GB1257177A - - Google Patents

Info

Publication number
GB1257177A
GB1257177A GB1257177DA GB1257177A GB 1257177 A GB1257177 A GB 1257177A GB 1257177D A GB1257177D A GB 1257177DA GB 1257177 A GB1257177 A GB 1257177A
Authority
GB
United Kingdom
Prior art keywords
dec
sulphamic
hexamethylenetetramine
boilers
thiocyanate
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
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 filed Critical
Publication of GB1257177A publication Critical patent/GB1257177A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
    • C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
    • 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)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

1,257,177. Cleaning metals. KURITA WATER INDUSTRIES Ltd. Dec. 23, 1968 [Dec. 27, 1967], No.61102/68. Heading C7E. Copper containing scale is removed from e.g. boilers using an acid, e.g. hydrochloric, sulphuric, phosphoric or sulphamic, thiourea or a derivative thereof, e.g. alkyl and phenyl derivatives, and hydrazine or a compound thereof e.g. the hydrate, hydrochloride, sulphate, phosphate, carbonate, maleate or citrate. An inhibitor, e.g. hexamethylenetetramine or thiocyanate may be added.
GB1257177D 1967-12-27 1968-12-23 Expired GB1257177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8380067 1967-12-27

Publications (1)

Publication Number Publication Date
GB1257177A true GB1257177A (en) 1971-12-15

Family

ID=13812715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257177D Expired GB1257177A (en) 1967-12-27 1968-12-23

Country Status (4)

Country Link
DE (1) DE1817217A1 (en)
FR (1) FR1603596A (en)
GB (1) GB1257177A (en)
MY (1) MY7300332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224750A (en) * 1988-09-26 1990-05-16 Fuji Xerox Co Ltd Method for removing a selenium-containing layer from an electrophotographic photoreceptor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224750A (en) * 1988-09-26 1990-05-16 Fuji Xerox Co Ltd Method for removing a selenium-containing layer from an electrophotographic photoreceptor
US5085732A (en) * 1988-09-26 1992-02-04 Fuji Xerox Co., Ltd. Method for removing a selenium-containing layer from a electrophotographic photoreceptor
GB2224750B (en) * 1988-09-26 1992-12-02 Fuji Xerox Co Ltd Method for removing a selenium-containing layer from an electrophotographic photoreceptor

Also Published As

Publication number Publication date
DE1817217A1 (en) 1969-08-14
FR1603596A (en) 1971-05-03
MY7300332A (en) 1973-12-31

Similar Documents

Publication Publication Date Title
AU2393088A (en) Rust and scale removal with an aqueous passivating solution
GB865192A (en) Improvements in or relating to corrosion inhibitors
NO841698L (en) Corrosion inhibition of aqueous salt solutions
ES2070590T3 (en) DISPOSAL OF CHELATES DISSOLVED FROM AQUEOUS SOLUTIONS.
FI840167A (en) FOERFARANDE VID MEKANISK BEARBETNING AV GJUTJAERN SAMT VATTENHALTIGT KONCENTRAT AVSETT ATT ANVAENDAS VID FOERFARANDET.
GB935680A (en) Corrosion inhibiting
GB1257177A (en)
SE7713717L (en) INHIBITOR FOR ALUMINUM IN ALKALINE SOLUTIONS
GB1302738A (en)
JPS57152476A (en) Corrosion inhibitor
ES413134A1 (en) Method of stabilizing dichlorocyanuric acid salts
JPS5739177A (en) Water soluble rust-resisting agent
GB1350274A (en) Corrosion inhibitor
BR8206611A (en) FUNGICIDE COMPOSITION
ES319653A1 (en) A procedure for the preparation of imidazole derivatives. (Machine-translation by Google Translate, not legally binding)
JPS57185988A (en) Anticorrosive for metal
GB1142429A (en) Corrosion inhibiting compositions and process
GB1161550A (en) Coating of Iron or Iron Alloys
FR1601282A (en) Acid chemical milling of al or mg base - alloy castings
JPS5295666A (en) 2-imino-1,3-diazacycloalkane derivatives
GB884932A (en) Improvements in or relating to the prevention of corrosion of metals in contact with oxygen-containing water
JPS57164987A (en) Anticorrosive for copper
GB1162717A (en) Inhibition of Corrosiveness of Alkali Metal or Ammonium Salts of Halogen Substituted Aliphatic Acids
GB1397451A (en) Descaling formulations
JPS544834A (en) Corrosion inhibitor

Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee