GB869751A - Treatment of water - Google Patents

Treatment of water

Info

Publication number
GB869751A
GB869751A GB1555357A GB1555357A GB869751A GB 869751 A GB869751 A GB 869751A GB 1555357 A GB1555357 A GB 1555357A GB 1555357 A GB1555357 A GB 1555357A GB 869751 A GB869751 A GB 869751A
Authority
GB
United Kingdom
Prior art keywords
hydrazine
water
active carbon
less
dissolved 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
GB1555357A
Inventor
Francis Richard Houghton
James Clifton Cuerdon
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.)
Sutcliffe Speakman and Co Ltd
Original Assignee
Sutcliffe Speakman and Co 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 Sutcliffe Speakman and Co Ltd filed Critical Sutcliffe Speakman and Co Ltd
Priority to GB1555357A priority Critical patent/GB869751A/en
Publication of GB869751A publication Critical patent/GB869751A/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
    • C23F11/181—Nitrogen containing compounds
    • 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

Landscapes

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

Abstract

869,751. De-oxygenating water. SUTCLIFFE, SPEAKMAN & CO. Ltd. May 9, 1958 [May 16, 1957], No. 15553/57. Class 46. Dissolved oxygen is removed from water in a process comprising contacting the water with hydrazine in the presence of active carbon at a temperature of not less than 90‹F. The water is preferably preheated to 90‹-130‹F. and has a pH of about 9À5, the hydrazine being fed into the water at such a rate that 10% to 30% of hydrazine is in excess of that required to react with dissolved oxygen. The mixture is then contacted for not less than 30 seconds with active carbon having a surface area of not less than 1,000 sq. metres per gram and a particle size of 12-16 B.S.S. In Fig. 1 boiler feed water is preheated, dosed with a dilute aqueous solution of hydrazine distributed from a ceramic diffuser 7, and passed to a vessel 2 containing a bed 3a of active carbon. The hydrazine is delivered as a 17À5% w/w solution from a storage vessel 8 by a pump 9. Cocks 6 facilitate withdrawal of water for analysis of hydrazine and/or dissolved oxygen contents. Line 1 is provided to compare results of hydrazine treatment with or without the use of active carbon. Results are compared for rates of oxygen removal from boiler feed water containing an excess of 70%, 50% and 30% of hydrazine.
GB1555357A 1957-05-16 1957-05-16 Treatment of water Expired GB869751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1555357A GB869751A (en) 1957-05-16 1957-05-16 Treatment of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1555357A GB869751A (en) 1957-05-16 1957-05-16 Treatment of water

Publications (1)

Publication Number Publication Date
GB869751A true GB869751A (en) 1961-06-07

Family

ID=10061196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1555357A Expired GB869751A (en) 1957-05-16 1957-05-16 Treatment of water

Country Status (1)

Country Link
GB (1) GB869751A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214648A2 (en) * 1985-09-11 1987-03-18 The Graver Company Deoxygenation and purification of liquids
US4818411A (en) * 1983-12-16 1989-04-04 Ecolochem, Inc. Deoxygenation process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818411A (en) * 1983-12-16 1989-04-04 Ecolochem, Inc. Deoxygenation process
EP0214648A2 (en) * 1985-09-11 1987-03-18 The Graver Company Deoxygenation and purification of liquids
EP0214648A3 (en) * 1985-09-11 1988-12-28 The Graver Company Deoxygenation and purification of liquids

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