EP1925605A1 - Explosive - Google Patents

Explosive Download PDF

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Publication number
EP1925605A1
EP1925605A1 EP07466023A EP07466023A EP1925605A1 EP 1925605 A1 EP1925605 A1 EP 1925605A1 EP 07466023 A EP07466023 A EP 07466023A EP 07466023 A EP07466023 A EP 07466023A EP 1925605 A1 EP1925605 A1 EP 1925605A1
Authority
EP
European Patent Office
Prior art keywords
explosive
delaborated
smokeless
emulsion matrix
smokeless powder
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07466023A
Other languages
German (de)
French (fr)
Inventor
Martin Drda
Michal Zapletal
Jan Rez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STV group AS
Original Assignee
STV group AS
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 STV group AS filed Critical STV group AS
Publication of EP1925605A1 publication Critical patent/EP1925605A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
    • C06B47/14—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
    • C06B47/145—Water in oil emulsion type explosives in which a carbonaceous fuel forms the continuous phase
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase

Definitions

  • delaborated smokeless powders at rock shooting and blasting is meaningful utilization of these materials in fact, but it brings one principal disadvantage, inhering in danger of transition of delaborated smokeless powders detonation into burning, by which strong losses of energy necessary for rock shooting and blasting happen.
  • Delaborated smokeless powders are used for production of powdery ammonium nitrate explosive, whose disadvantage however is that they are not water resistant and therefore cannot be used in irrigated blastholes. This fact then limits the quantity of delaborated smokeless powders that is possible in such manner to use.
  • explosive whose principle is that it is constituted by mixture of delaborated smokeless powder with emulsion matrix, whereas content of delaborated smokeless powder in explosive mass is 20 to 80% w/w.
  • emulsion matrix in mixture with delaborated smokeless powder ensures necessary workability of explosive and ensures also necessary water-resistance of explosive, that all including securing of detonation reliability.
  • Smokeless powder then contributes to augmentation of explosive sensitivity and to augmentation of explosive energetic potential.
  • emulsion matrix put porous granulated ammonium nitrate, coleseed oil - methylester and expanded polystyrene.
  • Explosive is constituted by mixture of delaborated smokeless powder with emulsion matrix and eventually also other additives.
  • Emulsion matrix is withal inexplosive highly viscous substance consisting of ammonium nitrate and sodium nitrate water solution, mineral oil and emulsifier, that is sensitized by particles of delaborated powder, eventually also by glass microbeads or gas bubbles.
  • Explosive contains 50%w/w of emulsion matrix and 50%w/w of nitroglycerin delaborated smokeless powder.
  • Explosive contains 20%w/w of emulsion matrix and 80%w/w of nitrocellulose delaborated smokeless powder.
  • Explosive contains 80%w/w of emulsion matrix and 20%w/w of three component nitroguanidin delaborated smokeless powder.
  • Explosive contains 30%w/w of emulsion matrix, 40%w/w of delaborated smokeless nitroglycerin powder, 28%w/w of porous granulated ammonium nitrate, 1,5%w/w of coleseed oil-methylester and 0,5%w/w of expanded polystyrene.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Explosive is constituted by mixture of delaborated smokeless powder with emulsion matrix, whereas content of delaborated smokeless powder in explosive mass is 20 to 80%w/w.

Description

    Technical Background art
  • In last ten years there is in Czech republic as well as in other European countries the extensive armies reduction in progress, linked with liquidation of large volumes of excessive ammunition. Liquidation generally proceeds in the form of delaboration with subsequent utilization of at least some ammunition components and /or liquidation of individual ammunition components. One of the most important delaborated ammunition components are delaborated smokeless powders. These materials are liquidated either by burning or are utilized as raw material for new smokeless powders production or are utilized at rock shooting and blasting in quarries directly as industrial explosives.
    The utilization of delaborated smokeless powders at rock shooting and blasting is meaningful utilization of these materials in fact, but it brings one principal disadvantage, inhering in danger of transition of delaborated smokeless powders detonation into burning, by which strong losses of energy necessary for rock shooting and blasting happen. Delaborated smokeless powders are used for production of powdery ammonium nitrate explosive, whose disadvantage however is that they are not water resistant and therefore cannot be used in irrigated blastholes. This fact then limits the quantity of delaborated smokeless powders that is possible in such manner to use.
  • The aim of technical solution is to remove or at least to minimize the drawbacks of the background art
    • Principle of the invention
  • The aim of the technical solution is reached by explosive, whose principle is that it is constituted by mixture of delaborated smokeless powder with emulsion matrix, whereas content of delaborated smokeless powder in explosive mass is 20 to 80% w/w.
  • The advantage of this explosive is that emulsion matrix in mixture with delaborated smokeless powder ensures necessary workability of explosive and ensures also necessary water-resistance of explosive, that all including securing of detonation reliability. Smokeless powder then contributes to augmentation of explosive sensitivity and to augmentation of explosive energetic potential.
  • In advantageous embodiment there is in emulsion matrix put porous granulated ammonium nitrate, coleseed oil - methylester and expanded polystyrene.
    • Examples of embodiment
  • Explosive is constituted by mixture of delaborated smokeless powder with emulsion matrix and eventually also other additives. Emulsion matrix is withal inexplosive highly viscous substance consisting of ammonium nitrate and sodium nitrate water solution, mineral oil and emulsifier, that is sensitized by particles of delaborated powder, eventually also by glass microbeads or gas bubbles.
    • Example No.1:
  • Explosive contains 50%w/w of emulsion matrix and 50%w/w of nitroglycerin delaborated smokeless powder.
    • Example NO.2
  • Explosive contains 20%w/w of emulsion matrix and 80%w/w of nitrocellulose delaborated smokeless powder.
    • Example No 3:
  • Explosive contains 80%w/w of emulsion matrix and 20%w/w of three component nitroguanidin delaborated smokeless powder.
    • Example No 4:
  • Explosive contains 30%w/w of emulsion matrix, 40%w/w of delaborated smokeless nitroglycerin powder, 28%w/w of porous granulated ammonium nitrate, 1,5%w/w of coleseed oil-methylester and 0,5%w/w of expanded polystyrene.

Claims (2)

  1. Explosive characterized by that it is constituted by mixture of delaborated smokeless powder with emulsion matrix, whereas content of delaborated smokeless powder in explosive mass is 20 to 80%w/w.
  2. Explosive according to claim 1 characterized by that in emulsion matrix is put porous granulated ammonium nitrate, coleseed oil - methylester and expanded polystyrene.
EP07466023A 2006-11-23 2007-11-21 Explosive Withdrawn EP1925605A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ200618297U CZ17222U1 (en) 2006-11-23 2006-11-23 Explosive

Publications (1)

Publication Number Publication Date
EP1925605A1 true EP1925605A1 (en) 2008-05-28

Family

ID=37744247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07466023A Withdrawn EP1925605A1 (en) 2006-11-23 2007-11-21 Explosive

Country Status (2)

Country Link
EP (1) EP1925605A1 (en)
CZ (1) CZ17222U1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770522A (en) * 1970-08-18 1973-11-06 Du Pont Emulsion type explosive composition containing ammonium stearate or alkali metal stearate
US4523967A (en) * 1984-08-06 1985-06-18 Hercules Incorporated Invert emulsion explosives containing a one-component oil phase
US4555276A (en) * 1984-10-29 1985-11-26 Hercules Incorporated High density pressure resistant invert blasting emulsions
CN1034264A (en) * 1987-05-22 1989-07-26 淮南矿业学院 Low density grainy emulsified explosive
AU598162B2 (en) * 1987-11-18 1990-06-14 Dyno Nobel Asia Pacific Limited Binding additive for explosive compositions
WO1999021809A1 (en) * 1997-10-28 1999-05-06 Orica Explosives Technology Pty Ltd Emulsion explosive composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770522A (en) * 1970-08-18 1973-11-06 Du Pont Emulsion type explosive composition containing ammonium stearate or alkali metal stearate
US4523967A (en) * 1984-08-06 1985-06-18 Hercules Incorporated Invert emulsion explosives containing a one-component oil phase
US4555276A (en) * 1984-10-29 1985-11-26 Hercules Incorporated High density pressure resistant invert blasting emulsions
CN1034264A (en) * 1987-05-22 1989-07-26 淮南矿业学院 Low density grainy emulsified explosive
AU598162B2 (en) * 1987-11-18 1990-06-14 Dyno Nobel Asia Pacific Limited Binding additive for explosive compositions
WO1999021809A1 (en) * 1997-10-28 1999-05-06 Orica Explosives Technology Pty Ltd Emulsion explosive composition

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
CENTRAL EUROPEAN JOURNAL OF ENERGETIC MATERIALS , 2(1), 69-78 CODEN: CEJEA7; ISSN: 1733-7178, 2005 *
CHEMICAL ABSTRACTS, vol. 113, no. 4, 23 July 1990, Columbus, Ohio, US; abstract no. 26452a, J. ZANGH ET AL.: "Low-density grainy emulsified explosive" page 143; XP000154400 *
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; CHEN, HOUHE ET AL: "A composite industrial explosive based on waste propellant and emulsion explosive", XP002469015, retrieved from STN Database accession no. 141:56647 *
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; LIPINSKA, KATARZYNA ET AL: "Demilitarized double base propellants as ingredients of commercial explosives", XP002469016, retrieved from STN Database accession no. 144:314453 *
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; MACHACEK, OLDRICH ET AL: "Waste propellants and smokeless powders as ingredients in commercial explosives", XP002469017, retrieved from STN Database accession no. 118:237088 *
HUOZHAYAO XUEBAO , 26(3), 76-77 CODEN: HUXUFP; ISSN: 1007-7812, 2003 *
INTERNATIONAL ANNUAL CONFERENCE OF ICT , 23RD(WASTE MANAGE. ENERG. MATER. POLYM.), 11/1-11/14 CODEN: IACIEQ; ISSN: 0722-4087, 1992 *

Also Published As

Publication number Publication date
CZ17222U1 (en) 2007-02-05

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