GB603802A - Method of softening and de-aerating water, and particularly boiler water - Google Patents

Method of softening and de-aerating water, and particularly boiler water

Info

Publication number
GB603802A
GB603802A GB28744/45A GB2874445A GB603802A GB 603802 A GB603802 A GB 603802A GB 28744/45 A GB28744/45 A GB 28744/45A GB 2874445 A GB2874445 A GB 2874445A GB 603802 A GB603802 A GB 603802A
Authority
GB
United Kingdom
Prior art keywords
water
hydrazine
treatment
salts
oxygen
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
GB28744/45A
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.)
PROD CHIM DE RIBECOURT
Original Assignee
PROD CHIM DE RIBECOURT
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 PROD CHIM DE RIBECOURT filed Critical PROD CHIM DE RIBECOURT
Publication of GB603802A publication Critical patent/GB603802A/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • 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
    • C23F11/10—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 organic inhibitors
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/148—Nitrogen-containing compounds containing a nitrogen-to-nitrogen bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Water is de-oxygenated and softened by treatment with salts formed from hydrazine or bases producing hydrazine under heat or hydrolysis, containing anions giving insoluble salts with lime and magnesia. From boiler water the treatment precipitates the fur producing agents, removes the oxygen and makes the water slightly alkaline. Oxygen may be removed by the treatment from water to be used in the manufacture of commodities containing vitamins. Salts of the type mentioned are sodium hydrazinic phosphate, hydrazine oxalate, sodium aminoguanidine phosphate and in general the phosphates, oxalates, &c. of carbazides and hydrazine derivatives of urea, guanidine and amidines are effective.
GB28744/45A 1944-11-21 1945-10-30 Method of softening and de-aerating water, and particularly boiler water Expired GB603802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR993063T 1944-11-21

Publications (1)

Publication Number Publication Date
GB603802A true GB603802A (en) 1948-06-23

Family

ID=9555352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28744/45A Expired GB603802A (en) 1944-11-21 1945-10-30 Method of softening and de-aerating water, and particularly boiler water

Country Status (2)

Country Link
FR (1) FR993063A (en)
GB (1) GB603802A (en)

Also Published As

Publication number Publication date
FR993063A (en) 1951-10-26

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