CN1300070C - Method for preparing burster of double salt of spherical alkali type lead picrate and azide lead - Google Patents
Method for preparing burster of double salt of spherical alkali type lead picrate and azide lead Download PDFInfo
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- CN1300070C CN1300070C CNB2004100415294A CN200410041529A CN1300070C CN 1300070 C CN1300070 C CN 1300070C CN B2004100415294 A CNB2004100415294 A CN B2004100415294A CN 200410041529 A CN200410041529 A CN 200410041529A CN 1300070 C CN1300070 C CN 1300070C
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Abstract
本发明涉及一种球状碱式苦味酸铅与叠氮化铅复盐起爆药的制备方法。将混合晶形控制剂、叠氮化钠、苦味酸钠碱性溶液混合构成混合液；将糊精溶液置于硝酸铅溶液中构成化合底液；先将少量的混合液作为提前液加于化合底液中，然后在65℃～80℃下于30min～60min内往底液中均匀加入混合液，调节pH值，母液虹吸处理，然后水洗，出料，即得无粉尘，球状K·D复盐起爆药。本发明制备的球状K·D复盐起爆药起爆能力大、耐压性好，火焰感度高、热安定性好、不污染环境、产品质量稳定可靠、生产使用安全，消除了药剂粉尘，降低了的机械感度，提高了药剂的本质安全性，流散性好，便于定容计量装药，可以消除雷管装配中的压合爆炸。
The invention relates to a method for preparing spherical basic lead picrate and lead azide double salt primer. Mix the mixed crystal form control agent, sodium azide, and sodium picrate alkaline solution to form a mixed solution; put the dextrin solution in the lead nitrate solution to form a combined base solution; first add a small amount of mixed solution as an advance solution to the combined base Then add the mixed solution evenly into the bottom solution at 65℃～80℃ within 30min～60min, adjust the pH value, siphon the mother liquor, then wash it with water, and discharge the material to obtain a dust-free, spherical K·D double salt Primer. The spherical K·D double salt primer prepared by the invention has high detonation ability, good pressure resistance, high flame sensitivity, good thermal stability, no environmental pollution, stable and reliable product quality, safe production and use, eliminates chemical dust, and reduces Excellent mechanical sensitivity, which improves the intrinsic safety of the agent, has good fluidity, is convenient for constant volume metering and charging, and can eliminate the pressing explosion in the assembly of the detonator.
Description
One technical field
The present invention relates to the preparation method of a kind of industrial detonator, the preparation method of particularly a kind of spherical basic lead picrate and lead azoimide double salt primary explosive with basic lead picrate and lead azoimide double salt primary explosive.
Two background technologies
Detonator has multiple with priming explosive, as dextrin lead azide, DDNP, DS co-precipitation, GTG, KD double salt primary explosive or the like, wherein to detonate be the abbreviation of basic lead picrate and lead azoimide double salt primary explosive to KD double salt, it is that the eighties in last century is by the novel priming explosive of Nanjing Science ﹠ Engineering Univ Liu from a kind of excellent property of a small brass gong, Jiang Rongguang invention, once obtained 1988 annual national invention third prizes, this priming explosive has excellent property, stable; Produce safe in utilization; Wastewater flow rate is few, composition is simple, processing easily; Starting material are easily high, low cost and other advantages.Since this priming explosive came out, successively 10 tame factories applied at home, and all kinds of KD industrial detonators of accumulative total production and sales reach about 3,000,000,000, and steady quality is reliable, and economic results in society are remarkable.But because there is defective in existing KD double salt primary explosive preparation method: crystallization is wayward, often the forked crystallization of irregular rod occurs, and the product mechanical sensitivity is higher; The medicament dust is more, causes in actual production, and detonator pressing working procedure " pressing blast " frequency is higher, is unfavorable for capsular assembling safety, thereby brings difficulty for applying of KD double salt primary explosive.For reducing the mechanical sensitivity of priming explosive, U.S. Pat 3238076 has proposed a kind of method that adopts alkylated aromatic sulfonic acid salt, dextrin to prepare spherical four oxygen alkene or dextrin lead azide as tensio-active agent, this method be by adopt dextrin or alkylated aromatic sulfonic acid salt do tensio-active agent add priming explosive synthetic in, production technique is changed, thereby the priming explosive crystallization change over spherical outwardly.And domestic no spherical priming explosive crystallization.
Three summary of the invention
The object of the present invention is to provide a kind of mechanical sensitivity that can reduce product effectively, eliminate the spherical basic lead picrate of " pressing blast " in the detonator assembling and the preparation method of lead azoimide double salt primary explosive.
The technical solution that realizes the object of the invention is: the preparation method of a kind of basic lead picrate and lead azoimide double salt primary explosive, and its technical process and reaction conditions carry out in the following manner: will mix the formation mixed solution with crystal control agent, sodiumazide, the sodium picrate basic solution that alkylbenzene sulfonate, tartrate, carboxymethylcellulose sodium solution mix; Place lead nitrate solution to constitute liquid at the bottom of the chemical combination dextrin solution; Earlier a spot of mixed solution is added at the bottom of the chemical combination in the liquid as shifting to an earlier date liquid, under 65 ℃～80 ℃, in 30～60 minutes, in end liquid, evenly add mixed solution then, regulating the pH value is 4.0～5.0, the mother liquor siphon is handled, in combination apparatus, wash then, discharging, promptly getting does not have dust, spherical KD double salt primary explosive.
The preparation method of basic lead picrate of the present invention and lead azoimide double salt primary explosive can dextrin in aqueous solution be a liquid at the bottom of the chemical combination, and lead nitrate and mixed solution are added drop-wise in the combination apparatus simultaneously.
Among the preparation method of basic lead picrate of the present invention and lead azoimide double salt primary explosive, washing is carried out in combination apparatus, or carries out in suction filtration, and siphon top mother liquor or washing lotion are to eliminate crystallization in small, broken bits.
Among the preparation method of basic lead picrate of the present invention and lead azoimide double salt primary explosive, earlier 5% mixed solution is added at the bottom of the chemical combination in the liquid as shifting to an earlier date liquid.
The spherical KD double salt primary explosive of the present invention preparation has kept that former KD double salt primary explosive detonating capability is big, resistance to pressure good, major advantage such as flame sensitivity height, heat-resistant quality are good, free from environmental pollution, stable and reliable product quality, production are safe in utilization, and eliminated the medicament dust, reduced the mechanical sensitivity of product, improved the intrinsic safety of medicament, free-running property is good, is convenient to the constant volume measurement powder charge, can overcome " pressing blast " drawback in the detonator assembling.
Four description of drawings
Accompanying drawing is the preparation method's of spherical basic lead picrate of the present invention and lead azoimide double salt primary explosive a process flow diagram.
Five embodiments
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1: in conjunction with the accompanying drawings, add earlier the lead nitrate of 29L～33L 18% in combination apparatus, add 45L pure water and 5L 5% dextrin solution again, as end liquid, control pH is 4.0～5.0 with this; Will be by 1.08kg picric acid, pure water, 4.1L10% sodium nitride, 500mL 0.5% Xylo-Mucine, the 48L sodium picrate basic solution (adding NaOH solution) that 50g sodium tartrate and 125g Sodium dodecylbenzene sulfonate are made into is formed mixed solution with 11.5L～13.5L 10% sodium azide solution; Under agitation, in combination apparatus, add the 2.6L mixed solution in 60 ℃～80 ℃ as shifting to an earlier date liquid, at the uniform velocity splash into mixed solution behind the 5min again, the reinforced time is 30min～60min, and reinforced finishing continues reaction 5min, reduces to then about 50 ℃, top mother liquor siphon is handled, and in combination apparatus, add pure water, washing secondary, discharging.The product apparent density can reach 2.1g/cm
3
Embodiment 2: add pure water 440mL and 5% dextrin solution 20mL～60mL earlier in combination apparatus, as end liquid, regulating end liquid pH is 4.5～5.0 with this; Be dropping liquid with 18% lead nitrate solution 115mL and mixed solution (composition and blending ratio are with example 1) 230mL again; Before reinforced, elder generation is interior in mixed solution toward combination apparatus: the ratio of lead nitrate solution=4: 2 (mL/min) adds liquid in advance, stops to expect 5min behind the 3min, at the uniform velocity adds in above-mentioned flow velocity ratio again, reacts the Decanter that finishes and separates out material, and all the other are with embodiment 1.
Claims (4)
1, the preparation method of a kind of basic lead picrate and lead azoimide double salt primary explosive is characterized in that technical process and reaction conditions carry out in the following manner: will mix the formation mixed solution with crystal control agent, sodiumazide, the sodium picrate basic solution that alkylbenzene sulfonate, tartrate, carboxymethylcellulose sodium solution mix; Place lead nitrate solution to constitute liquid at the bottom of the chemical combination dextrin solution; Earlier a spot of mixed solution is added at the bottom of the chemical combination in the liquid as shifting to an earlier date liquid, under 65 ℃～80 ℃, in 30～60 minutes, in end liquid, evenly add mixed solution then, regulating the pH value is 4.0～5.0, the mother liquor siphon is handled, in combination apparatus, wash then, discharging, promptly getting does not have dust, spherical KD double salt primary explosive.
2, the preparation method of basic lead picrate according to claim 1 and 2 and lead azoimide double salt primary explosive is characterized in that: washing is carried out in combination apparatus, or carries out in suction filtration, and siphon top mother liquor or washing lotion are to eliminate crystallization in small, broken bits.
3, the preparation method of basic lead picrate according to claim 1 and 2 and lead azoimide double salt primary explosive is characterized in that: be liquid at the bottom of the chemical combination with the dextrin in aqueous solution, lead nitrate and mixed solution are added drop-wise in the combination apparatus simultaneously.
4, the preparation method of basic lead picrate according to claim 1 and 2 and lead azoimide double salt primary explosive is characterized in that: earlier 5% mixed solution is added at the bottom of the chemical combination in the liquid as shifting to an earlier date liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100415294A CN1300070C (en) | 2004-07-29 | 2004-07-29 | Method for preparing burster of double salt of spherical alkali type lead picrate and azide lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100415294A CN1300070C (en) | 2004-07-29 | 2004-07-29 | Method for preparing burster of double salt of spherical alkali type lead picrate and azide lead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727315A CN1727315A (en) | 2006-02-01 |
| CN1300070C true CN1300070C (en) | 2007-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100415294A Expired - Fee Related CN1300070C (en) | 2004-07-29 | 2004-07-29 | Method for preparing burster of double salt of spherical alkali type lead picrate and azide lead |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030598B (en) * | 2010-11-04 | 2012-09-12 | 云南燃一有限责任公司 | DPLG (dinitro-diazophenol) burster and preparation method thereof |
| CN103524277B (en) * | 2013-09-10 | 2016-08-10 | 安徽理工大学 | A kind of electric ignition charge used for detonator |
| CN114560747A (en) * | 2022-03-25 | 2022-05-31 | 南京理工大学 | A fuze small shaped energy output detonator using a single charge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238076A (en) * | 1963-01-07 | 1966-03-01 | Taylor George William Charles | Process for primary explosives containing boron having reduced electrostatic sensitivity |
| CN1038270A (en) * | 1989-02-21 | 1989-12-27 | 湖南省冶金规划设计院 | Priming explosive DDNP new process of production and sewage disposal thereof |
| CN1063276A (en) * | 1991-01-16 | 1992-08-05 | 国营云南燃料一厂 | A kind of pyrotechnic composition and preparation method thereof |
| CN1021366C (en) * | 1988-12-12 | 1993-06-23 | 东神技术株式会社 | Liquid Heating or Cooling Circulators |
| CN1078965A (en) * | 1993-07-16 | 1993-12-01 | 江西钢丝厂 | A kind of method that in shell, prepares priming explosive |
-
2004
- 2004-07-29 CN CNB2004100415294A patent/CN1300070C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238076A (en) * | 1963-01-07 | 1966-03-01 | Taylor George William Charles | Process for primary explosives containing boron having reduced electrostatic sensitivity |
| CN1021366C (en) * | 1988-12-12 | 1993-06-23 | 东神技术株式会社 | Liquid Heating or Cooling Circulators |
| CN1038270A (en) * | 1989-02-21 | 1989-12-27 | 湖南省冶金规划设计院 | Priming explosive DDNP new process of production and sewage disposal thereof |
| CN1063276A (en) * | 1991-01-16 | 1992-08-05 | 国营云南燃料一厂 | A kind of pyrotechnic composition and preparation method thereof |
| CN1078965A (en) * | 1993-07-16 | 1993-12-01 | 江西钢丝厂 | A kind of method that in shell, prepares priming explosive |
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| CN1727315A (en) | 2006-02-01 |
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