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Method For Reclaiming Explosive From Warhead By Supercritical Fluid

A supercritical fluid and warhead technology, applied in the direction of ammunition, offensive equipment, weapon accessories, etc., can solve the problem of high processing cost, achieve the effects of low processing temperature, short processing time, and increased separation percentage

Active Publication Date: 2014-09-10
TAIWAN SUPERCRITICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In supercritical carbon dioxide gas at a temperature of 65°C and a pressure of 27.6MPa, to extract 6,600 grams of trinitrotoluene from the warhead of a 155mm cannon howitzer, 412.5 liters of supercritical carbon dioxide liquid will be used, and the extraction tank must have 415 liters capacity and high processing cost

Method used

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  • Method For Reclaiming Explosive From Warhead By Supercritical Fluid
  • Method For Reclaiming Explosive From Warhead By Supercritical Fluid
  • Method For Reclaiming Explosive From Warhead By Supercritical Fluid

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Example 1: Separation of trinitrotoluene at low temperature

[0041] A simulated warhead with 60 grams of trinitrotoluene with a diameter of 40 mm is fixed on a drug-removing rack 60 with the opening facing down, and the drug-removing rack 60 and the warhead (i.e. the projectile body) are put into a separation groove 50 together. Then it is sealed, and when the supercritical carbon dioxide fluid is supplied to the separation tank 50, the separation of trinitrotoluene from the warhead begins. The separation percentages of trinitrotoluene are listed in Table 1 below during the 30-minute separation operation at different temperatures and pressures.

[0042] Table 1

[0043]

[0044]

[0045] The separation rate of trinitrotoluene is to divide the weight of trinitrotoluene after separation by the weight of trinitrotoluene before separation, and then take the percentage (%).

Embodiment 2

[0046] Embodiment two: low temperature separation trinitrotoluene

[0047] A simulated warhead with a volume of 250ml and 250 grams of trinitrotoluene is fixed on a drug-removing rack 60 with the opening facing down, and the drug-removing rack 60 and the warhead are put into a separation tank 50 together and then sealed. When supercritical carbon dioxide is supplied to the separation tank 50 maintained at a temperature of about 55° C. and a pressure of about 25 MPa, trinitrotoluene starts to be separated from the warhead. The separation operation took about 30 minutes, and the result was: after the separation operation, about 0 grams of trinitrotoluene remained in the warhead, and about 241 grams of trinitrotoluene were collected in the trinitrotoluene collection tank.

Embodiment 3

[0048] Embodiment three: low temperature separation trinitrotoluene

[0049] A simulated bullet with a volume of 350ml and 500 grams of trinitrotoluene is fixed on a drug-removing rack 60 with the opening facing down, and the drug-removing rack 60 and the warhead are put into a separation tank 50 together and then sealed. When critical carbon dioxide is supplied to the separation tank 50 maintained at a temperature of about 55° C. and a pressure of about 25 MPa, trinitrotoluene starts to be separated from the warhead. The separation operation took about 30 minutes, and the result was: after the separation operation, about 0 grams of trinitrotoluene remained in the warhead, and about 490 grams of trinitrotoluene were collected in the trinitrotoluene collection tank.

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Abstract

A method for reclaiming an explosive from a warhead by a supercritical fluid is disclosed. The method includes: the steps of loading a cannonball shell body containing an explosive component into an striping down vessel; supplying the supercritical fluid to the striping down vessel; contacting the cannonball shell body with the supercritical fluid at a temperature below the melting point of the explosive component and at a pressure sufficient to strip down the explosive component; and performing a sonicating process on the striping down vessel simultaneously at a frequency of 0.01 MHz to -10 MHz.

Description

technical field [0001] The present invention relates to a kind of separation method of warhead drug removal with supercritical fluid, especially refers to a kind of separation method under low temperature condition, with supercritical carbon dioxide fluid batch trinitrotoluene (2-methyl-1,3,5 -trinitrobenzene, TNT) separation method for separating drug removal. Background technique [0002] How to safely and efficiently remove obsolete military munitions from active-duty arsenals receives significant attention, and demilitarization programs often focus on discarding or sabotaging. Recent efforts have been made to develop recovery and / or recycling methods for environmental protection, so that explosives and higher value components of armament systems can be recovered and reused in military applications. [0003] The traditional abolishment of military ammunition separation technology includes the separation of high-energy explosives from the launch case by means of melt-out,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B33/00
Inventor 李金树叶早发陆开泰邱永和陈硕修
Owner TAIWAN SUPERCRITICAL TECH