EP3870557A1 - 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

Info

Publication number
EP3870557A1
EP3870557A1 EP19876911.9A EP19876911A EP3870557A1 EP 3870557 A1 EP3870557 A1 EP 3870557A1 EP 19876911 A EP19876911 A EP 19876911A EP 3870557 A1 EP3870557 A1 EP 3870557A1
Authority
EP
European Patent Office
Prior art keywords
explosive composition
composition according
explosive
previous
solution
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.)
Pending
Application number
EP19876911.9A
Other languages
German (de)
English (en)
Other versions
EP3870557A4 (fr
Inventor
Miguel ARAOS
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.)
Hypex Bio Explosives Technology AB
Original Assignee
Etken Teknologi AB
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 Etken Teknologi AB filed Critical Etken Teknologi AB
Publication of EP3870557A1 publication Critical patent/EP3870557A1/fr
Publication of EP3870557A4 publication Critical patent/EP3870557A4/fr
Pending 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
    • 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.

Landscapes

  • 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.
EP19876911.9A 2018-10-25 2019-10-25 Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement Pending EP3870557A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2018904060A AU2018904060A0 (en) 2018-10-25 Energetic composition, manufacture and use
PCT/SE2019/051050 WO2020085986A1 (fr) 2018-10-25 2019-10-25 Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement

Publications (2)

Publication Number Publication Date
EP3870557A1 true EP3870557A1 (fr) 2021-09-01
EP3870557A4 EP3870557A4 (fr) 2022-08-24

Family

ID=70331549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19876911.9A Pending EP3870557A4 (fr) 2018-10-25 2019-10-25 Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement

Country Status (3)

Country Link
EP (1) EP3870557A4 (fr)
AU (1) AU2019365614B2 (fr)
WO (1) WO2020085986A1 (fr)

Families Citing this family (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
CN114380657B (zh) * 2022-01-12 2022-12-09 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
CN116967595A (zh) * 2023-09-14 2023-10-31 湖北玉昊金属复合材料有限公司 一种用于爆炸焊接的吸收剂、装置及方法

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925373A (fr) 1900-01-01
US3294601A (en) 1966-02-09 1966-12-27 Little Inc A Hexamethylene tetramine and ammonium nitrate containing explosive composition
US3367805A (en) 1965-06-02 1968-02-06 Intermountain Res And Engineer Thickened inorganic nitrate aqueous slurry containing finely divided aluminum having a lyophobic surface of high surface area
GB1285151A (en) 1970-04-07 1972-08-09 Bp Chem Int Ltd Stabilisation process
US3701825A (en) 1970-10-23 1972-10-31 Fmc Corp Stabilization of hydrogen peroxide with ethylenediamine tetra (methylenephosphonic acid)
US4288048A (en) 1979-03-06 1981-09-08 U.S. Philips Corporation Cassette
US4294575A (en) 1979-01-02 1981-10-13 Monsanto Company Peroxide stabilization
US4304762A (en) 1978-09-27 1981-12-08 Lever Brothers Company Stabilization of hydrogen peroxide
US4320102A (en) 1980-10-10 1982-03-16 Air Products And Chemicals, Inc. Method of stabilizing hydrogen peroxide solutions
US4380482A (en) 1981-01-16 1983-04-19 E. I. Du Pont De Nemours And Company Stabilization of water-bearing explosives having a thickened continuous aqueous phase
US4477438A (en) 1982-11-12 1984-10-16 Surgikos, Inc. Hydrogen peroxide composition
US4737207A (en) 1985-12-23 1988-04-12 Nitro Nobel Ab Method for the preparation of a water-in-oil type emulsion explosive and an oxidizer composition for use in the method
EP0161821B1 (fr) 1984-04-19 1989-02-01 Ici Australia Limited Compositions explosives à base d'émulsion eau-dans-huile sensibilisées par des bulles de gaz
US4948440A (en) 1987-10-05 1990-08-14 C-I-L Inc. Emulsion blasting agent preparation system
US4959108A (en) 1988-05-26 1990-09-25 Submarine and Surface Blaster Pty. Limited Explosive compositions and method utilizing bulking and gassing agents
US4995925A (en) 1988-02-22 1991-02-26 Nitro Nobel Ab Blasting composition
US6537399B2 (en) 1997-06-26 2003-03-25 Union Espanola De Explosivos, S.A. Process and mechanism for in situ sensitization of aqueous explosives
US6555020B1 (en) 1998-10-29 2003-04-29 Den-Mat Corporation Stable tooth whitening gels containing high percentages of hydrogen peroxide
US7169743B2 (en) 2004-07-09 2007-01-30 Arkema Inc. Stabilized thickened hydrogen peroxide containing compositions with a mixture of stabilizers
WO2011006045A1 (fr) 2009-07-09 2011-01-13 Wal-Mart Stores, Inc. Procédé et système pour produire du café fin
WO2013013272A1 (fr) 2011-07-27 2013-01-31 Cmte Development Limited Composition explosive améliorée

Family Cites Families (5)

* 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
DE2126921C3 (de) * 1971-05-29 1981-07-16 Dynamit Nobel Ag, 5210 Troisdorf Energielieferndes, zur Herstellung von Sprengstoffen geeignetes eutektisches Gemisch mit niedrigem Erstarrungspunkt und seine Verwendung
ATE6245T1 (de) * 1979-11-05 1984-03-15 Imperial Chemical Industries Plc Zusammensetzung einer explosiven aufschlaemmung und verfahren zu ihrer herstellung.
US5071496A (en) * 1990-05-16 1991-12-10 Eti Explosive Technologies International (Canada) Low level blasting composition
JP6494009B1 (ja) * 2016-03-10 2019-04-03 シグニファイ ホールディング ビー ヴィ 汚染推定システム

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925373A (fr) 1900-01-01
US3367805A (en) 1965-06-02 1968-02-06 Intermountain Res And Engineer Thickened inorganic nitrate aqueous slurry containing finely divided aluminum having a lyophobic surface of high surface area
US3294601A (en) 1966-02-09 1966-12-27 Little Inc A Hexamethylene tetramine and ammonium nitrate containing explosive composition
GB1285151A (en) 1970-04-07 1972-08-09 Bp Chem Int Ltd Stabilisation process
US3701825A (en) 1970-10-23 1972-10-31 Fmc Corp Stabilization of hydrogen peroxide with ethylenediamine tetra (methylenephosphonic acid)
US4304762A (en) 1978-09-27 1981-12-08 Lever Brothers Company Stabilization of hydrogen peroxide
US4294575A (en) 1979-01-02 1981-10-13 Monsanto Company Peroxide stabilization
US4288048A (en) 1979-03-06 1981-09-08 U.S. Philips Corporation Cassette
US4320102A (en) 1980-10-10 1982-03-16 Air Products And Chemicals, Inc. Method of stabilizing hydrogen peroxide solutions
US4380482A (en) 1981-01-16 1983-04-19 E. I. Du Pont De Nemours And Company Stabilization of water-bearing explosives having a thickened continuous aqueous phase
US4477438A (en) 1982-11-12 1984-10-16 Surgikos, Inc. Hydrogen peroxide composition
EP0161821B1 (fr) 1984-04-19 1989-02-01 Ici Australia Limited Compositions explosives à base d'émulsion eau-dans-huile sensibilisées par des bulles de gaz
US4737207A (en) 1985-12-23 1988-04-12 Nitro Nobel Ab Method for the preparation of a water-in-oil type emulsion explosive and an oxidizer composition for use in the method
US4948440A (en) 1987-10-05 1990-08-14 C-I-L Inc. Emulsion blasting agent preparation system
US4995925A (en) 1988-02-22 1991-02-26 Nitro Nobel Ab Blasting composition
US4959108A (en) 1988-05-26 1990-09-25 Submarine and Surface Blaster Pty. Limited Explosive compositions and method utilizing bulking and gassing agents
US6537399B2 (en) 1997-06-26 2003-03-25 Union Espanola De Explosivos, S.A. Process and mechanism for in situ sensitization of aqueous explosives
US6555020B1 (en) 1998-10-29 2003-04-29 Den-Mat Corporation Stable tooth whitening gels containing high percentages of hydrogen peroxide
US7169743B2 (en) 2004-07-09 2007-01-30 Arkema Inc. Stabilized thickened hydrogen peroxide containing compositions with a mixture of stabilizers
WO2011006045A1 (fr) 2009-07-09 2011-01-13 Wal-Mart Stores, Inc. Procédé et système pour produire du café fin
WO2013013272A1 (fr) 2011-07-27 2013-01-31 Cmte Development Limited Composition explosive améliorée

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DUE-HANSENMARIA E.OVE DULLUM: "Review and analysis of the explosion accident in Drevja, Norway: a consequence of fire in a mobile explosives manufacturing unit (MEMU) carrying precursors for the on-site production of bulk explosives.", SAFETY SCIENCE, vol. 96, 2017, pages 33 - 40, XP085001067, DOI: 10.1016/j.ssci.2017.03.003
JULIE SCHMUCKER-CASTNERDILIP DESAI: "Presented at the Society of Cosmetic Chemists Conference", December 1997, article "Rheology Modification of Hydrogen Peroxide-Based Applications Using Cross-Linked Polyacrylic Acid Polymers"
See also references of WO2020085986A1

Also Published As

Publication number Publication date
WO2020085986A8 (fr) 2020-05-22
WO2020085986A1 (fr) 2020-04-30
AU2019365614B2 (en) 2022-10-27
AU2019365614A1 (en) 2021-06-10
EP3870557A4 (fr) 2022-08-24

Similar Documents

Publication Publication Date Title
Mahadevan Ammonium nitrate explosives for civil applications: slurries, emulsions and ammonium nitrate fuel oils
AU2012286593B2 (en) Improved explosive composition
US3791255A (en) Method of filling boreholes with viscous slurried explosives
US3456589A (en) High pressure explosive compositions and method using hollow glass spheres
EP3870557A1 (fr) Composition explosive sensibilisée, sans danger pour la fabrication et respectueuse de l'environnement
EP3551597A1 (fr) Composition explosive améliorée
ZA200405073B (en) A method for preparing a sensitised emulsion explosive
AU2013217230B2 (en) Oxidizer solution
Sudweeks Physical and chemical properties of industrial slurry explosives
KR101060523B1 (ko) 친환경적인 고위력 유중수적형 에멀젼 폭약 조성물
CA2363212C (fr) Procede de dynamitage pour reduire les vapeurs d'oxide de nitrate
EP4086237B1 (fr) Composition de formation d'un explosif en émulsion à base de peroxyde d'hydrogène
RU101167U1 (ru) Патрон предохранительного эмульсионного взрывчатого вещества
EP4086238B1 (fr) Composition pour former un explosif comprenant une émulsion de peroxyde d'hydrogène et un combustible de type huileux
RU2526994C1 (ru) Предохранительный эмульсионный взрывчатый состав для шпуровых зарядов
RU2305673C1 (ru) Способ ведения взрывных работ в обводненной скважине зарядом эмульсионного взрывчатого вещества
KR20160095767A (ko) 발파용 금속혼합조성물, 이를 수용하는 방수패킷 및 이를 이용한 발파공법
JP2000128686A (ja) スム−スブラスティング発破工法
EP0568387B1 (fr) Composition basse densité d'explosif sous forme de gel aqueux, production et utilisation
RU2061864C1 (ru) Способ формирования контурных зарядов из эмульсионных взрывчатых веществ
RU98065U1 (ru) Патрон предохранительного эмульсионного взрывчатого вещества
JP3408837B2 (ja) 爆薬組成物の製造方法
KR20040009326A (ko) 저폭속 폭약의 조성물

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210521

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20220721

RIC1 Information provided on ipc code assigned before grant

Ipc: C06B 23/00 20060101ALI20220715BHEP

Ipc: C06B 47/00 20060101AFI20220715BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HYPEX BIO EXPLOSIVES TECHNOLOGY AB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20250311

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ARAOS, MIGUEL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20260217

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HYPEX BIO EXPLOSIVES TECHNOLOGY AB

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3