GB129489A - An Electrolytic Method of Cleaning Iron or Steel. - Google Patents
An Electrolytic Method of Cleaning Iron or Steel.Info
- Publication number
- GB129489A GB129489A GB1296018A GB1296018A GB129489A GB 129489 A GB129489 A GB 129489A GB 1296018 A GB1296018 A GB 1296018A GB 1296018 A GB1296018 A GB 1296018A GB 129489 A GB129489 A GB 129489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- fluoride
- steel
- iron
- fluorides
- 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
129,489. Marino, Q. Aug. 9, 1918. Metals, pickling.-An electrolyte for removing rust from iron and steel contains a sulphate and a fluoride, and may have a density of 20-25‹ BÚ. One part of fluoride may be used to three of sulphate; for more rapid action, the amount of fluoride may be increased, but should not exceed the amount of sulphate. One or more of the sulphates of aluminium, magnesium, sodium, or potassium, and one or more of the fluorides of magnesium, sodium, or potassium may be used. Hydrofluoric acid may be used instead of or in addition to fluorides. From 5 to 20 per cent by volume of the commercial acid may be mixed with the solution. The electrolyte is heated to 150-180‹ F. The iron or steel article forms the cathode, the anode being of carbon or lead. Ourrent densities of 10-30 amperes per sq. ft. are suitable, but densities up to 100 amperes may be used.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1296018A GB129489A (en) | 1918-08-09 | 1918-08-09 | An Electrolytic Method of Cleaning Iron or Steel. |
| FR502208D FR502208A (en) | 1918-08-09 | 1919-08-04 | Electrolytic process for pickling iron and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1296018A GB129489A (en) | 1918-08-09 | 1918-08-09 | An Electrolytic Method of Cleaning Iron or Steel. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB129489A true GB129489A (en) | 1919-07-17 |
Family
ID=32345773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1296018A Expired GB129489A (en) | 1918-08-09 | 1918-08-09 | An Electrolytic Method of Cleaning Iron or Steel. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR502208A (en) |
| GB (1) | GB129489A (en) |
-
1918
- 1918-08-09 GB GB1296018A patent/GB129489A/en not_active Expired
-
1919
- 1919-08-04 FR FR502208D patent/FR502208A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR502208A (en) | 1920-05-07 |
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