CN1312084C - Low performance composite crystal powder additive for fireworks and firecrackers - Google Patents
Low performance composite crystal powder additive for fireworks and firecrackers Download PDFInfo
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- CN1312084C CN1312084C CNB2004100229854A CN200410022985A CN1312084C CN 1312084 C CN1312084 C CN 1312084C CN B2004100229854 A CNB2004100229854 A CN B2004100229854A CN 200410022985 A CN200410022985 A CN 200410022985A CN 1312084 C CN1312084 C CN 1312084C
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Abstract
The present invention relates to a low performance composite crystal powder additive for fireworks and firecrackers. The present invention has the raw materials of the weight proportion and a preparation method comprises: 20% to 60% of nitric acid with 70% to 98% of the concentration and 40% to 80% of barium carbonate are put in a reaction vessel A, and steam is led in the reaction vessel to react for 6 to 8 hours so that barium nitrate solution is generated; after filtration, 10%-40% of potassium nitrate is added to be heated and evaporated after reacting for 6 to 8 hours under steam; the product is cooled to room temperature to obtain crystals of a product A; 20% to 60% of nitric acid with 70% to 80% of the concentration and 40% to 80% of strontium carbonate are put in a reaction vessel B, and steam is led in the reaction vessel B to react for 6 to 8 hours so that strontium nitrate solution is generated; after filtered, the solution is heated, evaporated and cooled to room temperature so that crystals of a product B is obtained; the crystals of the product A and the crystals of the product B are evenly mixed, washed, centrifuged, dehumidificated and dried; then, 5% to 20% of potassium perchlorate and 3% to 10% of light calcium carbonate are added to be evenly mixed; the mixture is ground into powder with the grain size of 200 to 250 meshes. The present invention has the advantages of high safety, low moisture absorption and high purity. The present invention is made into the firecrackers with strong explosive force.
Description
Technical field
The present invention relates to be used for the gunpowder of fireworks.
Background technology
In the prior art, chloric acid salt gunpowder (as Potcrate) is a main raw material of producing match, fireworks, this is because the chlorate powder has characteristics such as oxidisability is strong, blast performance good, igniting is easy, the mixing firework medicament that particularly with Potcrate is oxygenant has good inflammableness, explosiveness and helps look, therefore is used widely in civilian pyrotechnics industry.But, because chlorate powder's mechanical sensitivity height, Potcrate can not grind altogether with organism, mixing with sulphur, phosphorus and organism or combustiblematerials and rubbing or when clashing into, very easily blast, security incident in use easily takes place, and this brings massive losses not only for national economy and people's lives and properties, returns the producer and brings heavy psychological pressure.
Summary of the invention
The technical problem to be solved in the present invention is, defective at the prior art existence, propose a kind of low property composite crystal powder additive that is used for fireworks, have firer's superior performance, security is good, rate of moisture absorption is low and cost is low characteristics, to overcome the deficiencies in the prior art.
Technical solution of the present invention is that the described low property composite crystal powder additive that is used for fireworks adopts following raw material and technology to make:
(1) A resultant preparation
A. getting concentration is 70%-98% nitric acid 20%-60% (weight part) and barium carbonate 40%-80% (weight part), drops into the A reactor and feeds 100 ℃ of steam, reacts 6-8 hour, generates nitrate of baryta solution;
B. after filtering, add the saltpetre of the 10%-40% that is equivalent to solution weight in solution, after reacting 6-8 hour under 100 ℃ of steam, heating evaporation naturally cools to room temperature, gets the crystallization of A resultant;
(2) B resultant crystalline preparation
A. getting concentration is 70%-98% nitric acid 20%-60% (weight part) and Strontium carbonate powder 40%-80% (weight part), drops into the B reactor and feeds 100 ℃ of steam, reacts 6-8 hour, generates strontium nitrate solution;
B. behind the filtering solution, heating evaporation naturally cools to room temperature, gets the crystallization of B resultant;
(3) with the crystallization of above-mentioned A resultant and B resultant crystallized mixed evenly after, washing, centrifugally dry, drying, mix after adding the light calcium carbonate of the potassium perchlorate be equivalent to this mixture weight 5%-20% and 3%-10% again, beat powder to the 200-250 order, promptly get described low property composite crystal powder additive.
Three-waste free pollution in the production of product of the present invention, product performance are stable, normal pressure production, thereby security is good in producing, and equipment is simple, power consumption is little, and cost is lower.
As known from the above, the present invention is a kind of low property composite crystal powder additive that is used for fireworks, and its characteristics have:
1, it is a chloracid potassium not, the product of not chloride hydrochlorate composition.
2, friction sensitivity 42%, wipes and hits sensitivity 6%, is better than national standard.
3, rate of moisture absorption is low, reaches or is lower than 0.65%, and good stability is done not moisture-sensitive of firecrackers.
4, it is better than salt made from earth containing a comparatively high percentage of sodium chloride to make firecrackers explosive power, and the paper breaking rate and the rate of sound be more than 95%, identical with height Potcrate and other medicine adapted ratio and effect.
5, purity height, effective component content reaches more than 99%, and moisture content, muriate, water-insoluble all are better than the Potcrate standard.
Product of the present invention must meet the following table technical indicator:
| Project | Index |
| BS(NO 3) 4％≥ | 68 |
| KN(NO 3) 2％≥ | 31 |
| Water content %≤ | 0.05 |
| Water insoluble matter content %≤ | 0.2 |
| Muriate (in Cl) content %≤ | 0.02 |
| Impact sensitivity %≤ | 15 |
| Friction sensitivity %≤ | 40 |
| Rate of moisture absorption % | 0.8 |
Examination and test of products method:
BS content is undertaken by the method for GB/T1613-93 regulation.
The method of KN content GB/T1918-1998 regulation is carried out.
Impact sensitivity is measured by the method for QB-/T1941.2-94 regulation and is undertaken.
Friction sensitivity is measured by the method for QB-/T1941.3-94 regulation and is undertaken.
Rate of moisture absorption is measured by the method for Q/T1941.5 94 regulations and is undertaken.
Moisture determination, oxide compound are measured, water insoluble substance determination is undertaken by the method for GB/T1613-93 regulation.
Examination and test of products rule: the method by the GB/T1613-93 regulation is carried out.
Product marking, packing, transportation, storage: the method by the GB/T1613-93 regulation is carried out.
Product safety requires: reach the GB/T1613-93 specified standards.
Embodiment
A kind of embodiment product of the present invention adopts following raw material and technology to make:
(1) it is 98% nitric acid 40% (weight part) and barium carbonate 60% that A resultant preparation: a. gets concentration, drops into A reflection still and also feeds 100 ℃ of steam, reacts generation nitrate of baryta solution 7 hours; B. filtering solution adds the saltpetre that is equivalent to this solution weight 10% in solution, and after reacting 6 hours under 100 ℃ of steam, heating evaporation naturally cools to room temperature, gets the crystallization of A resultant;
(2) to get concentration be 98% nitric acid 30% (weight part) and Strontium carbonate powder 70% (weight part) to the preparation of B resultant: a., drops into B reflection still, feeds 100 ℃ of steam, reacted the generation strontium nitrate solution 6 hours; B. filtering solution, heating evaporation naturally cools to room temperature, the crystallization of B resultant;
(3) crystallization of described A resultant and B resultant crystallized mixed is even, washing, centrifugally dry, drying, mix after adding the light calcium carbonate of the potassium perchlorate that is equivalent to this mixture weight 10% and 6% again, beat powder to 200 order, promptly.
Claims (1)
1, a kind of low property composite crystal powder additive that is used for fireworks is characterized in that it adopts following raw material and technology to make:
(1) A resultant preparation
A. getting concentration is 70%-98% nitric acid 20%-60% weight part and barium carbonate 40%-80% weight part, drops into the A reactor and feeds 100 ℃ of steam, reacts 6-8 hour, generates nitrate of baryta solution;
B. after filtering, add the saltpetre of the 10%-40% that is equivalent to solution weight in solution, after reacting 6-8 hour under 100 ℃ of steam, heating evaporation naturally cools to room temperature, gets the crystallization of A resultant;
(2) preparation of B resultant
A. getting concentration is 70%-98% nitric acid 20%-60% weight part and Strontium carbonate powder 40%-80% weight part, drops into the B reactor and feeds 100 ℃ of steam, reacts 6-8 hour, generates strontium nitrate solution;
B. behind the filtering solution, heating evaporation naturally cools to room temperature, gets the crystallization of B resultant;
(3) crystallization of above-mentioned A resultant and B resultant crystallized mixed is even, washing, centrifugally dry, drying,, mix after adding the light calcium carbonate of the potassium perchlorate be equivalent to this mixture weight 5%-20% and 3%-10% again, beat powder to 200-250 order and promptly get described composite crystal gunpowder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100229854A CN1312084C (en) | 2004-03-17 | 2004-03-17 | Low performance composite crystal powder additive for fireworks and firecrackers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100229854A CN1312084C (en) | 2004-03-17 | 2004-03-17 | Low performance composite crystal powder additive for fireworks and firecrackers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1669999A CN1669999A (en) | 2005-09-21 |
| CN1312084C true CN1312084C (en) | 2007-04-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100229854A Expired - Fee Related CN1312084C (en) | 2004-03-17 | 2004-03-17 | Low performance composite crystal powder additive for fireworks and firecrackers |
Country Status (1)
| Country | Link |
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| CN (1) | CN1312084C (en) |
Families Citing this family (1)
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052327A (en) * | 1989-12-02 | 1991-06-19 | 单国明 | Energy increasing and combustion intensifying agent for coal |
| CN1106238A (en) * | 1994-08-15 | 1995-08-09 | 中外合资南京圣晖实业有限公司 | Beverage with chrysanthemum nankingense as main material and production process thereof |
| WO1996032363A1 (en) * | 1995-04-14 | 1996-10-17 | Automotive Systems Laboratory, Inc. | Nonazide gas generating compositions with a built-in catalyst |
| CN1193101A (en) * | 1997-03-10 | 1998-09-16 | 湖南省醴陵东方出口花炮总厂 | Signal torch fireworks |
| CN1380726A (en) * | 2001-04-12 | 2002-11-20 | 索尼株式会社 | Semiconductor laser device |
-
2004
- 2004-03-17 CN CNB2004100229854A patent/CN1312084C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052327A (en) * | 1989-12-02 | 1991-06-19 | 单国明 | Energy increasing and combustion intensifying agent for coal |
| CN1106238A (en) * | 1994-08-15 | 1995-08-09 | 中外合资南京圣晖实业有限公司 | Beverage with chrysanthemum nankingense as main material and production process thereof |
| WO1996032363A1 (en) * | 1995-04-14 | 1996-10-17 | Automotive Systems Laboratory, Inc. | Nonazide gas generating compositions with a built-in catalyst |
| CN1193101A (en) * | 1997-03-10 | 1998-09-16 | 湖南省醴陵东方出口花炮总厂 | Signal torch fireworks |
| CN1380726A (en) * | 2001-04-12 | 2002-11-20 | 索尼株式会社 | Semiconductor laser device |
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| Publication number | Publication date |
|---|---|
| CN1669999A (en) | 2005-09-21 |
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Granted publication date: 20070425 Termination date: 20110317 |