NO20002558L - Process for the preparation of fine-dispersive explosives - Google Patents

Process for the preparation of fine-dispersive explosives

Info

Publication number
NO20002558L
NO20002558L NO20002558A NO20002558A NO20002558L NO 20002558 L NO20002558 L NO 20002558L NO 20002558 A NO20002558 A NO 20002558A NO 20002558 A NO20002558 A NO 20002558A NO 20002558 L NO20002558 L NO 20002558L
Authority
NO
Norway
Prior art keywords
solvent
explosive
fine
nozzles
explosives
Prior art date
Application number
NO20002558A
Other languages
Norwegian (no)
Other versions
NO20002558D0 (en
Inventor
Ulrich Teipel
Horst Krause
Karlfred Leisinger
Hartmut Kroeber
Werner Reinhard
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of NO20002558D0 publication Critical patent/NO20002558D0/en
Publication of NO20002558L publication Critical patent/NO20002558L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/008—Processes carried out under supercritical conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • 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
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00162—Controlling or regulating processes controlling the pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00186—Controlling or regulating processes controlling the composition of the reactive mixture

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Disintegrating Or Milling (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

En fremgangsmåte for fremstilling av findisperse eksplosiv- stoffer ved omkrystallisering av eksplosivstoffet i et løsningsmiddel og etterfølgende fjerning av løsningsmiddelet utmerker seg ved at eksplosivstoffet løses i minst ett overkritisk fluid og den overkritiske løsning ekspanderes trykkstetaktig under overføring av løsningsmiddelet i en underkritisk tilstand og under dannelse av fine eksplosivstoffpartikler. For den trykkstøtaktige ekspansjon av løsningen anvendes foretrukket dyser, særlig dyser med diametere som varierer langs deres lengde, som lavaldyser.- -¿- Med fremgangsmåten ifølge oppfinnelsen erholdes fine eksploaivstoffpartikler med definert midlere partikkel- størrelse, snever partikkelstørrelsesfordeling og følgelig høy bulkdensitet.A process for producing finely dispersed explosives by recrystallizing the explosive in a solvent and subsequent removal of the solvent is characterized in that the explosive is dissolved in at least one supercritical fluid and the supercritical solution is expanded pressure-tight while transferring the solvent in a subcritical state and fine explosive particles. For the pressurized expansion of the solution, preferred nozzles, in particular nozzles with diameters varying along their length, are used as low nozzles. The process of the invention provides fine explosive particles of defined average particle size, narrow particle size distribution and consequently high bulk density.

NO20002558A 1999-05-22 2000-05-18 Process for the preparation of fine-dispersive explosives NO20002558L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19923730A DE19923730A1 (en) 1999-05-22 1999-05-22 Process for the production of fine particulate explosives

Publications (2)

Publication Number Publication Date
NO20002558D0 NO20002558D0 (en) 2000-05-18
NO20002558L true NO20002558L (en) 2000-11-23

Family

ID=7909002

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002558A NO20002558L (en) 1999-05-22 2000-05-18 Process for the preparation of fine-dispersive explosives

Country Status (3)

Country Link
EP (1) EP1055652A1 (en)
DE (1) DE19923730A1 (en)
NO (1) NO20002558L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149814B4 (en) * 2001-10-09 2006-07-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the preparation of crystals of solids dissolved in solvents

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631251B1 (en) * 1988-05-13 1992-01-17 Sgn Soc Gen Tech Nouvelle METHOD AND DEVICE FOR THE FILTRATION OF CONTAMINATED GASES LOADED IN LIQUID VESICLES
JP3368117B2 (en) * 1995-09-29 2003-01-20 幸彦 唐澤 Method and apparatus for crushing solid particles
CN1233169A (en) * 1996-10-14 1999-10-27 弗·哈夫曼-拉罗切有限公司 A kind of preparation technology of powder preparation

Also Published As

Publication number Publication date
NO20002558D0 (en) 2000-05-18
EP1055652A1 (en) 2000-11-29
DE19923730A1 (en) 2000-11-23

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application