JPS57127494A - Method for removal of manganese scale - Google Patents

Method for removal of manganese scale

Info

Publication number
JPS57127494A
JPS57127494A JP1069781A JP1069781A JPS57127494A JP S57127494 A JPS57127494 A JP S57127494A JP 1069781 A JP1069781 A JP 1069781A JP 1069781 A JP1069781 A JP 1069781A JP S57127494 A JPS57127494 A JP S57127494A
Authority
JP
Japan
Prior art keywords
scale
soln
manganese
manganese scale
hydrazine
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
JP1069781A
Other languages
Japanese (ja)
Other versions
JPH0147240B2 (en
Inventor
Sueo Shimada
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP1069781A priority Critical patent/JPS57127494A/en
Publication of JPS57127494A publication Critical patent/JPS57127494A/en
Publication of JPH0147240B2 publication Critical patent/JPH0147240B2/ja
Granted 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE:To remove manganese scale stuck on the surfaces of water pipings for various purposes at the normal temperature by treating said scale with hydrazine(salt)-contg. liquid. CONSTITUTION:Cooling water pipings, etc. stuck with manganese scale on their surfaces are treated by a dipping method or the like by using an aq. inorg. acid or org. acid soln. contg. hydrazine hydrate or hydrazine sulfate at about 0.03-6wt%. The concn. of the aq. soln. is set at generally 1-10% and the treatment temp. is ordinary temp. If necessary, the soln. is heated. By this method, the manganese scale is eluted and removed in a short time without corroding metals.
JP1069781A 1981-01-27 1981-01-27 Method for removal of manganese scale Granted JPS57127494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1069781A JPS57127494A (en) 1981-01-27 1981-01-27 Method for removal of manganese scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1069781A JPS57127494A (en) 1981-01-27 1981-01-27 Method for removal of manganese scale

Publications (2)

Publication Number Publication Date
JPS57127494A true JPS57127494A (en) 1982-08-07
JPH0147240B2 JPH0147240B2 (en) 1989-10-12

Family

ID=11757472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1069781A Granted JPS57127494A (en) 1981-01-27 1981-01-27 Method for removal of manganese scale

Country Status (1)

Country Link
JP (1) JPS57127494A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708627A1 (en) * 1993-08-06 1995-02-10 Damery Bernard Process and products for removing deposits of manganese and iron in water reservoirs and conduits
JP2008309296A (en) * 2007-06-18 2008-12-25 Nitta Moore Co Heating-heat insulation tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708627A1 (en) * 1993-08-06 1995-02-10 Damery Bernard Process and products for removing deposits of manganese and iron in water reservoirs and conduits
JP2008309296A (en) * 2007-06-18 2008-12-25 Nitta Moore Co Heating-heat insulation tube

Also Published As

Publication number Publication date
JPH0147240B2 (en) 1989-10-12

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