GB1082409A - An electrolytic descaling solution - Google Patents
An electrolytic descaling solutionInfo
- Publication number
- GB1082409A GB1082409A GB4724364A GB4724364A GB1082409A GB 1082409 A GB1082409 A GB 1082409A GB 4724364 A GB4724364 A GB 4724364A GB 4724364 A GB4724364 A GB 4724364A GB 1082409 A GB1082409 A GB 1082409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- article
- passed
- solution
- hno3
- anode
- 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.)
- Expired
Links
Classifications
-
- 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
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
An article of iron or steel is electrolytically descaled while immersed in a bath of anaqueous solution comprising by weight at least 2%, preferably more than 10%, of one or more Na or K salts of H2SO4 or HNO3, 0.1 to 10% of a soluble fluoride, e.g. NaF, KF, KHF2, NH4F or SnF2, and 0.25 to 10% of an organic substance capable of forming complex ions with metal ions removed from the article surface, e.g. citric or tartaric acid or Na or K salt thereof. The pH of the solution may be adjusted from 3 to 13 by adding H2SO4, HF and/or HNO3, or NaOH and/or KOH. D. C. may be passed with the article as cathode or anode, or A. C. may be passed with the article as one or both electrodes, or current may be passed indirectly through the article disposed between an anode and a cathode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6487463 | 1963-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1082409A true GB1082409A (en) | 1967-09-06 |
Family
ID=13270698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4724364A Expired GB1082409A (en) | 1963-12-04 | 1964-11-19 | An electrolytic descaling solution |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1496906B2 (en) |
| GB (1) | GB1082409A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005085502A1 (en) * | 2004-03-10 | 2005-09-15 | Andreas Stepan | Method for pickling steels and regenerating pickling solutions |
| EP1051545B1 (en) * | 1998-02-02 | 2006-06-21 | Outokumpu Stainless AB | Method for treating a metal product |
| EP2725121A3 (en) * | 2012-10-24 | 2016-10-05 | Zen Material Technologies, Inc. | Method for removing rust from a rusted steel |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE409474B (en) * | 1975-05-13 | 1979-08-20 | Wennborg Ab C J | SEE CONTINUOUS AND DISCONTINUAL ELECTROCHEMIC CLEANING OF ALLOY STEELS, SPECIAL STAINLESS STEEL IN THE FORM OF BANDS, BARS, PROFILES, THREADS, RODS AND PIECES WITH SURFACES AND LOSS |
| US4012299A (en) * | 1976-04-01 | 1977-03-15 | Allegheny Ludlum Industries, Inc. | Metallic descaling system |
| GB1520705A (en) * | 1976-04-01 | 1978-08-09 | Allegheny Ludlum Ind Inc | Electrolytic descaling of metals |
| US4174269A (en) * | 1978-06-21 | 1979-11-13 | Ppg Industries, Inc. | Method of treating electrodes |
-
1964
- 1964-11-19 GB GB4724364A patent/GB1082409A/en not_active Expired
- 1964-12-02 DE DE1964M0063323 patent/DE1496906B2/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1051545B1 (en) * | 1998-02-02 | 2006-06-21 | Outokumpu Stainless AB | Method for treating a metal product |
| WO2005085502A1 (en) * | 2004-03-10 | 2005-09-15 | Andreas Stepan | Method for pickling steels and regenerating pickling solutions |
| EP2725121A3 (en) * | 2012-10-24 | 2016-10-05 | Zen Material Technologies, Inc. | Method for removing rust from a rusted steel |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1496906B2 (en) | 1971-07-01 |
| DE1496906A1 (en) | 1970-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB860709A (en) | A new or improved method of pickling alloy steels | |
| GB1327376A (en) | Electrodeposition of copper | |
| GB902827A (en) | Improvements in or relating to the treatment of aluminium | |
| GB1082409A (en) | An electrolytic descaling solution | |
| GB1105388A (en) | Surface treatment of titanium | |
| GB1018043A (en) | Surface treatment of copper and its alloys and the use of treated products | |
| ES8302806A1 (en) | High current density, acid-free electrolytic descaling process. | |
| GB966627A (en) | Improvements in or relating to the electrolytic etching of anodisable metal foil | |
| JPS5514827A (en) | Production of selective absorbing material of solar heat energy | |
| GB522177A (en) | Improvements relating to removing scale from metal | |
| GB1070190A (en) | Electrolytic polishing of metals | |
| GB1196395A (en) | Process for Electrochemically Cleaning and Brightening Copper, Alloy and Brass Strip | |
| GB721445A (en) | Improvements in or relating to the cleaning of magnesium base alloy castings | |
| GB1228095A (en) | ||
| GB1077559A (en) | Electrolyte bath composition for the electrolytic production of lusterless and of corrosion resistant surfaces on metals | |
| US3027310A (en) | Cleaning bath and method of cleaning moving metal strip | |
| KR900004969A (en) | Electrolytic pickling method of high quality steel strip | |
| GB1404067A (en) | Electrolytic surface treatment of copper and copper base articles | |
| US3829367A (en) | Electrolytic polishing of metals | |
| GB1032293A (en) | Improvements in or relating to anodic metal dissolution | |
| GB1089707A (en) | Method for preparation of adiponitrile | |
| GB874366A (en) | Improvements in or relating to the treatment of steel surfaces | |
| GB508723A (en) | Process for the production of protective layers on aluminium or aluminium alloys and magnesium or magnesium alloys | |
| US1324317A (en) | Iron and steel | |
| GB946958A (en) | A method of and an apparatus for the electrolytic production of chromium of a high degree of purity |