A JP21704887 A JP 21704887A JP 21704887 A JP21704887 A JP 21704887A JP S6462485 A JPS6462485 A JP S6462485A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- hydrochloric acid
- hot rolled
- rolled steel
- pickling soln
- 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
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
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
PURPOSE:To efficiently remove oxide scale on a hot rolled steel sheet at a high speed by treating the steel sheet in a hydrochloric acid pickling soln. having prescribed acid and ferric ion concns. at a prescribed temp. CONSTITUTION:A hydrochloric acid pickling soln. having 4-15% acid concn. and 0.5-18% ferric ion concn. is prepd. and heated to 50-100 deg.C. A hot rolled steel sheet is descaled by treatment in the heated pickling soln. After the descaling, the spent pickling soln. contg. an increased amt. of ferrous ions is treated with ozone to oxidize the ferrous ions to ferric ions and hydrochloric acid is added to prepare a regenerated hydrochloric acid pickling soln. This regenerated hydrochloric acid pickling soln. is used, further regenerated and recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21704887A JPS6462485A (en) | 1987-08-31 | 1987-08-31 | Method for pickling hot rolled steel sheet at high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21704887A JPS6462485A (en) | 1987-08-31 | 1987-08-31 | Method for pickling hot rolled steel sheet at high speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462485A true JPS6462485A (en) | 1989-03-08 |
Family
ID=16698015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21704887A Pending JPS6462485A (en) | 1987-08-31 | 1987-08-31 | Method for pickling hot rolled steel sheet at high speed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462485A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999027162A1 (en) * | 1997-11-24 | 1999-06-03 | Acciai Speciali Terni S.P.A. | Method for pickling steel products |
| EP0968961A2 (en) * | 1998-06-04 | 2000-01-05 | Tessenderlo Chemie N.V. | Elemental chlorine-free conversion of waste HCl liquor by oxidation and concentration to form aqueous ferric chloride solution |
| JP2008162814A (en) * | 2006-12-27 | 2008-07-17 | Jfe Chemical Corp | Method for producing iron oxide |
| CN106540993A (en) * | 2016-12-01 | 2017-03-29 | 浙江东南金属薄板有限公司 | Hot rolling acid-cleaning plate |
-
1987
- 1987-08-31 JP JP21704887A patent/JPS6462485A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999027162A1 (en) * | 1997-11-24 | 1999-06-03 | Acciai Speciali Terni S.P.A. | Method for pickling steel products |
| EP0968961A2 (en) * | 1998-06-04 | 2000-01-05 | Tessenderlo Chemie N.V. | Elemental chlorine-free conversion of waste HCl liquor by oxidation and concentration to form aqueous ferric chloride solution |
| EP0968961A3 (en) * | 1998-06-04 | 2001-08-22 | Tessenderlo Chemie N.V. | Elemental chlorine-free conversion of waste HCl liquor by oxidation and concentration to form aqueous ferric chloride solution |
| JP2008162814A (en) * | 2006-12-27 | 2008-07-17 | Jfe Chemical Corp | Method for producing iron oxide |
| CN106540993A (en) * | 2016-12-01 | 2017-03-29 | 浙江东南金属薄板有限公司 | Hot rolling acid-cleaning plate |
| CN106540993B (en) * | 2016-12-01 | 2018-11-13 | 浙江东南新材科技有限公司 | Hot rolling acid-cleaning plate |
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