CN1686971A - Powder of firecracker prepared from potassium perchlorate - Google Patents
Powder of firecracker prepared from potassium perchlorate Download PDFInfo
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- CN1686971A CN1686971A CN 200510057003 CN200510057003A CN1686971A CN 1686971 A CN1686971 A CN 1686971A CN 200510057003 CN200510057003 CN 200510057003 CN 200510057003 A CN200510057003 A CN 200510057003A CN 1686971 A CN1686971 A CN 1686971A
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- potassium perchlorate
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Abstract
The present invention relates to a potassium perchlorate fire crackers powder. Its composition includes (by wt%) potassium perchlorate (KClO4) 38.46%-52.63%, sulfur (S) 17.39%-31.82%, aluminium powder (AL) 12.5%-23.81% and ground perlite 8.33%-15.38%. It is safe and low in cost, and its explosive effect is identical to that of potassium chlorate.
Description
Technical Field
The invention relates to firecracker powder, in particular to potassium perchlorate firecracker powder.
Background
Potassium chlorate has strong oxidizability, and can be strongly combusted or exploded by heating, friction or impact after being mixed with organic matters, sulfur, sulfides or other substances easy to oxidize, so that the potassium chlorate is often used as an oxidant to prepare firecracker powder. However, potassium chlorate has poor stability and low melting point, and is an exothermic reaction when heated and decomposed, thereby seriously affecting the safety of the fireworks and crackers in the production, storage, transportation and use processes. Compared with the potassium perchlorate, thepotassium perchlorate has the advantages of better stability, high melting point, difficult deliquescence, heat absorption during thermal decomposition and the like, and the potassium perchlorate is used as a main component to manufacture fireworks and crackers, thereby greatly reducing the sensitivity of the fireworks and crackers and improving the safety. However, the cost of raw materials is increased by using the traditional formula, the cost is higher than 20% of the powder of the potassium chlorate firecracker, and the produced product has unstable quality and low explosion rate, so that the industrialization is difficult to realize.
Disclosure of Invention
The invention aims to provide the potassium perchlorate firecracker powder which is low in cost, stable in quality and safe, and solves the problem that potassium chlorate firecrackers are easy to explode and unsafe in storage, transportation and use.
The specific technical scheme of the invention is that the fireworks and crackers are prepared by the following raw materials: (all percentages are by weight)
Potassium perchlorate (KCLO)4)：38.46％～52.63％
17.39 to 31.82 percent of sulfur (S)
Aluminum powder (AL): 12.5 to 23.81 percent
Perlite powder: 8.33 to 15.38 percent.
By adopting the technical scheme, the cost is reduced, the safety is realized, and the explosion rate is as good as that of gunpowder prepared by potassium chlorate. The components of the invention are prepared by mixing the four components by a conventional method.
The potassium perchlorate used in the invention is powdery and is sieved by a 100-mesh copper sieve. Compared with potassium chlorate, the potassium perchlorate has the melting point of 610 ℃ and is not easy to deliquesce. The heat is absorbed by thermal decomposition, while the melting point of potassium chlorate is 356 ℃ and 370 ℃, the heat is released by thermal decomposition, which is the biggest difference between the two. The chemical reaction formula is as follows:
because the decomposition temperature of potassium perchlorate is higher and the potassium perchlorate absorbs heat during decomposition, the chemical properties of the potassium perchlorate are more stable than those of potassium chlorate, the sensitivity to machinery is lower than that of potassium chlorate, and the potassium perchlorate does not have explosion performance when existing alone. Therefore, the potassium perchlorate used as the oxidant of the firecracker powder greatly reduces the sensitivity of the fireworks and crackers, and improves the safety. The potassium perchlorate is used in the invention, the cost is only increased by 2 percent compared with the cost of potassium chlorate, and the cost of the traditional formula is increased by 20 to 30 percent compared with the cost of potassium chlorate, thus reducing the cost of the product.
The perlite powder used in the invention is prepared by crushing acid lava, and is named because the perlite powder has a powdery perlite crack structure. The perlite has high refractoriness, and the refractoriness of the perlite collected in inner Mongolia areas of China can reach 1200-1330 ℃. Because of the addition of the perlite powder, the flame-retardant and moisture-proof firework has the flame-retardant and moisture-proof effects, and the stability of the fireworks and crackers is further improved.
The aluminum powder is firework aluminum silver powder and can be purchased from the market.
The explosion rate of the firework and cracker product prepared by the formula is the same as that of the product prepared by potassium chlorate, and the product is tested according to the national standard GB10631-89 of the firework and cracker, and each technical index of a sample is sampled and judged to be qualified.
Detailed Description
Examples (1 to 5 examples):
each example was made according to the following procedure: sampling according to the listed components and weight percentage, wherein the potassium perchlorate is powder, sieving by a 100-mesh sieve, then adding the sulfur, the aluminum powder and the perlite powder, mixing by a conventional method, and sieving by a 80-mesh sieve to obtain the finished product, thus being capable of being packaged. The different components of the embodiments are different in percentage, and are respectively shown in the following tables:
example 1
| Potassium perchlorate | Sulfur | Aluminum powder | Perlite powder | |
| Weight (g) | 500 | 250 | 150 | 150 |
| Percent (%) | 47.62 | 23.80 | 14.29 | 14.29 |
Example 2
| Potassium perchlorate | Sulfur | Aluminum powder | Perlite powder | |
| Weight (g) | 576.9 | 477.3 | 215.1 | 230.7 |
| Percent (%) | 38.46 | 31.82 | 14.34 | 15.38 |
Example 3
| Potassium perchlorate | Sulfur | Aluminum powder | Perlite powder | |
| Weight (g) | 1052.6 | 347.8 | 433 | 166.6 |
| Percent (%) | 52.63 | 17.39 | 21.65 | 8.33 |
Example 4
| Potassium perchlorate | Sulfur | Aluminum powder | Perlite powder | |
| Weight (g) | 1250 | 625 | 312.5 | 312.5 |
| Percent (%) | 50 | 25 | 12.5 | 12.5 |
Example 5
| Potassium perchlorate | Sulfur | Aluminum powder | Perlite powder | |
| Weight (g) | 1200 | 785.7 | 714.3 | 300 |
| Percent (%) | 40 | 26.19 | 23.81 | 10 |
Claims (4)
1. The potassium perchlorate firecracker powder withlow cost, stable quality is characterized by being prepared from the following raw materials:
potassium perchlorate (KCLO)4)：38.46％～52.63％
17.39 to 31.82 percent of sulfur (S)
Aluminum powder (AL): 12.5 to 23.81 percent
Perlite powder: 8.33 to 15.38 percent
All percentages are by weight.
2. The potassium perchlorate firecracker powder of claim 1, wherein the potassium perchlorate is a particle of less than 100 mesh.
3. The potassium perchlorate firecracker powder as claimed in claim 2, wherein the sulphur, aluminium powder, perlite powder are particles smaller than 80 mesh.
4. The potassium perchlorate firecracker powder as claimed in claim 1, wherein the potassium perchlorate is 47.62%, the sulfur is 23.8%, the aluminum powder is 14.29%, and the perlite powder is 14.29%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510057003 CN1686971A (en) | 2005-04-06 | 2005-04-06 | Powder of firecracker prepared from potassium perchlorate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510057003 CN1686971A (en) | 2005-04-06 | 2005-04-06 | Powder of firecracker prepared from potassium perchlorate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1686971A true CN1686971A (en) | 2005-10-26 |
Family
ID=35305013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510057003 Pending CN1686971A (en) | 2005-04-06 | 2005-04-06 | Powder of firecracker prepared from potassium perchlorate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1686971A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337855B (en) * | 2008-08-13 | 2011-06-22 | 湖南金能科技实业有限公司 | Oxydant of potassium perchlorate type special for fireworks and method for preparing same |
| CN104649852A (en) * | 2013-11-18 | 2015-05-27 | 吴思华 | Explosive powder composition and exploder provided with explosive powder composition |
| CN106927984A (en) * | 2017-03-15 | 2017-07-07 | 江西佳联科技有限公司 | A kind of powder of firecracker containing active constituent |
| CN108949169A (en) * | 2018-08-30 | 2018-12-07 | 浏阳象形精品烟花出口制造有限公司 | A kind of illuminating agent for submerged combustion |
| CN113091522A (en) * | 2021-04-16 | 2021-07-09 | 李亮 | Method for producing multi-sound colorful sand firecracker |
-
2005
- 2005-04-06 CN CN 200510057003 patent/CN1686971A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337855B (en) * | 2008-08-13 | 2011-06-22 | 湖南金能科技实业有限公司 | Oxydant of potassium perchlorate type special for fireworks and method for preparing same |
| CN104649852A (en) * | 2013-11-18 | 2015-05-27 | 吴思华 | Explosive powder composition and exploder provided with explosive powder composition |
| CN106927984A (en) * | 2017-03-15 | 2017-07-07 | 江西佳联科技有限公司 | A kind of powder of firecracker containing active constituent |
| CN108949169A (en) * | 2018-08-30 | 2018-12-07 | 浏阳象形精品烟花出口制造有限公司 | A kind of illuminating agent for submerged combustion |
| CN113091522A (en) * | 2021-04-16 | 2021-07-09 | 李亮 | Method for producing multi-sound colorful sand firecracker |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |