FR1488764A - Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron - Google Patents

Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron

Info

Publication number
FR1488764A
FR1488764A FR72212A FR72212A FR1488764A FR 1488764 A FR1488764 A FR 1488764A FR 72212 A FR72212 A FR 72212A FR 72212 A FR72212 A FR 72212A FR 1488764 A FR1488764 A FR 1488764A
Authority
FR
France
Prior art keywords
pipes
iron
protection
alkaline earth
containing compounds
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
FR72212A
Other languages
French (fr)
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to FR72212A priority Critical patent/FR1488764A/en
Application granted granted Critical
Publication of FR1488764A publication Critical patent/FR1488764A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • 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
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
FR72212A 1965-08-05 1966-08-05 Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron Expired FR1488764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR72212A FR1488764A (en) 1965-08-05 1966-08-05 Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47760465A 1965-08-05 1965-08-05
FR72212A FR1488764A (en) 1965-08-05 1966-08-05 Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron

Publications (1)

Publication Number Publication Date
FR1488764A true FR1488764A (en) 1967-07-13

Family

ID=26172425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR72212A Expired FR1488764A (en) 1965-08-05 1966-08-05 Process for the protection of the internal walls of pipes and vessels containing compounds of alkaline earth metals or of iron

Country Status (1)

Country Link
FR (1) FR1488764A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333353A1 (en) * 1973-06-30 1975-01-23 Bayer Ag METHOD FOR PREVENTING CORROSION IN WATER-HANDLING SYSTEMS
FR2511668A1 (en) * 1981-08-18 1983-02-25 Dearborn Chemicals Ltd PROCESS AND COMPOSITION FOR TREATING AQUEOUS SYSTEMS
EP0105612A1 (en) * 1982-09-07 1984-04-18 The Dow Chemical Company Improved boiler scale prevention employing HEDTA as a chelant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333353A1 (en) * 1973-06-30 1975-01-23 Bayer Ag METHOD FOR PREVENTING CORROSION IN WATER-HANDLING SYSTEMS
FR2511668A1 (en) * 1981-08-18 1983-02-25 Dearborn Chemicals Ltd PROCESS AND COMPOSITION FOR TREATING AQUEOUS SYSTEMS
EP0105612A1 (en) * 1982-09-07 1984-04-18 The Dow Chemical Company Improved boiler scale prevention employing HEDTA as a chelant

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