GB1410469A - Dry powder fire extinguisher material - Google Patents

Dry powder fire extinguisher material

Info

Publication number
GB1410469A
GB1410469A GB5123371A GB5123371A GB1410469A GB 1410469 A GB1410469 A GB 1410469A GB 5123371 A GB5123371 A GB 5123371A GB 5123371 A GB5123371 A GB 5123371A GB 1410469 A GB1410469 A GB 1410469A
Authority
GB
United Kingdom
Prior art keywords
potassium
bicarbonate
ammonium
coarse fraction
fraction
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
GB5123371A
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.)
KERR CO MANCHESTER Ltd JOHN
Original Assignee
KERR CO MANCHESTER Ltd JOHN
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 KERR CO MANCHESTER Ltd JOHN filed Critical KERR CO MANCHESTER Ltd JOHN
Priority to GB5123371A priority Critical patent/GB1410469A/en
Publication of GB1410469A publication Critical patent/GB1410469A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0007—Solid extinguishing substances
    • A62D1/0014—Powders; Granules

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

1410469 Particulate solids JOHN KERR & CO (MANCHESTER) Ltd 3 Nov 1972 [4 Nov 1971] 51233/71 Heading C1A [Also in Division A5] A dry powder fire extinguisher material is prepared by separating staple fire extinguishing material of spherical or pseudo spherical particles into a fine fraction and a coarse fraction, subjecting the coarse fraction to impact attrition to reduce the size of the particles and thereafter adding the treated coarse fraction to the fine fraction so that the re-combined fractions have a median particle size not exceeding 30 microns. Suitable stable fire extinguishing materials are sodium bicarbonate, potassium bicarbonate, potassium sulphate, potassium chloride and ammonium phosphate. Ammonium sulphate, boric acid or a salt thereof, ammonium bicarbonate, sodium phosphate, an alkali metal halide other than potassium chloride, polymeric material, e.g. polyvinyl chloride, a polysaccharide, a protein, a protein derivative, an oxygen compound of silicon, urea, or a derivative of urea may also be added. Suitable methods of impact attrition are grinding and ball milling.
GB5123371A 1971-11-04 1971-11-04 Dry powder fire extinguisher material Expired GB1410469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5123371A GB1410469A (en) 1971-11-04 1971-11-04 Dry powder fire extinguisher material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5123371A GB1410469A (en) 1971-11-04 1971-11-04 Dry powder fire extinguisher material

Publications (1)

Publication Number Publication Date
GB1410469A true GB1410469A (en) 1975-10-15

Family

ID=10459169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5123371A Expired GB1410469A (en) 1971-11-04 1971-11-04 Dry powder fire extinguisher material

Country Status (1)

Country Link
GB (1) GB1410469A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447206A1 (en) * 1979-01-26 1980-08-22 Total Foerstner & Co Fire extinguishing powder based on sodium chloride - useful on class A, B and C fires, contains inorganic salt with lower m.pt. than sodium chloride
FR2451938A1 (en) * 1979-03-20 1980-10-17 Energy & Minerals Res Co Powder dispersed in gelled liq. - to prevent powder compacting and subsequent blocking of disseminating appts.
FR2474320A1 (en) * 1980-01-30 1981-07-31 Total Foerstner & Co POWDER MIXTURE FOR EXTINGUISHING FIRES
WO1993014820A1 (en) * 1992-01-30 1993-08-05 Ljuberetskoe N Proizv Ob Fire extinguishing composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447206A1 (en) * 1979-01-26 1980-08-22 Total Foerstner & Co Fire extinguishing powder based on sodium chloride - useful on class A, B and C fires, contains inorganic salt with lower m.pt. than sodium chloride
FR2451938A1 (en) * 1979-03-20 1980-10-17 Energy & Minerals Res Co Powder dispersed in gelled liq. - to prevent powder compacting and subsequent blocking of disseminating appts.
FR2474320A1 (en) * 1980-01-30 1981-07-31 Total Foerstner & Co POWDER MIXTURE FOR EXTINGUISHING FIRES
WO1993014820A1 (en) * 1992-01-30 1993-08-05 Ljuberetskoe N Proizv Ob Fire extinguishing composition

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee