GB1021325A - Method of protecting internal surfaces of the tubes for high-temperatures, high-pressure boilers from corrosion thereof - Google Patents

Method of protecting internal surfaces of the tubes for high-temperatures, high-pressure boilers from corrosion thereof

Info

Publication number
GB1021325A
GB1021325A GB35686/63A GB3568663A GB1021325A GB 1021325 A GB1021325 A GB 1021325A GB 35686/63 A GB35686/63 A GB 35686/63A GB 3568663 A GB3568663 A GB 3568663A GB 1021325 A GB1021325 A GB 1021325A
Authority
GB
United Kingdom
Prior art keywords
tubes
corrosion
temperatures
internal surfaces
protecting internal
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
GB35686/63A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1021325A publication Critical patent/GB1021325A/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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Boiler tubes are protected by passing a lithium hydroxide solution therethrough. The concentration is preferably above 2.5 N and carried out at 300 DEG C. The solution may be used after pickling and may be followed with treatment by caustic soda.
GB35686/63A 1962-09-10 1963-09-10 Method of protecting internal surfaces of the tubes for high-temperatures, high-pressure boilers from corrosion thereof Expired GB1021325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3851862 1962-09-10

Publications (1)

Publication Number Publication Date
GB1021325A true GB1021325A (en) 1966-03-02

Family

ID=12527476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35686/63A Expired GB1021325A (en) 1962-09-10 1963-09-10 Method of protecting internal surfaces of the tubes for high-temperatures, high-pressure boilers from corrosion thereof

Country Status (4)

Country Link
US (1) US3400022A (en)
CH (1) CH425397A (en)
DE (1) DE1278802B (en)
GB (1) GB1021325A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971628A (en) * 1971-03-09 1976-07-27 Aminkemi Ab Method for inhibiting rust formation on iron-containing articles
CA1064626A (en) * 1977-06-09 1979-10-16 Majesty (Her) In Right Of Canada As Represented By Atomic Energy Of Cana Da Limited Deposit suppression in the core of water-cooled nuclear reactors
US4532045A (en) * 1982-07-07 1985-07-30 Waterscience, Inc. Bleed-off elimination system and method
DE4117624A1 (en) * 1991-05-29 1992-12-03 Siemens Ag Passivation of component surfaces used in contact with heavy water - comprises treating with soln. of lithium peroxide in deuterium oxide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173404A (en) * 1963-08-16 1965-03-16 Mortimer C Bloom Protective film formation in high pressure steam generators

Also Published As

Publication number Publication date
US3400022A (en) 1968-09-03
DE1278802B (en) 1968-09-26
CH425397A (en) 1966-11-30

Similar Documents

Publication Publication Date Title
GB1090306A (en) Improvements in or relating to the removal of sulphur dioxide from gases
GB1021325A (en) Method of protecting internal surfaces of the tubes for high-temperatures, high-pressure boilers from corrosion thereof
GB1063978A (en) Boiler protection
SE316570B (en)
GB1055571A (en) Process and apparatus for the elimination of ammonia from industrial gases
GB945966A (en) A method for the direct production of lower hydrates of ferrous sulphate from exhausted pickling baths
GB1037764A (en) Method of eliminating hydrofluoric acid from sewage
GB1176012A (en) Corrosion Inhibition in Gas Scrubbing Process.
CA636832A (en) Method of production and arrangement of steam boilers heated by highly corrosive gases
JPS5261165A (en) Method of removing slime
NACE Recommended Practice: Protection of Austenitic Stainless Steel in Refineries Against Stress Corrosion Cracking by Use of Neutralizing Solutions During Shut Down
KR790000314B1 (en) Corrosion inhibitor for alkanolamine gas treating systems
JPS5541859A (en) Treatment of gas liquor
GB1122884A (en) Process for removing copper compounds from processing equipment
JPS57185989A (en) Protecting method for stainless steel
BE604626A (en) Boiler for the recovery of process exhaust heat.
Borland Paper mill boiler fresh-water practices
GB1073824A (en) Separation of a 4:4-bipyridylium salt from a mixture containing it
ES214195A3 (en) Apparatus for e pipe disconnection (Machine-translation by Google Translate, not legally binding)
GB1090154A (en) Nitrous fumes disposal
Moxness Chemical recovery process and apparatus
DK102288C (en) Process for the direct and simultaneous electrolytic production of inorganic salts of alkali metals, chlorine gas and other gases.
GB991129A (en) High temperature demieralization
GB990741A (en) Deionization process and regeneration of ion-exchangers
GB989688A (en) Process for strengthening glass