Unlock instant, AI-driven research and patent intelligence for your innovation.

Environment-friendly gunpowder for fireworks and firecrackers

A technology for firecrackers and fireworks, which is applied in the direction of nitrating acyclic/alicyclic/heterocyclic amine explosive compositions, etc., can solve problems such as slight smoke and environmental impact, and achieve the effect of reducing fire hazards

Inactive Publication Date: 2019-12-20
周昭坤
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of gunpowder will still produce micro smoke and toxic and harmful solid pollutants after burning, and a large amount of use will have a serious impact on the environment

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: The molecular formula of silver nitrotetrazole is CHN 5 AgO 2 ,

[0023] Its structural formula is shown in the figure:

[0024] Preparation method: Dissolve 10 grams of 5-aminotetrazole in 150 milliliters of water and heat to 75 degrees Celsius. Dissolve 22 grams of sodium nitrite in 150 milliliters of water and heat to 60 degrees Celsius. Slowly drop 1 g of sodium nitrite solution into the 5-aminotetrazole solution, raise the temperature of the mixed solution to 80°C and keep it for 1 hour. While stirring, 107 milliliters of 1.1 molar silver nitrate solution was added to the mixed solution to produce a yellow-white precipitate, which was naturally cooled to room temperature and filtered by suction to obtain silver nitrotetrazole.

Embodiment 2

[0025] Embodiment two: the molecular formula of copper nitrotetrazole is CHN 5 CuO 2 ,

[0026] Its structural formula is shown in the figure:

[0027] Preparation method: Dissolve 10 grams of 5-aminotetrazole in 150 milliliters of water and heat to 75 degrees Celsius. Dissolve 22 grams of sodium nitrite in 150 milliliters of water and heat to 60 degrees Celsius. The sodium nitrite solution was slowly dropped into the 5-aminotetrazole solution, and the temperature of the mixed solution was raised to 80°C and kept for 1 hour to obtain a sodium nitrotetrazole solution. Add 12 grams of cuprous chloride to 100 ml of water, add sodium nitrotetrazole solution while stirring, heat up to reflux temperature, react for 2 hours, naturally cool to room temperature, filter with suction, and dry in an oven at 50 degrees to obtain nitro Copper tetrazolium.

[0028] Among them, the compound containing both azo functional group and tetrazole functional group in the tetrazole compound is...

Embodiment 3

[0029] Example 3: The molecular formula of 5,5'-azotetrazole zinc salt is C 2 N 10 Zn,

[0030] Its structural formula is shown in the figure:

[0031] Preparation method: Dissolve 10 grams of 5,5'-azotetrazole sodium salt and 11 grams of barium chloride in 100 ml of water to form a 5,5'-azotetrazole barium precipitate, vacuum filter, and remove the precipitate The substance was dissolved in 100 ml of water again, 100 ml of barium chloride solution with a molar concentration of 1.1 was added, heated to boiling and stirred for 5 minutes, cooled to room temperature naturally, filtered with suction, and dried in an oven at 50 degrees to obtain 5,5'- Azotetrazole zinc salt.

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 environment-friendly gunpowder for fireworks and firecrackers. The environment-friendly gunpowder comprises a tetrazole compound containing a tetrazole functional group; the tetrazole compound is a heterocyclic compound and is a tetrazole compound containing a four-nitrogen five-membered ring, having the molecular formula of CN4H2 and used for fireworks and firecrackers. The tetrazole compound comprises silver nitrotetrazole having the molecular formula of CHN5AgO2 and nitro tetrazole copper having the molecular formula of CHN5CuO2; a compound in the tetrazole compoundcontains not only an azo functional group but also a tetrazole functional group and is an azotetrazole compound, can be used for fireworks and firecrackers and comprises 5,5'-azotetrazole zinc salt and bis(triaminoguanidine)5,5'-azotetrazole salt, wherein the 5,5'-azotetrazole zinc salt has the molecular formula of C2N10Zn, and the bis(triaminoguanidine)5,5'-azotetrazole salt has the molecular formula of C4H18N22. The environment-friendly gunpowder for fireworks and firecrackers takes the tetrazole compound as a main component, and is gunpowder for fireworks and firecrackers, wherein the gunpowder does not generate solid pollutants or only generates an extremely small amount of solid pollutants after decomposition, combustion and explosion.

Description

technical field [0001] The invention relates to the technical field of fireworks, in particular to an environment-friendly gunpowder for fireworks and firecrackers. Background technique [0002] Gunpowder, as the name suggests, is a chemical that can be caused to burn violently by sparks, flames, etc. The traditional propellant used in the existing fireworks and crackers is black powder. Black powder is the main chemical component of fireworks and firecrackers. It has a history of more than one thousand years. Its composition is potassium nitrate (or potassium chlorate, Potassium perchlorate), charcoal and sulfur will generate potassium sulfide after combustion or explosion, which will be dispersed in the air in the form of solid particles, causing a large amount of smoke to fill the air, causing air pollution, and at the same time causing serious damage to the eyes, nose and throat. irritating. [0003] In response to the national environmental protection call, there are ...

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
IPC IPC(8): C06B25/34
CPCC06B25/34
Inventor 周昭坤王巧传普
Owner 周昭坤