[go: up one dir, main page]

GB670482A - Improvements in and relating to packaged anodes for the galvanic protection of underground metals - Google Patents

Improvements in and relating to packaged anodes for the galvanic protection of underground metals

Info

Publication number
GB670482A
GB670482A GB32991/49A GB3299149A GB670482A GB 670482 A GB670482 A GB 670482A GB 32991/49 A GB32991/49 A GB 32991/49A GB 3299149 A GB3299149 A GB 3299149A GB 670482 A GB670482 A GB 670482A
Authority
GB
United Kingdom
Prior art keywords
mass
anode
magnesium
granular
electrolyte
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
Application number
GB32991/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB32991/49A priority Critical patent/GB670482A/en
Publication of GB670482A publication Critical patent/GB670482A/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
    • C23F2213/22—Constructional parts or assemblies of the anodic or cathodic protection apparatus characterized by the ionic conductor, e.g. humectant, hydratant or backfill
    • 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
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/32—Pipes

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

670,482. Electrolytic protection from corrosion. ABBEY, A. (Dow Chemical Co.). Dec. 23, 1949, No. 32991/49. Class 41. [Also in Group XVIII] A packaged anode for use in cathodic protection systems comprises a magnesium metal anode 6 embedded in a self-sustaining porous mass 8 of a granular electrolyte selected from the class consisting of alkaline-earth metal hydroxides and alkali- and alkaline-earth metal salts of acids which form water-soluble magnesium salts, the mass being cemented together by magnesium oxysulphate. The electrolyte 8 may, for example, consist of calcined gypsum. The cemented mass may contain fillers such as sand, gravel, crushed washed coke, and may contain also granular magnesium hydroxide or oxide to maintain alkalinity. Powdered or granular bentonite may also be added to the mass. The magnesium oxysulphate may function not only as cement but also as electrolyte. The mass may be strengthened by the provision of burlap wrapped spirally around the anode. The anode 6 which may be cast around a steel cable 7 is shown connected by a conductor 9 to a steel pipe-line 4 which it is desired to protect. Specification 641,022, [Group XVIII], is referred to.
GB32991/49A 1949-12-23 1949-12-23 Improvements in and relating to packaged anodes for the galvanic protection of underground metals Expired GB670482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32991/49A GB670482A (en) 1949-12-23 1949-12-23 Improvements in and relating to packaged anodes for the galvanic protection of underground metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32991/49A GB670482A (en) 1949-12-23 1949-12-23 Improvements in and relating to packaged anodes for the galvanic protection of underground metals

Publications (1)

Publication Number Publication Date
GB670482A true GB670482A (en) 1952-04-16

Family

ID=10347035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32991/49A Expired GB670482A (en) 1949-12-23 1949-12-23 Improvements in and relating to packaged anodes for the galvanic protection of underground metals

Country Status (1)

Country Link
GB (1) GB670482A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090049B (en) * 1956-07-02 1960-09-29 Reynolds Metals Co Cathodic corrosion protection
DE1265534B (en) * 1960-04-15 1968-04-04 Secco Process for cathodic corrosion protection of metallic components
WO2006043113A2 (en) * 2004-10-20 2006-04-27 Gareth Glass Improvements related to the protection of reinforcement
GB2425778A (en) * 2004-07-06 2006-11-08 Chem Technologies Ltd E Protection of reinforcing steel
CN117552010A (en) * 2024-01-11 2024-02-13 中冶建筑研究总院（深圳）有限公司 Device and method for corrosion prevention of concrete equipment using seawater and sea sand

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090049B (en) * 1956-07-02 1960-09-29 Reynolds Metals Co Cathodic corrosion protection
DE1265534B (en) * 1960-04-15 1968-04-04 Secco Process for cathodic corrosion protection of metallic components
GB2425778A (en) * 2004-07-06 2006-11-08 Chem Technologies Ltd E Protection of reinforcing steel
GB2425778B (en) * 2004-07-06 2009-07-15 Chem Technologies Ltd E Protection of reinforcing steel
US7648623B2 (en) 2004-07-06 2010-01-19 Gareth Glass Protection of reinforcing steel
WO2006043113A2 (en) * 2004-10-20 2006-04-27 Gareth Glass Improvements related to the protection of reinforcement
WO2006043113A3 (en) * 2004-10-20 2007-05-10 Gareth Glass Improvements related to the protection of reinforcement
US7749362B2 (en) 2004-10-20 2010-07-06 Gareth Glass Protection of reinforcement
CN117552010A (en) * 2024-01-11 2024-02-13 中冶建筑研究总院（深圳）有限公司 Device and method for corrosion prevention of concrete equipment using seawater and sea sand
CN117552010B (en) * 2024-01-11 2024-03-19 中冶建筑研究总院（深圳）有限公司 Device and method for corrosion prevention of concrete equipment using seawater and sea sand

Similar Documents

Publication Publication Date Title
GB1480161A (en) Drilling mud-cement compositions and a method for well cementing operations
US2565544A (en) Cathodic protection and underground metallic structure embodying the same
CN105819733A (en) Concrete anti-cracking and anti-permeability special additive and preparation method thereof
GB1402605A (en) Grouting and sealing cement and a process using it for grouting and or sealing off mine faces or boreholes
CN105565695B (en) A kind of concrete corrosion inhibitor and corrosion protection concrete
CN103739263A (en) Gel material for filling worked out section by vanadium-titanium-containing slags
GB656326A (en) Improved rapid-wetting gypsum-base backfill for cathodic protection of metals
US3522068A (en) Cement composition and process for preparing it
GB1468771A (en) Production of hydrogen
GB670482A (en) Improvements in and relating to packaged anodes for the galvanic protection of underground metals
CA2617588C (en) Deep well anodes for electrical grounding
Thomas Corrosion problems in reinforced concrete: why accelerators of cement hydration usually promote corrosion of steel
US2527361A (en) Packaged magnesium anode with compacted backfill
GB641022A (en) Improvements in or relating to anode packages for use in cathodic systems for protecting underground metallic structures
CN104230201A (en) Waterproof anticorrosion agent for cement mortar and concrete and preparation thereof
GB1235188A (en) Improvements in or relating to methods of sealing or stabilizing porous structures or formations
GB658364A (en) Improvements in or relating to anodes for cathodic protection of metal structures
GB1372081A (en) Hydraulic composition
FR2305482A1 (en) Treating dust esp. in (coal) mines - using aq. or powdery compsns. contg.10-100 percent potassium carbonate
JPH06263490A (en) Steelmaking slag-containing solidifying composition
EP3725752A1 (en) Concrete waterproofing agent
WO1990000635A1 (en) Product capable of inhibiting the corrosion of the reinforcements present in concrete or cement mortar and related process
Astutiningsih et al. Corrosion of steel reinforcements in fly ash-and kaolin-based geopolymer concrete immersed in distilled water and ASTM seawater
US2804393A (en) Ammonia resistant cement
CN111592317A (en) Plastering gypsum mortar suitable for concrete buildings in open-pit coal mines and preparation method thereof