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Preparation method of waste paper nitrocellulose gunpowder

A technology for nitrocellulose and cellulose, which is applied in the directions of nitrocellulose components, explosives, offensive equipment, etc., can solve the problems of inability to produce nitrocellulose, complex production process, and high cost, and achieve low cost, low environmental pollution, and low pollution. Effect

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of raw materials (refined cotton or wood pulp) used in its production process is very high, and the production process is complicated, resulting in high cost (several times that of black powder), so the high cost makes it popular in the fireworks and firecrackers industry. The amount of nitrocellulose is very small, which is its shortcoming, and the existing nitrocellulose production technology cannot use waste paper to produce nitrocellulose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing waste paper nitrocellulose gunpowder, comprising the following steps in sequence:

[0031] 1. Removal of impurities in waste paper: The impurities in waste paper are treated to purify them. The specific steps include soaking in water, crushing, and degreasing in sequence. The degreasing temperature is <150°C, the degreasing pressure is <10㎏ / c㎡, and the degreasing time is < 10 hours, degreasing lye (sodium hydroxide, sodium carbonate, sodium bicarbonate, calcium hydroxide, sodium silicate and other alkaline substances), its mass percentage concentration <10%, the α in the purified waste paper cellulose -The mass percentage of cellulose is more than 70%, and the mass percentage of impurities is less than 30%.

[0032] 2. Cellulose drying: Dry the waste paper cellulose to remove excess moisture, and control its moisture content to less than 10%.

[0033] 3. Esterification reaction: The dried waste paper cellulose is subjected to esterification react...

Embodiment 2

[0038] A method for preparing waste paper nitrocellulose gunpowder, comprising the following steps in sequence:

[0039] 1. Removal of impurities in waste paper: The impurities in waste paper are treated to purify them. The specific steps include soaking in water, crushing, and degreasing in sequence. The degreasing temperature is <150°C, the degreasing pressure is <10㎏ / c㎡, and the degreasing time is < 10 hours, degreasing lye (sodium hydroxide, sodium carbonate, sodium bicarbonate, calcium hydroxide, sodium silicate and other alkaline substances), its mass percentage concentration <10%, the α in the purified waste paper cellulose -The mass percentage of cellulose is more than 70%, and the mass percentage of impurities is less than 30%.

[0040] 2. Cellulose drying: Dry the waste paper cellulose to remove excess moisture, and control its moisture content to less than 10%.

[0041] 3. Esterification reaction: The dried waste paper cellulose is esterified with nitric acid compo...

Embodiment 3

[0046] A method for preparing waste paper nitrocellulose gunpowder, comprising the following steps in sequence:

[0047] 1. Removal of impurities in waste paper: The impurities in waste paper are treated to purify them. The specific steps include soaking in water, crushing, and degreasing in sequence. The degreasing temperature is <150°C, the degreasing pressure is <10㎏ / c㎡, and the degreasing time is < 10 hours, degreasing lye (sodium hydroxide, sodium carbonate, sodium bicarbonate, calcium hydroxide, sodium silicate and other alkaline substances), its mass percentage concentration <10%, the α in the purified waste paper cellulose -The mass percentage of cellulose is more than 70%, and the mass percentage of impurities is less than 30%.

[0048] 2. Cellulose drying: Dry the waste paper cellulose to remove excess moisture, and control its moisture content to less than 10%.

[0049] 3. Esterification reaction: The dried waste paper cellulose is subjected to esterification react...

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Abstract

The invention discloses a preparation method of waste paper nitrocellulose gunpowder, which belongs to the field of production of nitrocellulose gunpowder, and comprises the following steps in sequence: waste paper removal of impurities, cellulose drying, esterification reaction, stabilization treatment, and dehydration , forming treatment, drying and packaging to obtain the finished waste paper nitrocellulose gunpowder. The present invention is a method for preparing nitrocellulose gunpowder by using waste paper. It prepares a gunpowder with low cost, high energy and little environmental pollution after burning, and uses it to replace the black powder widely used in the fireworks and firecracker industry, thereby The pollution to the environment when setting off fireworks and firecrackers is greatly reduced, and at the same time, the entertainment and practicability of people setting off fireworks and firecrackers are also satisfied.

Description

technical field [0001] The invention belongs to the field of production and manufacture of nitrocellulose gunpowder, in particular to the technical field of producing nitrocellulose and gunpowder by using waste paper. Background technique [0002] Nitrocellulose is a special material that contains energy and is also a raw material for making gunpowder. The gunpowder made of this material burns without smoke, so it is also called smokeless medicine. The fireworks and firecrackers made of it have higher cost, but the energy Large, smokeless after burning, and less environmental pollution. It is an ideal substitute product for the black powder widely used in the fireworks and firecracker industry. The black powder is characterized by low cost, low energy, and a lot of smoke after burning, so it pollutes the environment heavily. [0003] At present, the energetic materials used in the fireworks and firecrackers industry are mainly black powder, and other energetic materials are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/20C08B5/02C08B5/08
Inventor 白雪
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