CN101337855B - Oxydant of potassium perchlorate type special for fireworks and method for preparing same - Google Patents

Oxydant of potassium perchlorate type special for fireworks and method for preparing same Download PDF

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Publication number
CN101337855B
CN101337855B CN2008100320625A CN200810032062A CN101337855B CN 101337855 B CN101337855 B CN 101337855B CN 2008100320625 A CN2008100320625 A CN 2008100320625A CN 200810032062 A CN200810032062 A CN 200810032062A CN 101337855 B CN101337855 B CN 101337855B
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China
Prior art keywords
potassium perchlorate
potassium
oxidant
fireworks
parts
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Expired - Fee Related
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CN2008100320625A
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Chinese (zh)
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CN101337855A (en
Inventor
郭子庭
邱朝阳
贺秋兰
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Huzhou KENON Science & Technology Co., Ltd.
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Huzhou Kenon Science & Technology Co Ltd
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Abstract

The invention relates to a special potassium perchlorate oxidant for fireworks, particularly to an oxidant for producing fireworks and a preparation method thereof. The oxidant contains potassium perchlorate as the main component and no potassium chlorate as well as banned substances prescribed by the state. The key point of the invention is that a surfactant is used for modifying the potassium perchlorate and that other functional materials are added to improve the use and the storage properties of the potassium perchlorate. The oxidant solves the problems such as agglomeration of potassium perchlorate product after long-term storage, difficulty in firing the prepared oxidant, the need of a special high-potassium lead, easy extinguishing of the lead and less loading amount of powder cake. The oxidant comprises 70 to 90 parts of potassium perchlorate, 2 to 8 parts of nitrate, 5 to 8 parts of sulfate, 0 to 8 parts of carbonate, 5 to 8 parts of a density regulator, and 0.1 to 0.3 parts of the surfactant (external application). The oxidant has the advantages that (1) the product has low moisture absorption rate and good looseness and flowability by surface modification; (2) the powder mixed with a reducer has good firing property, and the fireworks are superior to the high-potassium product in ignition rate, paper shredding rate and sound intensity level value; and (3) the produce has lower cost than the high-potassium product and more powder loading amount.

Description

Oxydant of potassium perchlorate type special for fireworks and preparation method thereof
Technical field
The invention belongs to chemical gunpowder preparation field, relate to a kind of production fireworks firecracker gun powder oxygenant and preparation method thereof.
Background technology
For many years, the Potcrate that adopt are made oxygenant more in firecrackers production, and Potcrate has easy decomposition and emits characteristics such as oxygen, price is low, performance is good, but because its decomposition temperature is low and emit heat during decomposition, so itself just has the characteristics of explosive.Particularly it and combustible agent, as sulphur, organism, mixing such as aluminium powder back decomposition temperature can reduce greatly, the impact of firecrackers medicament and the friction sensitivity of its making are all very high, all reach 100%, the explosion hazard that takes place of fireworks industry has 60% or more that to make oxygenant relevant with use Potcrate according to investigations.Country has issued Potcrate has been managed as industrial explosive material for this reason, forbids using in fireworks the ban of Potcrate, and standard has also been carried out corresponding modification.Seek safe oxygenant in the industry and become hot topic to replace Potcrate fully, first-selection is that potassium perchlorate replaces Potcrate fully.Potassium perchlorate oxygen level height, rate of moisture absorption is low, chemical stability good, heat decomposition temperature is higher than Potcrate, and its decomposition reaction is thermo-negative reaction, and safety performance is better than Potcrate greatly, but has compared several shortcomings with Potcrate as oxygenant:
1. its decomposition temperature is more than 600 ℃, and only 368 ℃ of Potcrate decomposition temperatures are so potassium perchlorate medicament difficult point fire requires to use igniting to dash the big dedicated pin of energy;
2. price is expensive, is higher than Potcrate 50~80%, the cost height;
3. its density is higher more than 50% than Potcrate, so the powder charge cake is few, and owing to the difficult point fire, often causes the rate of burning till to descend owing to putting out to draw, even does not reach national standard.Therefore seek on performance, on the cost and suitable on the result of use, and in security, be better than the safe oxygenant of Potcrate greatly with Potcrate, significant to the fireworks industry, also be to guarantee industrial security, the essential condition of sound development.In recent years, numerous industry scientific research personnel are attempting to have addressed this problem and done a large amount of tests and research, see " firecrackers safety oxygenant " (application number is 200410016899.2), " powder of firecracker prepared from potassium perchlorate " (application number 200510057003.2), " fireworks and crackers safety oxygenant " (application number 200410046749.6), " composite crystal oxidant " (application number 200310306901.0), " composite oxidant for fireworks and crackers and preparation method thereof " (application number 200610088280.1), " a kind of low property composite crystal powder additive that is used for fireworks " (ZL200410022985.4), " novel Sparkler oxidant " (ZL200410046707.2) waits patent documentation to put down in writing.Mostly adopted nitrate of baryta to make the secondary oxidizer of potassium perchlorate in these patents, cost decreases, but performance is poorer than pure high potassium product, and nitrate of baryta belongs to the heavy metal salt, and severe toxicity is arranged, and a large amount of uses can bring new environmental issue.What have also exists Detonating Characteristics not good, or because moisture absorption causes shelf characteric to change, or the cost height, the shortcoming of complicated process of preparation.
Summary of the invention
The object of the invention is to provide a kind of starting to exchange fire property good, and it is good to set off performance (burning till rate, paper breaking rate sound level and shelf characteric), and cost can be fireworks that industry accepts again with special-purpose oxygenant of potassium perchlorate and preparation method thereof.
The weight percent of various compositions is in the Oxydant of potassium perchlorate type special for fireworks:
Potassium perchlorate 70~90
Nitrate 2~8
Vitriol 5~8
Carbonate 0~8
Density adjuster 5~8
Tensio-active agent (adding) 0.1~0.3
Nitrate is one or both in nitrate of baryta, the saltpetre in the mentioned component; Vitriol is one or both or three kinds in zinc sulfate, ferric sulfate, the calcium sulfate; Carbonate is the light calcium carbonate powder of fineness more than 325 orders; Density adjuster is a white carbon black, one or both in swelling perlite powder, the hollow plastics microballon or three kinds; Tensio-active agent is that carbon is 12~18 solid-state aliphatic amide or in the lipid acid one or both in the carbochain.
The preparation method of the special-purpose oxygenant of potassium perchlorate type is: as required, the above composition (is removed tensio-active agent, because tensio-active agent is for adding) weight percent is by absolutely configuring, after first then tensio-active agent potassium perchlorate is first and that add is mixed and modified, mix with other compositions again, obtain the special-purpose oxygenant product of potassium perchlorate type.
The present invention compared with prior art remarkable advantage is:
1. safety performance is better than former Potcrate product greatly, even also is better than pure potassium perchlorate product.
2. because potassium perchlorate has been carried out the processing of modification homogenizing, the product free-running property is good, be convenient to mix medicine, and heat-resistant quality is good, and shelf characteric is good.
Though 3. reduced high potassium application rate,, more, perchloric acid can have been played one's part to the full because vitriol and carbonate have played the effect of catalysis and dispersion agent to potassium perchlorate because added nitrate provides additional oxygen than pure high potassium product.
4. the medicament that is made into of the product performance of starting to exchange fire is good, can light reliably with qualified common lead-in wire, does not need the expensive dedicated pin of price.
5. because the consumption of nitrate is few, below 8%, so do not have saltpetre and a nitrate of baryta make the problem of medicament inefficacy with the solid flashing composition reaction, do not exist yet the salt made from earth containing a comparatively high percentage of sodium chloride medicament moisture absorption and storage period problem such as degradation.
6. the preparation method is simple.
After this product development success, receive praises from customers.
Embodiment
Embodiment 1
Prescription: potassium perchlorate 75
Nitrate of baryta 6
Zinc sulfate 7
Light calcium carbonate 4
Swelling perlite powder 6
White carbon black 2
Synthetic fatty acid 0.2
After potassium perchlorate and synthetic fatty acid are mixed and modified, mix with other composition again and promptly obtain the Oxydant of potassium perchlorate type special for fireworks product.
Embodiment 2
Prescription: potassium perchlorate 82
Saltpetre 3
Calcium sulfate 6
Light calcium carbonate 2
Swelling perlite powder+white carbon black 7
Palmiticacid+stearic acid 0.2
After with Palmiticacid+stearic acid potassium perchlorate being carried out modification and handles, again with other composition mix the Oxydant of potassium perchlorate type special for fireworks product.

Claims (3)

1. Oxydant of potassium perchlorate type special for fireworks, it is characterized in that: the weight percent of various compositions is in this special use oxygenant:
Potassium perchlorate 70~90
In nitrate of baryta, the saltpetre one or both 2~8
In zinc sulfate, ferric sulfate, the calcium sulfate one or both or three kind 5~8
The light calcium carbonate powder 0~8 of fineness more than 325 orders
In white carbon black, swelling perlite powder, the hollow plastics microballon one or both or three kind 5~8
Tensio-active agent 0.1~0.3 adds.
2. the special-purpose oxygenant of potassium perchlorate type according to claim 1 is characterized in that: tensio-active agent is that carbon is 12~18 solid-state aliphatic amide or in the lipid acid one or both in the carbochain.
3. a method for preparing the special-purpose oxygenant of the described potassium perchlorate type of claim 1 is characterized in that: after potassium perchlorate elder generation and the tensio-active agent that adds are mixed and modified, mix with other compositions again, obtain the special-purpose oxygenant product of potassium perchlorate type.
CN2008100320625A 2008-08-13 2008-08-13 Oxydant of potassium perchlorate type special for fireworks and method for preparing same Expired - Fee Related CN101337855B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN2008100320625A CN101337855B (en) 2008-08-13 2008-08-13 Oxydant of potassium perchlorate type special for fireworks and method for preparing same

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CN101337855A CN101337855A (en) 2009-01-07
CN101337855B true CN101337855B (en) 2011-06-22

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101613245B (en) * 2009-07-22 2012-05-23 湖南南岭民用爆破器材股份有限公司 Safe oxidant for firecrackers
CN101857407A (en) * 2010-05-29 2010-10-13 吴家福 Novel firecracker sealing agent
CN106495971A (en) * 2016-10-13 2017-03-15 湖南荣晖实业有限公司 Luxuriant medicine is opened without sulfur
CN110330399A (en) * 2019-07-23 2019-10-15 湖南荣晖新材料有限公司 A kind of fireworks and firecrackers composite material and preparation method and application
CN113372181A (en) * 2021-06-29 2021-09-10 湖南庆泰烟花制造有限公司 Oxidant for fireworks and firecrackers lead and preparation method thereof
CN115304436A (en) * 2022-08-03 2022-11-08 西藏浏河化工发展有限公司 A kind of modified potassium perchlorate production process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669999A (en) * 2004-03-17 2005-09-21 张龙替 Low performance composite crystal powder additive for fireworks and firecrackers
CN1686971A (en) * 2005-04-06 2005-10-26 刘成忠 Powder of firecracker prepared from potassium perchlorate
CN1743297A (en) * 2004-08-30 2006-03-08 龙文革 Fireworks and firecrackers oxidant
CN1746141A (en) * 2004-09-10 2006-03-15 马英天 Safety oxidizer for firecrackers
CN101100410A (en) * 2006-07-07 2008-01-09 南京理工大学 Composite oxidant for fireworks and firecrackers and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669999A (en) * 2004-03-17 2005-09-21 张龙替 Low performance composite crystal powder additive for fireworks and firecrackers
CN1743297A (en) * 2004-08-30 2006-03-08 龙文革 Fireworks and firecrackers oxidant
CN1746141A (en) * 2004-09-10 2006-03-15 马英天 Safety oxidizer for firecrackers
CN1686971A (en) * 2005-04-06 2005-10-26 刘成忠 Powder of firecracker prepared from potassium perchlorate
CN101100410A (en) * 2006-07-07 2008-01-09 南京理工大学 Composite oxidant for fireworks and firecrackers and preparation method thereof

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Address after: Postcode of Taizi Temple Industrial Park, Hunan County, Hanshou Province, China: 415900

Applicant after: Huzhou KENON Science & Technology Co., Ltd.

Address before: Hunan province Changsha Lushan Road No. 966 post encoding: 410012

Applicant before: Hunan Kenon Science and Technology Co., Ltd.

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Granted publication date: 20110622

Termination date: 20200813