Synthesis device and method of gaseous extinguishing agent

A technology for gas fire extinguishing agent and synthesis device, which is applied in chemical/physical/physical chemistry fixed reactor, dehydrohalogenation preparation, organic chemistry, etc., can solve the problem of inability to synthesize halon in one step and replace clean gas fire extinguishing agent, etc. To achieve the effect of easy installation, disassembly, cleaning and preservation, easy observation of the reaction process, and avoidance of corrosion

Active Publication Date: 2014-05-21
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The present invention aims to solve the problem that halon cannot be synthesized in one step to replace clean gas fire extingu

Method used

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  • Synthesis device and method of gaseous extinguishing agent

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Embodiment Construction

[0032] Such as figure 1 As shown, the synthesis device of halon in this embodiment instead of clean gas fire extinguishing agent is provided with a reactor 1, a heating jacket 2 is arranged on the side wall of the reactor 1; an agitator insertion port is arranged on the top of the reactor 1 3. Gas inlet 6, liquid bromine feed port 11, lye feed port 15, gas outlet 19 and thermometer socket 28; the bottom of the reactor 1 is provided with a discharge port 26 sealed by a sealing plug 27;

[0033] The stirrer 4 is inserted into the inside of the reactor 1 through the stirrer insertion port 3, and the bottom end of the stirrer 4 is connected with a stirring paddle 5 at a position below the inner center of the reactor 1; the stirrer insertion port 3 is arranged at the center of the top of the reactor Position, which can ensure that the agitator is located at the central axis of the reactor to improve the stirring efficiency.

[0034] One end of the gas inlet conduit 7 is inserted i...

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Abstract

The invention discloses a synthesis device and method of a gaseous extinguishing agent. The synthesis device is characterized in that a reaction still is connected with an agitator, a trifluoropropene storage tank, a liquid bromine storage tank, an alkali liquor storage tank and a fractional distillation tube, the tail end of a branch tube of the fractional distillation tube goes into a collecting bottle, the adding order of raw materials can be controlled through a plurality of switching valves, and halon is synthesized by one step to substitute for a clean gaseous extinguishing agent. Three operation steps of addition, elimination and fractionation can be performed in the synthesis device, and the whole synthesis flow is free from transferring of any intermediate product from the step of feeding materials to the step of obtaining the target product, so that the material loss is avoided, the reaction yield is improved, the reaction time is saved, and the reaction efficiency is improved.

Description

technical field [0001] The invention belongs to the field of fire extinguishing agent synthesis, and in particular relates to a synthesis method and device suitable for halon to replace clean gas fire extinguishing agents. Background technique [0002] With the gradual elimination of halon fire extinguishing agent, various halon substitute fire extinguishing agent products are constantly emerging. 2-Bromo-3,3,3-trifluoropropene (2-BTP) is considered to be the most potential clean and efficient halon alternative fire extinguishing medium. The preparation method of 2-BTP mainly adopts the addition of liquid bromine and trifluoropropene, then eliminates it through alcohol-alkali solution, and obtains the target product through fractional distillation. Due to the high viscosity of the alcohol-alkali solution, more alkali metal bromide salts are generated during the elimination process, and the precipitate needs to be separated from the mother liquor during the fractionation pro...

Claims

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Application Information

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IPC IPC(8): B01J19/18C07C21/18C07C17/25
Inventor 倪小敏郑化桂张少刚赵媚
Owner UNIV OF SCI & TECH OF CHINA
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