Classifications

• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
  • C06C7/00—Non-electric detonators; Blasting caps; Primers
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
  • C06B21/0008—Compounding the ingredient
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
  • C06B21/0033—Shaping the mixture
  • C06B21/0066—Shaping the mixture by granulation, e.g. flaking
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B41/00—Compositions containing a nitrated metallo-organic compound

Definitions

• This invention relates to the use of a microjet reactor for the production of initiating explosive.
• initiating primers or initiating explosives with very small and reproducible crystal dimensions (typical sizes of ⁇ 30 ⁇ m) are needed so that good thermal coupling can be effected between the electrical heating resistances and the crystals. In other applications of initiating explosives it is also desirable that many small crystals be in contact with the igniting resistance in question.
• very small crystals for example in the range of 0.5 to 30 ⁇ m, preferably 1 to 20 ⁇ m, particularly preferably 1 to 10 ⁇ m
• microjet reactor for the production of initiating explosive, each of the starting solutions for explosive production in the microjet reactor being injected through a nozzle onto a common collision point into a reactor space enclosed by a reactor housing, a gas being admitted into the reactor space via an opening, and the resulting initiating explosive crystals being removed from the reactor housing together with the liquid and excess gas through a further opening.
• a microjet reactor is described, for example, in WO 00/61275, reference being expressly made here to the entire content of the disclosure of this publication.
• the initiating explosive can be won in a narrow, well-defined and adjustable grain-size spectrum.
• the size of the explosive crystals generated in precipitation can be reproducibly controlled by varying the operating parameters.
• the diameters of the reactant-supplying nozzles, the pump pressure, the temperatures and concentrations of the starting solutions, and the quantity of auxiliary gas can be varied.
• the nozzle diameter is preferably 10 to 1000 ⁇ m, particularly preferably 50 to 500 ⁇ m, and most particularly preferably 50 to 100 ⁇ m.
• the total throughput is preferably 10 to 1000 mL/minute, particularly preferably 50 to 500 mL/minute.
• the following initiating explosives can preferably be produced through the use according to the invention: potassium dinitrobenzofuroxanate, lead azide, lead picrate, lead trinitroresorcinate and cesium dinitrobenzofuroxanate.
• a further advantage of the use according to the invention is that fractional (and hazardous) screening can be omitted because of the well-defined crystal size of the initiating explosive.
• a sodium dibenzofuroxanate solution with a temperature of 23° C. and a concentration of 20 g/L and a potassium nitrate solution with a temperature of 23° C. and a concentration of 30 g/L were brought together with a nozzle pressure of 100 bar at each nozzle. Air was used as transporting gas. After two minutes' reaction, approximately 1 L of reaction liquid containing approximately 5 g of finely divided potassium dinitrobenzofuroxanate was obtained.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Physical Or Chemical Processes And Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

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Cited By (1)

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Citations (3)

Family Cites Families (8)

• 2003
  • 2003-07-31 DE DE10334992A patent/DE10334992A1/de not_active Withdrawn
• 2004
  • 2004-07-28 EP EP04017847A patent/EP1505047A3/fr not_active Withdrawn
  • 2004-07-30 US US10/901,973 patent/US20050188874A1/en not_active Abandoned

Patent Citations (3)

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