EP0104012A3 - Composition and method for simultaneously removing iron and copper scales from ferrous metal surfaces - Google Patents
Composition and method for simultaneously removing iron and copper scales from ferrous metal surfaces Download PDFInfo
- Publication number
- EP0104012A3 EP0104012A3 EP83304969A EP83304969A EP0104012A3 EP 0104012 A3 EP0104012 A3 EP 0104012A3 EP 83304969 A EP83304969 A EP 83304969A EP 83304969 A EP83304969 A EP 83304969A EP 0104012 A3 EP0104012 A3 EP 0104012A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- ferrous metal
- metal surfaces
- removing iron
- composition
- erythorbic acid
- 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.)
- Withdrawn
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
- C23G1/088—Iron or steel solutions containing organic acids
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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42099882A | 1982-09-21 | 1982-09-21 | |
US420998 | 1999-10-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0104012A2 EP0104012A2 (en) | 1984-03-28 |
EP0104012A3 true EP0104012A3 (en) | 1985-08-21 |
Family
ID=23668765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83304969A Withdrawn EP0104012A3 (en) | 1982-09-21 | 1983-08-26 | Composition and method for simultaneously removing iron and copper scales from ferrous metal surfaces |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0104012A3 (en) |
CA (1) | CA1204372A (en) |
ES (1) | ES8503728A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2157322B (en) * | 1984-03-29 | 1987-10-21 | Diversey Limited | Removal of iron oxide deposits |
US4810405A (en) * | 1987-10-21 | 1989-03-07 | Dearborn Chemical Company, Limited | Rust removal and composition thereof |
CN1047409C (en) * | 1997-03-07 | 1999-12-15 | 沈阳市巨龙防腐技术研究所 | Normal-temp copper pickling corrosion inhibitor |
DE10346192B4 (en) * | 2003-10-02 | 2009-08-06 | Thyssenkrupp Presta Teccenter Ag | Method for rust removal of molded parts and use of the method |
EP1809791B1 (en) | 2004-09-25 | 2008-01-23 | Chemetall GmbH | Method for removing laser scales |
CN112516793A (en) * | 2020-11-10 | 2021-03-19 | 东华理工大学 | Method for reducing Fe (III) EDTA by using sodium iso-VC and method for removing NO in waste gas by using EDTA |
CN113337827A (en) * | 2021-06-07 | 2021-09-03 | 山东惠中新材料科技有限公司 | Environment-friendly rust remover |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2040546B1 (en) * | 1970-08-14 | 1971-12-02 | Hagen Feldmann | Aqueous solution of an aliphatic carboxylic acid to remove ocher deposits or deposits |
US3803042A (en) * | 1972-04-27 | 1974-04-09 | Halliburton Co | Composition and method for removing copper containing scales from metals |
DE2457235A1 (en) * | 1974-12-04 | 1976-06-10 | Peter Vodicka | Protecting descaled pickled or cleaned metal articles - against attack by ferric cations by redn. using metals or water soluble cpds. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53731B2 (en) * | 1973-07-31 | 1978-01-11 |
-
1983
- 1983-08-26 EP EP83304969A patent/EP0104012A3/en not_active Withdrawn
- 1983-09-20 CA CA000437060A patent/CA1204372A/en not_active Expired
- 1983-09-21 ES ES525797A patent/ES8503728A1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2040546B1 (en) * | 1970-08-14 | 1971-12-02 | Hagen Feldmann | Aqueous solution of an aliphatic carboxylic acid to remove ocher deposits or deposits |
US3803042A (en) * | 1972-04-27 | 1974-04-09 | Halliburton Co | Composition and method for removing copper containing scales from metals |
DE2457235A1 (en) * | 1974-12-04 | 1976-06-10 | Peter Vodicka | Protecting descaled pickled or cleaned metal articles - against attack by ferric cations by redn. using metals or water soluble cpds. |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 78, no. 16, 23rd April 1973, page 223, no. 100930g, Columbus, Ohio, US; & JP-A-47 025 078 (TOKYO SHIBAURA ELECTRIC CO., LTD.) 19-10-1972 * |
CHEMICAL ABSTRACTS, vol. 84, no. 4, 1st January 1976, page 262, no. 21059a, Columbus, Ohio, US; & JP-A-50 033 933 (KURITA WATER INDUSTRIES, LTD.) 02-04-1975 * |
Also Published As
Publication number | Publication date |
---|---|
ES525797A0 (en) | 1985-03-01 |
EP0104012A2 (en) | 1984-03-28 |
CA1204372A (en) | 1986-05-13 |
ES8503728A1 (en) | 1985-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB IT NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB IT NL |
|
17P | Request for examination filed |
Effective date: 19850930 |
|
17Q | First examination report despatched |
Effective date: 19860526 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19870205 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MARTIN, LARRY DALE Inventor name: LAWSON, MICHAEL BEAU |