Supercharge Your Innovation With Domain-Expert AI Agents!

Open type microwave pretreatment method for gunpowder and dynamite samples

A microwave pretreatment and open technology, applied in the field of explosives, can solve the problems of time-consuming, low extraction and separation efficiency, etc., and achieve the effects of improving extraction efficiency, shortening pretreatment time, and reducing the risk of explosion and combustion

Inactive Publication Date: 2013-06-05
XIAN MODERN CHEM RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the defects of time-consuming and low extraction and separation efficiency of the above-mentioned existing propellant sample pretreatment method, the purpose of the present invention is to provide a fast and accurate open microwave extraction test method for propellant and explosive samples

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Open type microwave pretreatment method for gunpowder and dynamite samples
  • Open type microwave pretreatment method for gunpowder and dynamite samples
  • Open type microwave pretreatment method for gunpowder and dynamite samples

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1. Open Microwave Extraction Method Research of Small Molecule Organic Matter in a Double-Based Drug

[0027] The present embodiment is to extract NG, TNT, DNT and C in a certain double base gunpowder 2 and other small molecules. The double-base gunpowder contains small molecules NG, TNT, DNT, C 2 , these small molecular organics and macromolecular NCs are fused with each other through a prescribed process to form a homogeneous bulk substance. In the original process, the quantitative standards of these small molecular organic substances were firstly subjected to Soxhlet extraction with method 102.1 in GJB770B-2005 for 2-3 hours, separated from NC, made into a sample solution, and then quantified by chromatography.

[0028] The samples are scraped into flakes according to method 101.1 in GJB770B-2005, and then extracted with open microwave. It is necessary to determine: extraction solution, extraction temperature, extraction time, extraction solution volume a...

Embodiment 2

[0045] Example 2. Open Microwave Extraction of Small Molecule Organic Compounds in a Three-Basic Drug

[0046] A certain three basic medicine contains NQ, NG, C 2 , NC and other components, use the above open microwave extraction method to extract NQ, NG, C in the sample 2 Extracted and then detected by HPLC method. It can be seen from Table 1 that the components NQ, NG, and C 2 It can be dissolved in 75% ethanol aqueous solution but NC is insoluble. Accurately weigh two portions of 0.1g of each of the three basic medicines, accurate to 0.0001g, add 80ml of 75% ethanol aqueous solution, extract by microwave at 77°C for 0.75hr, transfer to two 100ml volumetric flasks and filter at constant volume to obtain a sample solution At the same time, the solution prepared by titration method was used as the standard solution for HPLC detection, and the microwave extraction efficiency was calculated. NQ was 100.4%, 99.3%, NG was 100.9%, 100.6%, and C 2 are 99.8% and 100.4%, which s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an open type microwave pretreatment method for gunpowder and dynamite samples. The invention is mainly characterized in that: gunpowder and dynamite samples of a same batch are processed into sample blocks with appropriate dimension; the sample blocks are accurately weighed and added into an extraction tank, and an extraction solvent is added; an obtained mixture is placedin an open type microwave instrument, and open type extraction is carried out after appropriate microwave extraction temperature is selected. When a sample solution is obtained, subsequent component content analysis can be carried out according to a normal method. The method enables the problems of great consumption of time and poor repeatability of extraction results in pretreatment of gunpowderand dynamite samples to be overcome and provides reliable data for design and application of a formula for gunpowder and dynamite.

Description

technical field [0001] The invention belongs to the technical field of explosives, and mainly relates to a pretreatment method for explosives, in particular to an open microwave pretreatment method for explosives samples. Background technique [0002] Gunpowder can be used as projectile propellant and rocket propellant; explosives can be used in the military as explosive charges for ammunition such as artillery shells, aerial bombs, missiles, mines, torpedoes, and grenades, as well as detonators for nuclear bombs and military blasting. It is widely used in mining, road construction, water conservancy construction, engineering blasting, metal processing, etc., and also widely used in scientific and technological fields such as seismic exploration. In the field of explosives analysis, due to the rapid development of modern analysis technology, the detection breadth, precision and analysis efficiency have been qualitatively improved. However, the sample preparation technology,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
Inventor 张皋贾林胡岚任春燕严蕊
Owner XIAN MODERN CHEM RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com