CA2305357A1 - Cathodic protection methods and apparatus - Google Patents

Cathodic protection methods and apparatus Download PDF

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Publication number
CA2305357A1
CA2305357A1 CA002305357A CA2305357A CA2305357A1 CA 2305357 A1 CA2305357 A1 CA 2305357A1 CA 002305357 A CA002305357 A CA 002305357A CA 2305357 A CA2305357 A CA 2305357A CA 2305357 A1 CA2305357 A1 CA 2305357A1
Authority
CA
Canada
Prior art keywords
anode layer
cathodic protection
preferred embodiments
protection methods
sheets
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.)
Granted
Application number
CA002305357A
Other languages
French (fr)
Other versions
CA2305357C (en
Inventor
Satyanarayana Reddi
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.)
Fluor Daniel Inc
Original Assignee
Fluor Daniel, Inc.
Satyanarayana Reddi
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 Fluor Daniel, Inc., Satyanarayana Reddi filed Critical Fluor Daniel, Inc.
Publication of CA2305357A1 publication Critical patent/CA2305357A1/en
Application granted granted Critical
Publication of CA2305357C publication Critical patent/CA2305357C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/16—Electrodes characterised by the combination of the structure and the material
    • 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
    • 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
    • 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
    • C23F2201/00—Type of materials to be protected by cathodic protection

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

Apparatus, compositions and methods provide cathodic protection to a structure by placing an anode layer (10) directly between the structure (22) and its underlying foundation (30). Structures contemplated to be protected in this manner include especially very large structures such as above ground storage tanks. In one aspect of preferred embodiments, the anode layer (10) comprises sheets of at least 85 % aluminum with other alloying elements such as magnesium (0.05 to 6 %), zinc (0.1 to 8 %), indium (0.05 to 0.03 %) and tin (0.05 to 0.2 %) added for the purposes of optimizing current yield, polarization and ease of manufacturing the sheet. In another aspect of preferred embodiments, the anode layer (10) comprises at least two overlapping sheets.
CA002305357A 1997-10-02 1998-02-06 Cathodic protection methods and apparatus Expired - Lifetime CA2305357C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US6066697P 1997-10-02 1997-10-02
US60/060,666 1997-10-02
PCT/US1998/002308 WO1999018261A1 (en) 1997-10-02 1998-02-06 Cathodic protection methods and apparatus

Publications (2)

Publication Number Publication Date
CA2305357A1 true CA2305357A1 (en) 1999-04-15
CA2305357C CA2305357C (en) 2004-04-27

Family

ID=22031010

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305357A Expired - Lifetime CA2305357C (en) 1997-10-02 1998-02-06 Cathodic protection methods and apparatus

Country Status (8)

Country Link
EP (1) EP1100981A4 (en)
JP (1) JP3645180B2 (en)
KR (1) KR100362258B1 (en)
CN (1) CN1207443C (en)
AU (1) AU746899B2 (en)
BR (1) BR9812714A (en)
CA (1) CA2305357C (en)
WO (1) WO1999018261A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100485953B1 (en) * 2002-12-13 2005-05-06 한국전력기술 주식회사 Method for cathodic protection for metal structure
JP4539199B2 (en) * 2004-07-05 2010-09-08 日本防蝕工業株式会社 Zinc alloy galvanic anode and method for galvanic protection of equipment placed in a high temperature environment using the zinc alloy galvanic anode
KR100824187B1 (en) * 2006-08-07 2008-04-21 이진희 Storage tank and storage tank bottom structure and repair method of tank bottom structure
CN101586241B (en) * 2009-06-20 2013-05-08 戴明安 Aluminum zinc series alloy sacrificial anode for electric water heaters
CN102234808B (en) * 2011-07-08 2013-02-20 中国石油天然气集团公司 Aluminum alloy sacrificial anode suitable for sea mud in Bohai Sea Gulf
JP2013164120A (en) * 2012-02-10 2013-08-22 Kyushu Univ Heat insulation material
US9550247B2 (en) 2013-07-18 2017-01-24 Aps Materials, Inc. Double coupon reference cell and methods of making same
KR101628455B1 (en) 2014-04-16 2016-06-09 현대자동차주식회사 End plate for fuel cell
CN104451703A (en) * 2014-12-15 2015-03-25 山东德瑞防腐材料有限公司 Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode
CN105543858A (en) * 2015-12-31 2016-05-04 上海纬固防腐工程有限公司 Monitoring type nonmetal corner fire-resistant antiseptic system
NO20160374A1 (en) * 2016-03-03 2017-09-04 Vetco Gray Scandinavia As System and method for cathodic protection by distributed sacrificial anodes
ES2968464T3 (en) 2017-11-10 2024-05-09 Construction Research & Technology Gmbh Microsilica to improve the fluidity of a geopolymer suspension
CN110338628B (en) * 2018-04-02 2021-09-24 佛山市顺德区美的电热电器制造有限公司 Inner pot and cooking utensil
CN110893065B (en) * 2018-09-12 2023-04-25 武汉苏泊尔炊具有限公司 Pot body, processing method of pot body and cooking utensil
KR102245071B1 (en) * 2020-07-22 2021-04-26 김현애 Heat Insulated Container Made with Brass
KR102140925B1 (en) * 2020-02-06 2020-08-04 김현애 Heat Insulated Container Made with Brass
WO2021158064A1 (en) * 2020-02-06 2021-08-12 김현애 Copper alloy thermal insulation container having anti-corrosion function
CN111794549B (en) * 2020-07-07 2021-11-09 中国化学工程第十四建设有限公司 Construction method for lowering height and changing bottom of vertical storage tank
KR20240009064A (en) 2022-07-13 2024-01-22 주식회사 케이씨 construction method of horizontal anode insert for cathode protecting for aboveground welded tank for oil storage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240021A (en) * 1935-08-16 1941-04-29 United States Steel Corp Method of preventing wedge and contact corrosion of metals and alloys
US3202596A (en) * 1961-11-02 1965-08-24 Exxon Research Engineering Co Sacrificial anode bonded with epoxy resin
AR201314A1 (en) * 1973-04-19 1975-02-28 Bagnulo L SACRIFICE ANODE FOR THE CATHODIC PROTECTION OF ANY TYPE OF METALLIC SURFACE
US5292411A (en) * 1990-09-07 1994-03-08 Eltech Systems Corporation Method and apparatus for cathodically protecting reinforced concrete structures
US5505826A (en) * 1994-11-30 1996-04-09 Haglin; Patrick G. Hydrophilic anode corrosion control system

Also Published As

Publication number Publication date
AU6320298A (en) 1999-04-27
JP2001519478A (en) 2001-10-23
EP1100981A1 (en) 2001-05-23
CN1207443C (en) 2005-06-22
JP3645180B2 (en) 2005-05-11
EP1100981A4 (en) 2002-07-31
CN1309727A (en) 2001-08-22
CA2305357C (en) 2004-04-27
KR20010030856A (en) 2001-04-16
WO1999018261A1 (en) 1999-04-15
BR9812714A (en) 2000-08-22
AU746899B2 (en) 2002-05-02
KR100362258B1 (en) 2002-11-23

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Effective date: 20180206