[go: up one dir, main page]

WO2014114059A1 - Agent d'extinction d'incendie à poudre sèche - Google Patents

Agent d'extinction d'incendie à poudre sèche Download PDF

Info

Publication number
WO2014114059A1
WO2014114059A1 PCT/CN2013/078802 CN2013078802W WO2014114059A1 WO 2014114059 A1 WO2014114059 A1 WO 2014114059A1 CN 2013078802 W CN2013078802 W CN 2013078802W WO 2014114059 A1 WO2014114059 A1 WO 2014114059A1
Authority
WO
WIPO (PCT)
Prior art keywords
fire extinguishing
extinguishing agent
dry powder
nitrate
nitrite
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.)
Ceased
Application number
PCT/CN2013/078802
Other languages
English (en)
Chinese (zh)
Inventor
杜志明
冯长根
赵林双
丛晓民
杜欣
闫野
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.)
Beijing Institute of Technology BIT
Original Assignee
Beijing Institute of Technology BIT
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
Priority claimed from CN201310028282.1A external-priority patent/CN103111035B/zh
Priority claimed from CN2013100775744A external-priority patent/CN103170088A/zh
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Publication of WO2014114059A1 publication Critical patent/WO2014114059A1/fr
Anticipated expiration legal-status Critical
Ceased 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

Definitions

  • This invention relates to a dry powder fire extinguishing agent, and more particularly to a dry powder fire extinguishing agent which can be used to extinguish various combustible solids, liquids, gas fires and electrical fires.
  • the fire extinguishing agent of the present invention can be used in various portable dry powder fire extinguishers, fire extinguishers, fire extinguishing vehicles, fire fighting aircraft, and can also be used in solid fire extinguishing devices without pipe networks and pipe network fire extinguishing systems. Background technique
  • the existing dry powder fire extinguishing agent is mainly an ammonium silicate type fire extinguishing agent and a sodium hydrogencarbonate type fire extinguishing agent.
  • Ammonium phosphate type dry powder fire extinguishing agent can be used to extinguish flammable solid, liquid and gas fires.
  • Sodium bicarbonate type dry powder fire extinguishing agent is mainly used to extinguish flammable liquid and gas fires.
  • the invention relates to a novel dry powder fire extinguishing agent which uses a +2 or +1 metal ion nitrate and/or nitrite salt and a phosphorus-containing flame retardant as a fire extinguishing base, and optionally adds a small amount to promote chemical reaction. Catalysts and other additives to improve the physical properties of fire extinguishing powders.
  • the dry powder fire extinguishing agent of the present invention can not only dissociate highly active chemicals in the fire field, i1 ⁇ 2 consumes flame chain reaction free radicals, interrupts the combustion chain reaction and rapidly extinguishes various solid surfaces, flammable liquids. And the gas flame, at the same time can also form a flame retardant film on the solid surface to extinguish the deep hidden fire.
  • the fire extinguishing agent of the invention has the characteristics of fast fire extinguishing speed, high fire extinguishing efficiency and low pollution.
  • the inactivated binder is mainly composed of a +2 or +1 valent metal ion nitrate and/or a nitrite or a phosphorus-containing substance, wherein the present invention is used in the total weight of the fire extinguishing agent.
  • the weight percent of +2 or +1 metal ion nitrates and/or nitrites, phosphorus-containing flame retardants, catalysts and additives in firearms are: +2 and +1 metal ion nitrates and / or nitrite 20-90% by weight, phosphorus-containing material 0-75% by weight, catalyst 0-10% by weight, other additives 5-12% by weight.
  • the +2 and +1 valent metal ion nitrates useful in the dry powder fire extinguishing agent of the present invention include calcium nitrate, magnesium nitrate, copper nitrate, zinc nitrate, cerium nitrate, cerium nitrate, sodium nitrate, nitric acid, lithium nitrate, nitric acid and Nitrate, etc.
  • nitrite includes nitrous acid, magnesium nitrite, bismuth nitrite, sodium nitrite, nitrous acid, lithium nitrite, etc., preferably sodium nitrate, cerium nitrate, nitric acid, lithium nitrate, sodium nitrite and sub- Potassium nitrate.
  • the dry powder fire extinguishing agent of the present invention may contain one or more of the +2 valence and +1 valent metal ion nitrates and/or nitrites.
  • the content of the +2 and +1 metal ion nitrates and/or nitrites in the dry powder fire extinguishing agent of the present invention is 20-90% by weight, for example 60-85% by weight, 35-65, based on the total weight of the fire extinguishing agent. Weight%, 20-40% by weight.
  • the ratio of nitrate to nitrite used may be 1:99 to 99:1.
  • Phosphorus-containing flame retardant materials useful in the dry powder fire extinguishing agent of the present invention include red phosphorus, phosphorus oxides and orthophosphates, pyrophosphates, metaphosphates, polyphosphates, and polymetaphosphates, and mixtures thereof.
  • the phosphate may be a salt of an alkali metal such as sodium and potassium as well as an ammonium salt.
  • the phosphate may be dihydrogen phosphate, ammonium metaphosphate, ammonium polyphosphate, ammonium pyrophosphate or the like.
  • the content of the phosphorus-containing flame retardant in the dry powder fire extinguishing agent of the present invention is from 0 to 75% by weight, based on the total weight of the fire extinguishing agent, for example, 5 to 55% by weight, 16 to 49% by weight, 32 to 42% by weight or the like.
  • the higher the weight % of the phosphorus-containing flame retardant in the fire extinguishing agent the stronger the fire extinguishing ability.
  • the dry powder fire extinguishing agent of the present invention may contain a small amount of a catalyst for promoting a chemical reaction, and the catalyst may be an azole compound such as 5-aminotetrazole, 1,5-diaminotetrazole, a triazole salt, or an aminotriazole salt. , tetrazolium salt, ditetrazole salt, azotetrazolium salt and the like. These azole compounds promote the formation of fire-retardant active free radicals in the fire and release nitrogen to facilitate fire suppression.
  • the triazole salt, the aminotriazole salt, the tetrazolium salt, the bistriazole salt, and the azotetrazolium salt of the above azole compound may be the azole compound and an alkali metal such as sodium and potassium, an alkaline earth metal such as Salts of calcium, magnesium, barium, and organic bases such as biguanide, aminoguanidine, etc., for example, potassium and sodium triazole salts, potassium salt of tetratetrazole, sodium azotetrazole salt, potassium azotetrazole, azo Tetrazolium dihydrazide salt, azotetrazole aminoguanidine salt and the like.
  • the azole compound which can be used as the catalyst of the present invention is commercially available or can be obtained by a synthetic method known to those skilled in the art, for example, as described in the literature.
  • the catalyst may be other catalytically active substances such as refined copper oxide, iron oxide, carbon nanotubes, sulfur, and the like.
  • the catalyst is contained in an amount of from 0 to 10% by weight, for example, from 2% to 8%, based on the total weight of the fire extinguishing agent.
  • the dry powder fire extinguishing agent of the present invention is also added with a certain amount of existing dry powder fire extinguishing agent.
  • the water-repellent component and the hydrophobic component are used to prevent the fire-extinguishing agent from absorbing moisture and agglomerating.
  • These added components may be, but are not limited to, mica powder, activated clay, magnesium stearate, talc, white carbon, etc., in an amount substantially the same as that added in existing dry powder fire extinguishing agents.
  • the additive may be included in an amount of 5 to 12% by weight based on the total weight of the fire extinguishing agent.
  • the dry powder fire extinguishing agent of the present invention may be surface-coated and silicified with a silicone oil.
  • the present invention provides a dry powder fire extinguishing agent, wherein the dry powder fire extinguishing agent of the present invention has the following composition (% by weight) based on the total weight of the fire extinguishing agent: Fire extinguishing base:
  • +2 valence and +1 valence metal ion nitrate 20-90%, for example, 60-85%, 35-65%;
  • phosphorus-containing flame retardant 0-75%, for example, 5-55%, 16% - 49%;
  • Other auxiliary ingredients :
  • Catalyst 0% -10%, for example, 2% -8%; talc: 0% -5%, for example 2% -4%;
  • Magnesium stearate 0% -8%, such as 3% -6%;
  • Activated clay 0% -6%, for example 2% -4%;
  • Mica powder 0% -4%, for example 2% -4%;
  • White carbon black 0% -5%, for example 2% -4%
  • the present invention provides a dry powder fire extinguishing agent, wherein the dry powder fire extinguishing agent of the present invention has the following composition in terms of the total weight of the fire extinguishing agent (% by weight):
  • +2 valence and +1 valence metal ion nitrite 20-90%, for example, 60-85%, 35-65%
  • phosphorus-containing flame retardant 0-75%, for example, 5-55%, 16- 49%
  • Other auxiliary ingredients :
  • Catalyst 0% -10% For example, 2% -8%;
  • Talc powder 0% -5%, for example 2% -4%;
  • Magnesium stearate 0% -8%, such as 3% - 6%;
  • Activated clay 0% -6%, for example 2% -4%;
  • mice powder 0% -4%, for example 2% -4%;
  • White carbon black 0% -5%, for example 2% -4%;
  • the present invention provides a dry powder fire extinguishing agent, wherein the dry powder fire extinguishing agent of the present invention has the following composition (by weight) based on the total weight of the fire extinguishing agent:
  • Nitrite mixture 20-90%, for example, 60-85%, 35-65%; phosphorus-containing flame retardant: 0-75%, for example, 5-55%, 16-49%; Other auxiliary ingredients:
  • Catalyst 0% -10%, for example, 2% -8%; talc: 0% -5%, for example 2% -4%;
  • Magnesium stearate 0% -8%, such as 3% -6%;
  • Activated clay 0% -6%, for example 2% -4%
  • Mica powder 0% -4%, for example 2% -4%
  • silica 0% -5%, for example 2% -4%
  • the ratio of nitrate to nitrite in the mixture of nitrate and nitrite is 1:99 to 99:1.
  • the dry powder fire extinguishing agent of the invention can be prepared according to the same preparation method as the existing dry powder fire extinguishing agent, for example, can be prepared by the same preparation method as the existing ammonium phosphate dry powder fire extinguishing agent, in particular, can be described in the following embodiments. Preparation method.
  • the dry powder fire extinguishing agent of the present invention generally has, but is not limited to, an average particle size range of from 1 micrometer to 40 micrometers, and preferably does not contain particles larger than 0.25 inch in the fire extinguishing agent.
  • the dry powder fire extinguishing agent of the present invention has 90% of the fire extinguishing agent particles having a particle size range of from 1 micron to 20 microns.
  • the dry powder fire extinguishing agent with this particle size range in China is an ultra-fine dry powder fire extinguishing agent, and its fire extinguishing performance is further improved compared with the conventional dry powder fire extinguishing agent.
  • the resulting fire extinguishing agent is also referred to as a cold aerosol fire extinguishing agent, which has a higher fire extinguishing efficiency but increases the production cost.
  • the fire extinguishing agent of the present invention can be used in various portable dry powder fire extinguishers, fire extinguishers, fire extinguishing vehicles, fire fighting aircraft, and can also be used in other fire extinguishing devices without pipe networks and in pipe network fire extinguishing systems.
  • the invention also relates to a fire extinguishing device comprising a dry powder fire extinguishing agent of the invention, such as a dry powder fire extinguisher.
  • the invention relates to the use of +2 and +1 valent metal ion nitrates and/or nitrites, alone or in combination with phosphorus-containing flame retardants, for the preparation of dry powder fire extinguishing agents, wherein +2 valence and +1 valence metals Ionic nitrates and nitrites as well as phosphorus-containing flame retardants are as defined above.
  • a dry powder fire extinguishing agent consisting of cerium nitrate, potassium nitrite, potassium dihydrogen phosphate, 5-J ⁇ tetrazole, mica powder, activated clay, magnesium stearate, talc, wherein, based on the total weight of the fire extinguishing agent, The weight percentage of each component is:
  • raw materials such as cerium nitrate, potassium nitrite, potassium dihydrogen phosphate and the like having high water content are baked, and then sent to an ultrafine pulverizer to pulverize the powder having a particle diameter (D 5Q ) of less than 40 ⁇ m.
  • Excipients such as 5-aminotetrazole, mica powder, activated clay, magnesium stearate, and talc are also pulverized into (D 5 ) powders of less than 40 ⁇ m.
  • Example 2 Adding weighed cerium nitrate, potassium nitrite, potassium dihydrogen phosphate pulverized material and auxiliary raw materials 5-aminotetrazole, mica powder, activated clay and magnesium stearate in a mixer for 10-15 minutes. Then, the hydrophobic talc powder is added, the stirring and mixing are continued for 5 minutes, and finally, the dried powder fire extinguishing agent of the present invention is obtained by vacuum drying, sieving off the particles having a size of more than 0.25 mm, and inspecting and packaging.
  • Example 2
  • a dry powder fire extinguishing agent consisting of nitric acid clock, potassium dihydrogen phosphate, ammonium metaphosphate, copper oxide, activated clay, magnesium stearate, talc, white carbon black, wherein, based on the total weight of the fire extinguishing agent, each group The weight percentage of the points is:
  • the dry powder fire extinguishing agent was prepared in a manner similar to that described in Example 1, in which the copper oxide particle size should be less than 1 ⁇ m, with white carbon black and talc.
  • Example 3
  • a dry powder fire extinguishing agent consisting of lithium nitrate, ammonium phosphate, azotetrazolium salt, activated clay, talc, white carbon, silicone oil, wherein the weight of each component is calculated by the total weight of the fire extinguishing agent The content of the fraction is:
  • the dry powder fire extinguishing agent was prepared in a manner similar to that described in Example 1, wherein the silicone oil was stirred and uniformly mixed with lithium nitrate, ammonium phosphate, azotetrazolium salt and activated clay and the powder was heated to 50. After C, it is added together with talc powder and white carbon black, and the mixture is further stirred and mixed for 10 minutes to discharge. Finally, the particles are dried by vacuum, sieved to remove particles having a scale of more than 0.25 mm, and the package is cleaned and packaged to obtain the dry powder fire extinguishing agent of the present embodiment. .
  • Dry powder fire extinguishing agent consisting of nitrous acid clock, ammonium polyphosphate, carbon nanotube, activated clay, mica powder, talcum powder, white carbon, silicone oil, calculated by total weight of fire extinguishing agent, weight percentage of each group The content is:
  • Example 5 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • Example 5 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • a dry powder fire extinguishing agent consisting of nitric acid clock, sodium nitrite, dihydrogen phosphate, triazole potassium salt, activated clay, talcum powder, white carbon black, silicone oil, wherein, based on the total weight of the fire extinguishing agent, each component The weight percentage is:
  • a dry powder fire extinguishing agent consisting of nitric acid clock, potassium dihydrogen phosphate, activated clay, talcum powder, white carbon black, silicone oil, wherein the weight percentage of each component is calculated based on the total weight of the fire extinguishing agent:
  • Example 7 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • Example 7 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • a dry powder fire extinguishing agent consisting of nitric acid clock, iron oxide, activated clay, talcum powder, white carbon black, silicone oil, wherein the weight percentage of each component is: 86% potassium nitrate based on the total weight of the fire extinguishing agent
  • a dry powder fire extinguishing agent consisting of cerium nitrate, ammonium phenate, azo sulphate, activated clay, talc, white carbon, silicone oil, wherein, based on the total weight of the fire extinguishing agent, each component The weight percentage is:
  • Example 9 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • Example 9 The dry powder fire extinguishing agent was prepared in a similar manner to that described in Example 3.
  • a dry powder fire extinguishing agent consisting of potassium nitrate, ammonium pyrophosphate, potassium tetrazolium salt, mica powder, activated clay, magnesium stearate, talc, silicone oil, wherein, based on the total weight of the fire extinguishing agent, each The weight percentage of the components is:
  • the fire extinguishing agent of the dry powder fire extinguishing agent of the invention can reach 3-8 times of the current sodium bicarbonate and calcium silicate salt dry powder fire extinguishing agent, and the pollutants deposited on the ground after fire extinguishing are less than 5 parts of the existing fire extinguishing agent.
  • the pollutants deposited on the ground after fire extinguishing are less than 5 parts of the existing fire extinguishing agent.
  • the fire test space is a 10m 3 relatively closed space with a length X width X height of 2mx2mx2.5m and an ambient temperature of 10-30. C. Ventilation and lighting conditions do not affect the free combustion of the fuel.
  • Fuel in test The disk is a square oil pan with a length and width of 31.65 cm and a height of 15 cm. The bottom area of the oil pan is 0.1 m 2 , and the bottom is made of clean water, and the bottom of the oil pan is 20 cm from the ground.
  • the fuel used was n-heptane and the amount of n-heptane was 3L.
  • the dry powder fire extinguishing agent of the above embodiment of the present invention can extinguish the fire in a shorter time with a smaller amount of the fire extinguishing agent than the ordinary ammonium phosphate dry powder fire extinguishing agent.
  • Table 1 Comparison data of fire extinguishing experiments

Landscapes

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

Abstract

La présente invention concerne un agent d'extinction d'incendie à poudre sèche ayant une efficacité d'extinction d'incendie élevée. La présente invention concerne, de manière spécifique, un agent d'extinction d'incendie à poudre sèche qui peut être utilisé pour éteindre rapidement divers feux de matières solides, liquides et de gaz combustibles ainsi que des incendies électriques. L'agent d'extinction d'incendie utilise du nitrate et/ou du nitrite à ions métalliques de valence +2 ou +1, et une substance ignifuge contenant du phosphore comme matériau de base d'extinction d'incendie, et contient une petite quantité d'un catalyseur permettant d'activer une réaction chimique et d'autres agents additifs permettant d'améliorer les performances physiques d'un corps en poudre de l'agent d'extinction d'incendie. L'agent d'extinction d'incendie a pour avantages une forte capacité d'extinction d'incendie chimique, une efficacité d'extinction d'incendie élevée et une faible pollution.
PCT/CN2013/078802 2013-01-25 2013-07-04 Agent d'extinction d'incendie à poudre sèche Ceased WO2014114059A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201310028282.1 2013-01-25
CN201310028282.1A CN103111035B (zh) 2013-01-25 2013-01-25 一种bc干粉灭火剂
CN2013100775744A CN103170088A (zh) 2013-03-12 2013-03-12 一种abc干粉灭火剂
CN201310077574.4 2013-03-12

Publications (1)

Publication Number Publication Date
WO2014114059A1 true WO2014114059A1 (fr) 2014-07-31

Family

ID=51226876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/078802 Ceased WO2014114059A1 (fr) 2013-01-25 2013-07-04 Agent d'extinction d'incendie à poudre sèche

Country Status (1)

Country Link
WO (1) WO2014114059A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220387835A1 (en) * 2021-03-23 2022-12-08 Techno-TM ZAO Quick-Burning Aerosol-Generating Fuel
US12214237B2 (en) 2020-12-15 2025-02-04 Frs Group, Llc Long-term fire retardant with corrosion inhibitors and methods for making and using same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1322580A (zh) * 2000-05-09 2001-11-21 周枫 气溶胶灭火剂及其制备方法
CN1961997A (zh) * 2006-11-21 2007-05-16 王李懿 全淹没干粉灭火剂
CN201195018Y (zh) * 2006-10-27 2009-02-18 北京市燕苑消防器材厂 超细干粉自喷式灭火装置
CN101862517A (zh) * 2010-07-01 2010-10-20 湖南省金鼎消防器材有限公司 复合型气溶胶灭火剂
CN103111035A (zh) * 2013-01-25 2013-05-22 北京理工大学 一种bc干粉灭火剂
CN103170088A (zh) * 2013-03-12 2013-06-26 北京理工大学 一种abc干粉灭火剂

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1322580A (zh) * 2000-05-09 2001-11-21 周枫 气溶胶灭火剂及其制备方法
CN201195018Y (zh) * 2006-10-27 2009-02-18 北京市燕苑消防器材厂 超细干粉自喷式灭火装置
CN1961997A (zh) * 2006-11-21 2007-05-16 王李懿 全淹没干粉灭火剂
CN101862517A (zh) * 2010-07-01 2010-10-20 湖南省金鼎消防器材有限公司 复合型气溶胶灭火剂
CN103111035A (zh) * 2013-01-25 2013-05-22 北京理工大学 一种bc干粉灭火剂
CN103170088A (zh) * 2013-03-12 2013-06-26 北京理工大学 一种abc干粉灭火剂

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12214237B2 (en) 2020-12-15 2025-02-04 Frs Group, Llc Long-term fire retardant with corrosion inhibitors and methods for making and using same
US12214236B2 (en) 2020-12-15 2025-02-04 Frs Group, Llc Long-term fire retardant with corrosion inhibitors and methods for making and using same
US20220387835A1 (en) * 2021-03-23 2022-12-08 Techno-TM ZAO Quick-Burning Aerosol-Generating Fuel

Similar Documents

Publication Publication Date Title
Ni et al. A new type of fire suppressant powder of NaHCO3/zeolite nanocomposites with core–shell structure
EP3755438B1 (fr) Poudre d'extinction d'incendie pour feux des classes a, b, c, d, f et k et son application pour la suppression d'incendies catastrophiques, l'absorption d'huile et de ses dérivés et la revitalisation de la dégradation des terres provoquée par un incendie
CN102861409B (zh) 一种金属含氧酸盐类灭火组合物
RU2414273C2 (ru) Огнегасящий состав, способ его приготовления и способ пожаротушения
CN103170088A (zh) 一种abc干粉灭火剂
Zhang et al. Hot aerosol fire extinguishing agents and the associated technologies: a review
US4234432A (en) Powder dissemination composition
CN103170085A (zh) 一种有机材料包覆的灭火组合物
WO2013023580A1 (fr) Composition d'extinction d'incendie
WO2012034490A1 (fr) Composition d'extinction d'incendie produisant une substance d'extinction d'incendie par sublimation à haute température
WO2007030982A1 (fr) Agent d'extinction de feu sol-gel aqueux a (hydr)oxyde fortement actif et son application
CN102949800B (zh) 一种铜盐类灭火组合物
CN104258532A (zh) 一种abc超细干粉灭火剂及其制备方法
CN103111035B (zh) 一种bc干粉灭火剂
CN115192953A (zh) 一种有机无机复合的微罐灭火剂及其制备方法
CN105169614A (zh) 一种手持式灭火器用气溶胶灭火剂及其制备方法
WO2014114059A1 (fr) Agent d'extinction d'incendie à poudre sèche
WO2012009270A1 (fr) Composition antifeu biodégradable contenant un dispersant d'hydrocarbures
US2996119A (en) Fire-extinguishing apparatus and method
JPWO2014203935A1 (ja) 消火剤および消火方法
CN113262420A (zh) 一种针对锂电池的灭火剂及其制备方法和用途
CN114053642B (zh) 密封或半密封空间专用灭火剂
WO2013023584A1 (fr) Nouvelle composition d'extinction d'incendie
CN115898510A (zh) 一种抑制煤尘爆炸的复合抑爆剂及其制备方法
WO2019117745A1 (fr) Composition d'extinction d'incendies

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13872594

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13872594

Country of ref document: EP

Kind code of ref document: A1