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WO2020085986A1 - Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement - Google Patents

Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement Download PDF

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Publication number
WO2020085986A1
WO2020085986A1 PCT/SE2019/051050 SE2019051050W WO2020085986A1 WO 2020085986 A1 WO2020085986 A1 WO 2020085986A1 SE 2019051050 W SE2019051050 W SE 2019051050W WO 2020085986 A1 WO2020085986 A1 WO 2020085986A1
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WO
WIPO (PCT)
Prior art keywords
explosive composition
composition according
explosive
previous
solution
Prior art date
Application number
PCT/SE2019/051050
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English (en)
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WO2020085986A8 (fr
Inventor
Miguel ARAOS
Original Assignee
Ab Etken Teknologi
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
Priority claimed from AU2018904060A external-priority patent/AU2018904060A0/en
Application filed by Ab Etken Teknologi filed Critical Ab Etken Teknologi
Priority to EP19876911.9A priority Critical patent/EP3870557A4/fr
Priority to AU2019365614A priority patent/AU2019365614B2/en
Publication of WO2020085986A1 publication Critical patent/WO2020085986A1/fr
Publication of WO2020085986A8 publication Critical patent/WO2020085986A8/fr

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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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers

Definitions

  • the present invention relates to a mining explosive composition and its method of manufacture that
  • Sensitising materials which alter the density of the product, are incorporated before the production of the main product, to eliminate the task of adjusting density by the operator.
  • Sensitising material Compressible material (with a low density, such as glass microballoons - GMB, gas bubbles - GB or expanded polystyrene - EPS) which can create hot spots, with a temperature above 500-C, after being compressed by s shock wave in an explosive. These sensitising materials have an inherently low density.
  • HP-based gel A gel that contains HP (oxidiser), fuel(s) (combustible) and thickener(s)
  • HP-based explosive gel A gel that contains HP (oxidiser), fuel(s) (combustible), thickener(s) and sensitising material to create hot spots in the gel.
  • Nitrate leaching AN that leaches out from undetonated explosives into mine water.
  • AN-based emulsion or watergel compositions are made using ammonium nitrate (AN) (hereinafter AN-based emulsions / watergels). These compositions can then be mixed / blended with AN prills and fuel oil (also known as ANFO). The mixing of AN-based emulsion or watergel compositions with ANFO can be conducted in any ratio, preferable (but not limited) between 70/30 to 30/70 by weight.
  • sensitising materials like GMB, GB or EPS
  • these sensitising materials produce hot spots in explosive products to make them sensitive to the initiation by a booster. Then the product is loaded into a blasthole and can be used to break rock by blasting in mines.
  • AN absorbs water from the air, which causes a problem called "caking". Caking does not allow AN to flow, so the ANFO prepared makes difficult to reach the final target mixing ratio of AN-based emulsion or watergel compositions with ANFO. This situation worsens in tropical countries due to high humidity.
  • AN-based emulsion or watergels compositions blended with ANFO however still have some disadvantages, such as
  • Patent WO 2013013272 claims a product which is made of HP, fuel, thickeners and sensitising material which is able to work as an explosive and therefore eliminate the use of ammonium nitrate-based explosives. Furthermore, the above H P-based explosive does not produce NOx upon detonation. It does not use solid materials, like ANFO, for the manufacturing process. Overall the HP-based explosives are an improvement to common AN-based emulsion or watergel explosive compositions.
  • the mixing of the sensitising material is particularly difficult and therefore not homogeneously mixed throughout the HP-based explosive gel - this uneven mixed mixture could cause different velocity of detonation along the column of the HP-based explosive gel in a blasthole.
  • the addition of sensitising materials during the process is shown in figure 4.
  • HP-based explosive gels when sensitising material (which have a low density) are mixed into the gel to render it sensitive, the gel density drops from 1.20 g/ml to 1.10 g/ml (and lower). At this density the HP-based explosive gel sinks slowly into water if present in the blasthole. This low rate of sinking does not displace the water properly and may entrap pockets of water that may affect the detonation of the HP-based gel explosive.
  • HP is a good oxidiser but not very selective and therefore reacts with many of the rock types present in mines. These types of reaction cause a decomposition of the HP- based gel, which releases heat and it may cause an unwanted detonation of the blasthole where the gel is loaded.
  • This present relates to an explosive composition and its method of manufacture.
  • the preferred objectives of the present invention is to disclose • A manufacturing system that eliminates the use of suspended gum in alcohol and therefore no settling of components from the starting phases takes place before preparing the HP-based gel.
  • the present invention provides an explosive composition to overcome or ameliorates one or more of the disadvantages of the prior art of explosives used in mining activities, or at least to provide a useful alternative.
  • the present invention provides an explosive composition comprising an oxidiser solution containing HP, at least one water soluble fuel, at least one pH sensitive thickener, at least one sensitising material (to create hot spot) which is incorporated before the manufacture of the HP-based gel composition, optionally at least one HP stabiliser, optionally at least one surfactant to assist with the incorporation of solid sensitising material or produce homogeneous sized gas bubbles in the final gel, optionally at least one high-density material to increase the density of the product so it sinks easily in water when required.
  • the present invention provides a manufacture method for an explosive composition
  • an oxidiser solution containing HP at least one water soluble fuel, at least one pH sensitive thickener, at least one sensitising material (to create hot spot) which is incorporated before the manufacture of the HP-based gel composition
  • at least one HP stabiliser optionally at least one surfactant to assist with the incorporation of solid sensitising material or produce homogeneous sized gas bubbles in the final gel
  • optionally at least one high-density material to increase the density of the product so it sinks easily in water when required.
  • the present invention provides a method of use for an explosive composition
  • an oxidiser solution containing HP at least one water soluble fuel, at least one pH sensitive thickener, at least one sensitising material (to create hot spot) which is incorporated before the manufacture of the HP-based gel composition
  • at least one HP stabiliser optionally at least one surfactant to assist with the incorporation of solid sensitising material or produce homogeneous sized gas bubbles in the final gel
  • optionally at least one high-density material to increase the density of the product so it sinks easily in water when required.
  • the present invention relates to explosives for use for blast rocks in mines.
  • FIG. 1-3 schematically illustrates embodiments of the present disclosure.
  • Fig. 4 schematically illustrates addition of sensitising materials.
  • Fig. 5 schematically illustrates the basic manufacturing method of the present disclosure.
  • Fig. 6 is a plot illustrating the VOD trace for an example of the present disclosure.
  • drawings present the variants for the manufacturing methods. Drawings shows the equipment needed to manufacture the energetic composition.
  • the manufacturing equipment could be either fix, in a building or mobile (on an electrically or diesel-powered truck).
  • the manufacturing method needs at least 1 tank with a fluid with the second and third tank optionally empty or containing formulation additives, valves, optionally flowmeters, hoses, mixing reactors and pumps. Temperature, pressure and other type of sensors can also be added to tanks, pipes, mixing reactor to control the overall process.
  • Tank 1, 2 and 3 contain fluids 1, 2 and 3 respectively. Fluids 1, 2 and 3 can have a viscosity from 1 Pa*s to 50,000 Pa*s.
  • the transport of the fluid 1, 2 and 3 through pipes 4a, 4b and 4c to joint fitting 5 can be conducted with suitable pumps or by gravity.
  • Pipe 4a, 4b and 4c can be made of rigid or flexible material, compatible with fluids 1, 2 and 3.
  • the length of pipes 4a, 4b and 4c can be between 0.3 metre to 100 metres.
  • Joint fitting 5 is connected to reactor 7 by a flexible or rigid pipe 6.
  • Reactor 7 may or may not have moving parts.
  • a static mixer, which does not have moving part, is the preferred reaction.
  • the volumetric rate of the mixed fluid in reactor 7 could be between 1 - 1000 L/minutes.
  • a flexible or rigid pipe 8 is attached. Pipe 8 could have a length of 0.05 metres to 100 metres.
  • a device 8 to produce either a stream of fluid (which is shown in figure 1) or produce droplets (like a shower head, figure 2) is attached.
  • a schematic is shown in figure 3.
  • the fluid or droplets can be discharged directly into a borehole 10 (located in a mine, quarry, UG mines or tunnel construction) or a tray 10 to provide a sheet-like shape. Once discharged, the fluid shapes into an elastic solid material (hard gel) or only flowable gel.
  • the droplets can be discharged into either a borehole (located in a mine, quarry, UG mines or tunnel construction) or into a tank 11 on a truck. Then the spherical shaped energetic material becomes at least an elastic-solid material (hard gel). These spherical energetic products are then loaded into a borehole 9 (located in a mine, quarry, UG mines or tunnel construction).
  • the reactor 7 is placed on top a borehole 10 (located in a mine, quarry, UG mines or tunnel construction) and the fluids 1, 2 and 3 are pumped in the right ratios into the top part of the reactor.
  • the fluids mode downward due to gravity and at the same time the fluids are mixed.
  • the mixed fluids exit the reactor 6 at the bottom and start filling the borehole 9.
  • the fluid then becomes an elastic solid material (hard gel).
  • the elastic-solid elastic energetic material or gel placed in the borehole can be initiated by a booster and detonator as known in the art.
  • the elastic-solid elastic energetic material with a sheet-like shape can be initiated by a booster and detonator as known in the art.
  • This sheet can be used to break oversized rock on the surface of the mines or used to create shockwaves in engineering applications
  • the elastic-solid elastic energetic material with a spherical-like shape can be initiated by a booster and detonator as known in the art. This sheet can be used to blast rocks in mines.
  • Solution A is prepared with H P, a pH sensitive thickener, sensitising materials and pH adjustment of the solution below 4.0, so the solution thickens to a viscosity below 5,000 cP and keeps the sensitising material homogeneously distributed in the solution.
  • a solution B prepared with HP, water soluble fuels, and a pH modifier to adjust the pH of the solution above 5.0.
  • the mixing of the two solutions is conducted by the static mixer, and the solution that has a pH above 5.0 thickens the pH sensitive thickener present in the solution A.
  • the static mixer can be near the pumps of up to 100 metres (near the blastholes).
  • the final viscosity of the product, which is now an explosive (Solution A + Solution B have been mixed) is between 20 Pa*s to 100 Pa*s or even higher.
  • the sensitiser is included in one of the starting components of the HP-based explosive gel - in this case in solution A and due to the low viscosity of this solution, the sensitising material is homogeneously distributed and locked into position when the pH is adjusted.
  • the viscosity of the final HP explosive gel increases to 20 Pa*s - 100 Pa*s.
  • the sensitising material is not added once the HP-gel is formed as it is currently done by the current technology for mining explosive (see figure 1).
  • the solution where the solution where the sensitising material has been incorporated is still liquid or with a low viscosity, so it can be handled with pumps. No solid handling material equipment is required in this step.
  • the manufacturing system for the HP-based explosive gel can be placed on a platform which can be mobile or static. If mobile, the HP-explosive gel can be made next to the blasthole. If in a platform, the product can be made at a facility at the mine. Whichever option is selected, no energetic product is transported in public roads.
  • the present invention combines products that by itself are not explosives. However once mixed, the non-explosive components make an explosive suitable for mines.
  • the HP-based explosive gel consists of the following components:
  • Oxidiser component This component reacts with the fuel phase to release energy.
  • the oxidiser is hydrogen peroxide (see WO2013013272).
  • Fuel component Fuel is an essential component of explosives as they react with the oxidising agent and release energy. Fuels that can be used are either soluble or insoluble in HP solution. Soluble fuels are sugar, urea, alcohol (ethanol, propylene glycol, glycerine, for example see patent US 3,367,805), organic acids (citric, oxalic, tartaric, etc.).
  • Thickening agents are compounds able to hold the oxidiser, fuel and any other component (such as sensitising materials) together in the final gel product.
  • the final gel formed from these thickener agents can have a flowable gel or semi rigid / hard gel structure.
  • a pH sensitive thickener has been selected. These thickeners are pH dependent - they work in a pH range of 4 - 10.
  • pH-sensitive thickening agents are carbomers / carbopol like the one described in document "Rheology Modification of Hydrogen Peroxide-Based Applications Using Cross-Linked Polyacrylic Acid Polymers” (Julie Schmucker-Castner and Dilip Desai; Presented at the Society of Cosmetic Chemists Conference, December 1997, New York) or US patent 4,288,048, or carbomer manufactured under the Flogel trade mark (manufactured by SNF). They need a pH modifier to swell and produce the thickening effect.
  • These pH sensitive thickeners are based on polycrylica acids.
  • pH modifiers to thicken carbomers / polyacrylic acids are triethanolamine, sodium or potassium hydroxide, or sodium bicarbonate or any other alkaline chemical, trimethamine, aminoethyl propanol, tetrahydroxypropyl ethylene diamine (See US Patent 6,555,020).
  • the use of these pH sensitive thickeners is an improvement to the previous art (see patent WO Patent WO2013013272) because the pH sensitive thickener does not settle at the bottom if not stirred (like in the case of glycerine and gums).
  • This pH sensitive thickener also allows to maintain a solution with a low viscosity, just enough to lock in the sensitising material.
  • Sensitising materials These types of materials have low densities and can be compressed by the passing of a shock wave. When being compressed, the temperature inside of these materials increase above 500-C is a timeframe of less than 0.1 microseconds. This compression creates hot spots in the explosives composition which in turn decomposes it and creates a detonation shock. Depending on the amount of these sensitising material, the HP- based explosive gel can change its velocity of detonation (VOD).
  • VOD velocity of detonation
  • Sensitising materials enclose a gas. They can be gas bubbles (chemically generated, like in US patent in situ or injected into the gel, like for example US patent 6,537,399), plastic or glass microballoons (see for example US 3,294,601), expanded polystyrene (see patent 4,995,925). Other materials like rice, popcorn can be used to drop the density of the gel. Solid density modifiers (GMB, PMB, extendospheres, perlite) and chemical to produce gas bubbles are added mostly after the gel has been formed.
  • Stabilisers H P decomposes with time and also react with different compounds. Stabiliser are needed to delay or eliminate any secondary reaction between HP and other components of the final gel. Pat describe these a few of these stabilisers. Therefore, this invention differentiates from the previous art due to the fact that uses stabiliser to extend the shelf life of the HP-based product.
  • Surfactants These chemicals are used to control the size of the gas bubble type sensitising material (see for example EP0161821B1). They can also be used to wet some other hydrophobic sensitising voids like expanded polystyrene. Examples of these surfactants are sodium laureth sulphate, caprylyl/capryl glucoside, coco betaine, lauryl myristl amine oxide, sodium cocoyl isenthionate, cocoamide, etc. High density material. These materials are inert - do not interfere with the detonation process. They have been used to increase the density of the energetic composition, so they can easily sink into water. Patent US 4959108 claims the use of glass beads as high-density material.
  • the difference lies in the use of solid glass beads (with a size between 10 to 5000 mm), which can be metered and flow easily when incorporating them into one of the solutions used to prepare the HP gel, of after the gel has been manufactured.
  • Example of these glass beads are supplied by Burwell Australia and have a particle size below 45 microns.
  • Solution A contains HP, a pH sensitive thickener, a sensitising material (GMB, gas bubbles or EPS) and a pH modifier to adjust the pH of the solution.
  • Solution A is prepared by placingthe HP (between 35 - 70% w/w) in a mixing tank, continuously stirred.
  • the pH sensitive thickener is added until fully incorporated into the HP solution.
  • the sensitising material is added (GMB or EPS) or generated in situ by bubble producer instruments.
  • the pH of the Solution A is adjusted to 2.5 - 4.0. In this way the pH sensitive thickener present in Solution A thickens and locks into position the homogeneously distributed sensitising material (i.e.
  • the sensitising material does not migrate to the surface of the solution).
  • the density of Solution A drops due to the low density of the sensitising material.
  • This solution is not explosive. Also, high density materials like solid glass beads could be added to this solution if the final product is to be used in blastholes with water. This high density makes the density of the solution to increase.
  • the second solution contains HP, a water-soluble fuel, and a pH modifier.
  • Solution B is prepared by placing the HP (between 35 - 70% w/w) in a mixing tank, continuously stirred, then the water-soluble fuel is added, and pH adjusted to a value above 5.0. This solution is not explosive. Alternatives to this preparation consists of adding HP stabilisers to the solution.
  • Solution A and B are pumped separately through pipes (in a predetermined ratio, so the final oxygen balance of the final HP gel is between -10 to 10), until the solution merge in a pipe connected to the inlet of a static mixer. Then the static mixer mixes (eamples of these devices are disclosed in US Patent 4,948,440) both solutions, the system thickens due to the high pH of Solution B and the sensitising material is locked into position, homogeneously distributed.
  • the final viscosity of the HP explosive gel is above 20 Pa*s.
  • the final density of the HP explosive is between 0.5 - 1.40 g/ml.
  • Combination of 1 and 2 have two important features: a. Because water soluble fuels and density modifiers are not to be in the same tank, the products in each tank are not explosives.
  • the pH sensitive thickener is not in the same tank as the pH modifier, so they remain as low viscosity liquid until mixed
  • the manufacturing method needs valves, flowmeters and pumps. Temperature, pressure and other type of sensors can also be added to tanks, pipes, mixing reactor to control the overall process.
  • Solution A was a suspension of 12.6 grams of Carbomer 980 (Supplied by New Directions Australia Pty Ltd) in 814 grams of HP 50% w/w (from Solvay Australia). Carbomer 980 was added slowly to HP 50% w/w while stirring.
  • Solution B was prepared by dissolving 338.3 grams of white sugar in 837.8 grams of HP 50% w/w. The pH of this solution was adjusted with 3.5 grams of TEA (Supplied by New Directions Australia Pty Ltd). The final pH of Solution B was 6.0. Solution B was then added onto Solution A and a thick gel was formed. Then 55.7 grams of QCel 5020 (Supplied by Barnes Australia Pty Ltd) were mixed into the gel.
  • the final density of the gel was 1.07 g/ml.
  • the gel was loaded into a PVC pipe of 1 metre in length.
  • the sample was detonated using a 50-gram booster (from Beston Australia).
  • the explosive detonated with a velocity of detonation of 5202 m/s and it was measured using an instrument made by Shottrack Australia Pty Ltd.
  • the VOD trace for the charge is displayed in the plot shown in figure 6. This example demonstrated that the use of carbomer in the formulation is suitable as the product detonated.
  • Solution A was prepared by adding 0.50 grams of Ultrez 10 to 199.9 grams of HP 50% w/w. Solid glass beads with a size of 45 microns were added to Solution A. TEA was added to Solution A until thickening took place. Glass beads from Burwell Australia, with a density of were suspended and locked into place. This test demonstrated that glass beads, and for extension, GM B, gas bubbles, EPS, etc, can be homogeneously distributed into a thickened HP solution.
  • Solution A was prepared in a plastic tank by dissolving 64 grams of Carbomer in 3964 grams of HP 49.5% w/w (supplied by Swed Handling Sweden). Then 159 grams of K-15 GMB from 3M were added. This solution has a pH of 1.20. 0.9 grams of triethanolamine (TEA, supplied by Swed Handling Sweden) were added and the solution thickened to lock in place the homogeneously distributed GMB. The solution reached a pH of 3.6 - 3.8. The density of Solution A was 0.90 g/ml.
  • Solution B was prepared by dissolving in a plastic tank 1352 grams of sugar in 2643 grams of HP 49.5% w/w. Sugar was sourced from the local food store. Then 23 grams of TEA were added to increase the pH to around 6.0. The density of this solution was 1.31 g/ml. Tanks with the prepared solutions A and B were connected to two different magnetic gear pumps. Solutions A and B were joined by a "T" fitting before passing through the static mixer. Once Solution A and B were mixed, the final HP gel had a density of 1.04 g/ml. Five charges in plastic tubes of 51 mm were prepared and fired using a detonator surrounded by 8 short strings of detonating cord 3 g/m. All samples prepared by this method detonated.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Colloid Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une composition explosive, son procédé de fabrication et son utilisation, comprenant une solution d'oxydant, présentant au moins un carburant soluble dans l'eau ou au moins un carburant insoluble dans l'eau, au moins un épaississant sensible au pH, au moins un agent de modification du pH, au moins un matériau sensibilisateur pour créer des points chauds, éventuellement au moins un stabilisant de peroxyde d'hydrogène, éventuellement au moins un tensioactif pour aider à incorporer un matériau de sensibilisation solide ou produire des bulles de gaz de dimensions homogènes dans le gel final, au moins un matériau à haute densité pour augmenter la densité du produit de sorte qu'il s'enfonce facilement dans l'eau et l'eau.
PCT/SE2019/051050 2018-10-25 2019-10-25 Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement WO2020085986A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19876911.9A EP3870557A4 (fr) 2018-10-25 2019-10-25 Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement
AU2019365614A AU2019365614B2 (en) 2018-10-25 2019-10-25 A sensitised, safe to manufacture and environmentally friendly explosive composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2018904060 2018-10-25
AU2018904060A AU2018904060A0 (en) 2018-10-25 Energetic composition, manufacture and use

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Publication Number Publication Date
WO2020085986A1 true WO2020085986A1 (fr) 2020-04-30
WO2020085986A8 WO2020085986A8 (fr) 2020-05-22

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EP (1) EP3870557A4 (fr)
AU (1) AU2019365614B2 (fr)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114380657A (zh) * 2022-01-12 2022-04-22 河北京煤太行化工有限公司 一种乳化铵油炸药及其制备工艺
EP4086236A1 (fr) 2021-05-05 2022-11-09 Hypex Bio Explosives Technology AB Composition sensibilisante pour émulsions énergétiques de peroxyde d'hydrogène

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364132A (en) * 1971-05-29 1974-08-21 Dynamit Nobel Ag Energy-supplying low-melting point mixtures
US4959108A (en) * 1988-05-26 1990-09-25 Submarine and Surface Blaster Pty. Limited Explosive compositions and method utilizing bulking and gassing agents
US5071496A (en) * 1990-05-16 1991-12-10 Eti Explosive Technologies International (Canada) Low level blasting composition
WO2013013272A1 (fr) * 2011-07-27 2013-01-31 Cmte Development Limited Composition explosive améliorée

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730789A (en) * 1969-07-08 1973-05-01 Us Navy Monopropellant composition including hydroxylamine perchlorate
ATE6245T1 (de) * 1979-11-05 1984-03-15 Imperial Chemical Industries Plc Zusammensetzung einer explosiven aufschlaemmung und verfahren zu ihrer herstellung.
RU2018135573A (ru) * 2016-03-10 2020-04-10 Филипс Лайтинг Холдинг Б.В. Система оценки загрязнения

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364132A (en) * 1971-05-29 1974-08-21 Dynamit Nobel Ag Energy-supplying low-melting point mixtures
US4959108A (en) * 1988-05-26 1990-09-25 Submarine and Surface Blaster Pty. Limited Explosive compositions and method utilizing bulking and gassing agents
US5071496A (en) * 1990-05-16 1991-12-10 Eti Explosive Technologies International (Canada) Low level blasting composition
WO2013013272A1 (fr) * 2011-07-27 2013-01-31 Cmte Development Limited Composition explosive améliorée

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3870557A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4086236A1 (fr) 2021-05-05 2022-11-09 Hypex Bio Explosives Technology AB Composition sensibilisante pour émulsions énergétiques de peroxyde d'hydrogène
WO2022233955A1 (fr) 2021-05-05 2022-11-10 Hypex Bio Explosives Technology Ab Composition sensibilisante pour émulsions de peroxyde d'hydrogène énergétiques
CN114380657A (zh) * 2022-01-12 2022-04-22 河北京煤太行化工有限公司 一种乳化铵油炸药及其制备工艺

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EP3870557A4 (fr) 2022-08-24
EP3870557A1 (fr) 2021-09-01
AU2019365614A1 (en) 2021-06-10
AU2019365614B2 (en) 2022-10-27
WO2020085986A8 (fr) 2020-05-22

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