Smokeless sulfur-free firecracker nitrate medicament and preparation method thereof

A technology for firecrackers and chemicals, applied in explosives processing equipment, explosives, offensive equipment and other directions, can solve problems such as flue gas pollution, and achieve the effects of simple steps, improved mechanical properties and stability, and simple process

Active Publication Date: 2020-04-14
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a smokeless and sulfur-free firecracker nitrate and its preparation method in order to solve the smoke pollution problem existing after the firecracker nitrate is set off.

Method used

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  • Smokeless sulfur-free firecracker nitrate medicament and preparation method thereof
  • Smokeless sulfur-free firecracker nitrate medicament and preparation method thereof
  • Smokeless sulfur-free firecracker nitrate medicament and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A smokeless and sulfur-free firecracker nitrate agent, the mass percentage of each component is as follows:

[0024]

[0025]

[0026] Take 36.57g of nitrobamboo cellulose powder and divide it into two groups of A and B, wherein 6.57g of group A and 30g of group B, and dissolve the nitrobamboo cellulose powder of group A in 65.7g of ethyl acetate, and stir under the condition of ultrasonic dispersion 2 hours, then continue under stirring state, add 1.36g dicyandiamide, 3.49g p-phenylenediamine and 13.25g boron nitride, stir evenly, make nitrocellulose mixed sol;

[0027] In the state of stirring and ultrasonic dispersion, add 66.71g of passivated hexogen, 5.39g of potassium nitrate, and group B nitrobamboo cellulose into the nitrobamboo cellulose mixed sol, mix well and then knead, during the kneading process add 2.15ml of ethyl acetate, knead until it becomes a uniform gelatinous mass with moderate hardness;

[0028] The uniform micelles were granulated with a t...

Embodiment 2

[0032] A smokeless and sulfur-free firecracker nitrate agent, the mass percentage of each component is as follows:

[0033]

[0034]

[0035] Take 3.92kg of nitrobamboo cellulose powder and divide it into two groups, A and B, wherein 1.12kg of group A and 2.8kg of group B, and dissolve the nitrobamboo cellulose powder of group A in 11.2kg of ethyl acetate. Stir for 2.5 hours, then continue to stir, add 0.30kg of dicyandiamide, 0.83kg of p-phenylenediamine and 1.25kg of boron nitride, and stir evenly to obtain a mixed sol of nitrocellulose;

[0036] In the state of stirring and ultrasonic dispersion, add 13.52kg of passivated hexogen, 1.55kg of potassium nitrate and group B nitrobamboo cellulose into the mixed sol of nitrobamboo cellulose, knead after mixing evenly, during the kneading process add 527ml of ethyl acetate, knead until it becomes a uniform gelatinous mass with moderate hardness;

[0037] The uniform micelles were granulated with a twin-screw granulator, pla...

Embodiment 3

[0041] A smokeless and sulfur-free firecracker nitrate agent, the mass percentage of each component is as follows:

[0042]

[0043]Take 7.83kg of nitrobamboo cellulose powder and divide it into two groups, A and B, wherein 2.61kg of group A and 5.22kg of group B, and dissolve the nitrobamboo cellulose powder of group A in 26.1kg of ethyl acetate, Stir for 3 hours, then continue to stir, add 1.02kg of dicyandiamide, 1.43kg of p-phenylenediamine and 4.08kg of boron nitride, and stir evenly to obtain a nitrocellulose mixed sol;

[0044] In the state of stirring and ultrasonic dispersion, add 47.55kg of passivated hexogen, 5.49kg of potassium nitrate and group B nitrobamboo cellulose into the mixed sol of nitrobamboo cellulose, knead after mixing evenly, during the kneading process add 1187ml of ethyl acetate, knead until it becomes a uniform gelatinous mass with moderate hardness;

[0045] The uniform micelles were granulated with a twin-screw granulator, placed in a cool an...

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Abstract

The invention relates to a smokeless sulfur-free firecracker nitrate medicament and a preparation method thereof, and belongs to the field of environment-friendly pyrotechnic compositions. The smokeless sulfur-free firecracker nitrate medicament is prepared from the following components: passivated hexogen, nitrified bamboo cellulose, boron nitride, potassium nitrate, p-phenylenediamine and Dicyandiamide. The passivated hexogen is adopted as a main component, safety and reliability are achieved, no metal powder or sulfur element component is contained, and preparation of the smokeless and sulfur-free firecracker nitrate medicament can be truly achieved; self-made nitrated bamboo cellulose is adopted, the potassium nitrate, the p-phenylenediamine, the boron nitride and the dicyandiamide areintroduced, the mechanical property and stability of the firecracker nitrate medicament can be effectively improved, and the safety of the firecracker nitrate medicament in the production, storage and use processes is guaranteed.

Description

technical field [0001] The invention relates to a smokeless and sulfur-free firecracker nitrate agent and a preparation method thereof, belonging to the field of environment-friendly pyrotechnic agents. Background technique [0002] Fireworks and firecrackers are widely used in Chinese festivals or happy events, and they have been popular for a long time. The setting off of firecrackers has a history of nearly 1,000 years. In recent years, due to the continuous growth of consumption, the lack of environmental protection awareness and the surge of manufacturers, the setting off of fireworks and firecrackers has caused very serious pollution such as smoke, dust, and particles, which has brought unprecedented burdens to the environment and human health. and hazards. [0003] As we all know, pyrotechnic powder is one of the four major inventions in my country. Its main components are potassium nitrate, sulfur and charcoal. Some pyrotechnic powders also contain potassium chlorat...

Claims

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Application Information

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IPC IPC(8): C06B31/24C06B21/00
CPCC06B21/0066C06B31/24
Inventor 刘吉平李年华李琪军刘克普吉伟生于保藏周天驰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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