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Preparation method of waste paper nitrocellulose blasting powder

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

Inactive Publication Date: 2014-01-08
白雪
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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

[0039] A method for preparing waste paper nitrocellulose gunpowder, comprising the following steps in sequence:

[0040] 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%.

[0041] 2. Cellulose drying: Dry the waste paper cellulose to remove excess moisture, and control its moisture content to less than 10%.

[0042] 3. Esterification reaction: The dried waste paper cellulose is esterified with nitric acid compo...

Embodiment 3

[0048] A method for preparing waste paper nitrocellulose gunpowder, comprising the following steps in sequence:

[0049] 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%.

[0050] 2. Cellulose drying: Dry the waste paper cellulose to remove excess moisture, and control its moisture content to less than 10%.

[0051] 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 blasting powder, and belongs to the field of production of waste paper nitrocellulose blasting powder. The preparation method sequentially comprises the following steps: removing impurities in waste paper; drying cellulose; carrying out esterification reaction; carrying out invariability treatment; dehydrating; carrying out forming treatment; drying and packaging to obtain a finished product of the waste paper nitrocellulose blasting powder. The preparation method is used for preparing the nitrocellulose blasting powder from waste paper and can be used for preparing the blasting powder which is low in cost, high in energy and less in environment pollution after combustion, and black powder greatly used in the current firework and cracker industry is replaced with the blasting powder, so that the environment pollution caused when fireworks and crackers are set off is greatly relieved, and meanwhile, the entertainment and practicability of the fireworks and crackers set off by people are achieved.

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 Applications(China)
IPC IPC(8): C06B25/20C08B5/02C08B5/08
Inventor 白雪
Owner 白雪
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