Environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent as well as preparation method and application thereof

An aqueous film-forming and fire extinguishing agent technology, applied in fire prevention equipment, etc., can solve the problems of no sulfonated kerosene fire extinguishing agent, economic losses, etc.

Active Publication Date: 2022-07-29
CHONGQING KOOPPER CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the hydrometallurgical process, the extraction agent used in the extraction process contains a large amount of sulfonated kerosene, which will easily cause serious economic losses in case of fire
At the present stage, metallurgical companies often use Class B fire extinguishing agents commonly used in the market, and there is no fire extinguishing agent specifically for sulfonated kerosene. Therefore, it is urgent to develop a fire extinguishing agent for sulfonated kerosene

Method used

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  • Environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent as well as preparation method and application thereof
  • Environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent as well as preparation method and application thereof
  • Environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] The preparation method of environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent comprises the following steps:

[0044] Step 1: mix short-chain fluorocarbon surfactant and hydrocarbon surfactant in proportion, then add water and stir to obtain system I;

[0045] Step II: add a foaming agent and a foam stabilizer to the system I, stir evenly, and heat up to 50-60° C. to obtain the system II;

[0046]Step III: adding a cosolvent to the system II, stirring uniformly, adding an anti-burning agent and stirring to obtain the system III;

[0047] Step IV: after cooling the system III to room temperature, add antifreeze and preservative, stir evenly to obtain the finished product.

[0048] The application of the prepared environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent in the fire extinguishing of the hydrometallurgical extractant.

Embodiment 1

[0050] The preparation method of the environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent in this embodiment includes the following steps:

[0051] Step 1: the short-chain fluorocarbon surfactant and sodium lauryl sulfate are compounded according to the molar ratio of 1:6, totaling 21 parts, then adding the remaining water and stirring; wherein the fluorine-containing short-chain fluorocarbon surfactant The number of C atoms is 4;

[0052] Step II: add 2.5 parts of cocamidopropyl betaine and 1.5 parts of lauryl amidopropyl amine oxide, stir evenly;

[0053] Step III: heat up to 50°C, add 1.8 parts of urea, after stirring evenly, slowly add 0.005 part of xanthan gum, and stir evenly;

[0054] Step IV: After cooling down to room temperature, add 0.6 part of propylene glycol butyl ether and 2 parts of sodium hydrogen diacetate, and stir evenly to obtain the environment-friendly fluorine-containing water film-forming fire extinguishing agent prod...

Embodiment 2

[0056] The preparation method of the environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent in this embodiment includes the following steps:

[0057] Step 1: the short-chain fluorocarbon surfactant and sodium α-alkenyl sulfonate are compounded according to the molar ratio of 4:1, totaling 8 parts, then adding the rest of the water and stirring; wherein the short-chain fluorocarbon surfactant contains The number of fluorine C atoms is 4;

[0058] Step II: add 1.6 parts of sodium carboxymethyl cellulose and 2 parts of coconut oil diethanolamide, stir evenly;

[0059] Step III: heating up to 52°C, adding 1.3 parts of urea, stirring uniformly, slowly adding 0.04 part of polyethylene glycol, stirring uniformly;

[0060] Step IV: After cooling to room temperature, add 0.4 part of propylene glycol butyl ether and 1.8 part of sodium hydrogen diacetate, and stir evenly to obtain the environmentally friendly fluorine-containing water film-forming fire ex...

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Abstract

The invention relates to the field of aqueous film-forming fire extinguishing agents, and discloses an environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent and a preparation method and application thereof.The environment-friendly fluorine-containing aqueous film-forming fire extinguishing agent is prepared from, by mass, 4-25 parts of a composite surfactant, 1.5-2.5 parts of a foaming agent, 1.5-2.6 parts of a foam stabilizer, 0.005-0.07 part of an anti-burning agent, 0.4-1.5 parts of an anti-freezing agent, 0.5-2 parts of a preservative, 0.9-3 parts of a cosolvent and water; the composite surfactant is formed by mixing a short-chain fluorocarbon surfactant and a hydrocarbon surfactant. The short-chain fluorocarbon surfactant in the scheme contains less than 6 fluorocarbon atoms, is easy to biodegrade and is more environment-friendly, the thickness of a foam layer formed on the combustible liquid hydrocarbon surface is high, reburning is better prevented, and the anti-burning time is prolonged; meanwhile, the surface tension is low, and the interfacial tension is low. And the interfacial tension with sulfonated kerosene is low, and the diffusion coefficient is high, so that the aqueous film-forming fire extinguishing agent is easier to spread on the surface of the aqueous film-forming fire extinguishing agent, the fire extinguishing is more efficient, and the fire caused by the extraction agent in the metallurgical process can be effectively extinguished.

Description

technical field [0001] The invention relates to the field of aqueous film-forming fire-extinguishing agents, in particular to an environment-friendly fluorine-containing aqueous film-forming fire-extinguishing agent and a preparation method and application thereof. Background technique [0002] Fluorocarbon surfactants are widely used in industry. However, with the gradual deepening of the understanding of fluorocarbon surfactants, it has been found that they have the ability to accumulate substances in the human body and migrate to the remote environment, especially those containing more than 8 carbon atoms. The fluorocarbon surfactants have a strong threat to both organisms and the environment, on the contrary, the lower the number of carbon atoms, the easier it is to biodegrade. [0003] Aqueous film-forming fire extinguishing agent is a foam fire extinguishing agent mainly composed of fluorocarbon surfactant and hydrocarbon surfactant. effect. The main mechanisms of fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00
CPCA62D1/0064A62D1/0042Y02P10/20
Inventor 叶丽莉邹潜徐志刚刘龙成李朝亮王永茜汪世川石天宝
Owner CHONGQING KOOPPER CHEM IND
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