GB641021A - Improvements in or relating to installations for cathodically protecting undergroundmetallic structures - Google Patents
Improvements in or relating to installations for cathodically protecting undergroundmetallic structuresInfo
- Publication number
- GB641021A GB641021A GB34223/47A GB3422347A GB641021A GB 641021 A GB641021 A GB 641021A GB 34223/47 A GB34223/47 A GB 34223/47A GB 3422347 A GB3422347 A GB 3422347A GB 641021 A GB641021 A GB 641021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- undergroundmetallic
- installations
- relating
- structures
- 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
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
641,021. Preventing corrosion. ALUMINUM CO. OF AMERICA. Dec. 24, 1947, No. 34223. Convention date, Dec. 26, 1946. [Class 123(i)] An anode for use in cathodic systems for protecting underground metallic structures comprises an electrode of aluminous metal the surface of which is in contact with a mixture containing a mercury compound, e.g. mercurous chloride, which yields metallic mercury when in contact with aluminium. The mercurous chloride in an amount at least 0.001 per cent by dry weight of the mixture, and preferably of 0.05 per cent to 1.0 per cent, may be mixed with an inert material or with any chemical, e.g. inorganic halide, to promote the action of the cell. If desired, in addition, a coating containing the mercury compound may be applied directly to the electrode. Specification 641,022 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US718595A US2541062A (en) | 1946-12-26 | 1946-12-26 | Utilization of aluminous metal electrodes in cathodic protection installations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB641021A true GB641021A (en) | 1950-08-02 |
Family
ID=24886685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34223/47A Expired GB641021A (en) | 1946-12-26 | 1947-12-24 | Improvements in or relating to installations for cathodically protecting undergroundmetallic structures |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2541062A (en) |
| FR (1) | FR957880A (en) |
| GB (1) | GB641021A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE504585A (en) * | 1950-07-12 | |||
| US2758082A (en) * | 1952-08-13 | 1956-08-07 | Frederick A Rohrman | Cathodic protection |
| DE1090049B (en) * | 1956-07-02 | 1960-09-29 | Reynolds Metals Co | Cathodic corrosion protection |
| DE3103558C2 (en) * | 1981-02-03 | 1985-08-08 | Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover | Corrosion protection |
| CA1309971C (en) * | 1987-08-25 | 1992-11-10 | Hank St. Onge | Internal and external corrosion protection of metal vessels |
| US5040599A (en) * | 1989-12-04 | 1991-08-20 | Phillips Petroleum Company | Cathodic protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB437536A (en) * | 1934-06-05 | 1935-10-31 | Austin Gordon Lovell Pennock | A new or improved galvanic battery |
-
0
- FR FR957880D patent/FR957880A/fr not_active Expired
-
1946
- 1946-12-26 US US718595A patent/US2541062A/en not_active Expired - Lifetime
-
1947
- 1947-12-24 GB GB34223/47A patent/GB641021A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2541062A (en) | 1951-02-13 |
| FR957880A (en) | 1950-02-28 |
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