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A dangerous ion salt preparation system combining chaotic flow and block flow

A preparation system and dangerous technology, applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as increased residence time in pipelines, inability to achieve online separation, and low reaction efficiency. Achieve the effects of shortening the time required for the reaction, realizing high-throughput screening and mass production, and solving safety problems

Active Publication Date: 2021-10-22
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the mixing between the reaction liquids mainly depends on the free diffusion of microfluids, the mixing is relatively slow, and the mixing efficiency is relatively low; on the other hand, the residence time is greatly increased due to the excessive length of the pipeline, resulting in low reaction efficiency
At the same time, the post-treatment of the reaction solution has not been optimized, and online separation cannot be achieved
In summary, the existing methods still face some urgent problems to be solved while completing the preparation of energetic materials.

Method used

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  • A dangerous ion salt preparation system combining chaotic flow and block flow
  • A dangerous ion salt preparation system combining chaotic flow and block flow
  • A dangerous ion salt preparation system combining chaotic flow and block flow

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1: Preparation of dangerous ionic salt barium trinitroresorcinol

[0050] Use n-tetradecane as the continuous phase carrier liquid 4, magnesium trinitroresorcinol solution and barium nitrate solution as the reaction solution 5; prepare 5 mL of magnesium trinitroresorcinol solution of 0.05 mol / L, and adjust the pH value to 4.5, prepare 5 mL of 0.05 mol / L barium nitrate solution, adjust the pH value to 5.0, and place the two reaction solutions in the fluid drive unit 2 3, and the solution injection rate is controlled by the computer to be 0.1 mL / min; , put n-tetradecane in the fluid drive unit 1, and the solution injection rate is controlled by the computer to be 0.8mL / min; Set the temperature of the crystallization unit at 25°C; align the PTFE pipe port with the 10mL scale line inside the separation column 12, and connect the one-way valve group, syringe pump and suction filtration device; open the fluid drive unit 2 3 to push the reaction solution 5 into PTF...

Embodiment 2

[0051] Embodiment 2: Preparation of dangerous ionic salt lead trinitroresorcinol

[0052] Use n-tetradecane as the continuous phase carrier liquid 4, magnesium trinitroresorcinol solution and lead nitrate solution as the reaction solution 5; prepare 5 mL of magnesium trinitroresorcinol solution of 0.05 mol / L, and adjust the pH value to 4.5, prepare 5 mL of 0.05 mol / L barium nitrate solution, adjust the pH value to 5.0, and place the two reaction solutions in the fluid drive unit 2 3, and the solution injection rate is controlled by the computer to be 0.5 mL / min; , put n-tetradecane in the fluid drive unit 1, and the solution injection rate is controlled by the computer to be 2.0mL / min; the temperature of the synthesis unit is set to 65° C. Set the temperature of the crystallization unit at 30°C; align the PTFE pipe port with the 10mL scale line inside the separation column 12, and connect the one-way valve group, syringe pump and suction filtration device; open the fluid drive...

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Abstract

The invention discloses a dangerous ion salt preparation system combining chaotic flow and block flow, comprising a computer control unit controlling a fluid drive unit through a program; the fluid drive unit drives the reaction liquid to a chaotic flow micro-mixer to realize rapid mixing, and The continuous phase carrier liquid is sent to the block unit to shear the reaction liquid to form droplets of uniform size and enter the synthesis unit; the synthesis unit includes a temperature control device, coiler 1 and the PTFE pipe coiled on it; the crystallization unit includes a temperature control device , coiler 2 and the PTFE pipe coiled on it; the sample separation unit is used to realize the sequential separation of the continuous phase carrier liquid and reaction liquid, reaction liquid and solid product; the connecting component is the connector between each unit; the chaotic flow Multiple sets of micro-mixers and block units can be combined in parallel. The system of the invention can realize fast and safe preparation of dangerous ion salts, and can carry out on-line separation of synthetic products.

Description

technical field [0001] The invention relates to the field of pyrotechnics and detonating devices, in particular to a dangerous ion salt preparation system combining chaotic flow and block flow. Background technique [0002] Dangerous ionic salts are essentially equivalent to energetic ionic salts. As a kind of energetic materials, they are widely used in engineering blasting, aerospace, explosive forming, weapon systems, etc., and play a key role in promoting the progress of human society. The preparation of dangerous ionic salts is to use the method of combinatorial chemistry to quickly obtain a large number of ionic salt compounds through the free combination of cations and anions. Dangerous ionic salt is a kind of energetic material, its main characteristic is that it is sensitive to external effects, and can explode under the action of small external effects, such as impact, friction, flame, heating, static spark, etc. And quickly changed from burning to detonation. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00B01J4/02B01J4/00
CPCB01J4/001B01J4/008B01J4/02B01J19/0013B01J2204/002B01J2204/005B01J2204/007B01J2219/0009
Inventor 朱朋陈聪夏焕明沈瑞琪叶迎华吴立志张伟胡艳
Owner NANJING UNIV OF SCI & TECH