US3718512A - Porous particles containing dispersed organic liquid and gaseous components - Google Patents

Porous particles containing dispersed organic liquid and gaseous components Download PDF

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Publication number
US3718512A
US3718512A US00079039A US3718512DA US3718512A US 3718512 A US3718512 A US 3718512A US 00079039 A US00079039 A US 00079039A US 3718512D A US3718512D A US 3718512DA US 3718512 A US3718512 A US 3718512A
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composition
explosive
component
solid component
liquid
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G Hurst
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KINEPAK Inc
KINETICS INT CORP
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KINETICS INT CORP
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Assigned to KINEPAK, INC. reassignment KINEPAK, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). JANUARY 03, 1978 - DELAWARE Assignors: TYLER HOLDING COMPANY
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/11—Particle size of a component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/11—Particle size of a component
    • Y10S149/112—Inorganic nitrogen-oxygen salt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/11—Particle size of a component
    • Y10S149/113—Inorganic oxygen-halogen salt

Definitions

  • the explosive compositions are rendered cap sensitive and highly brisant by providing a substrate which disperses the organic liquid while maintaining this fluid in intimate contact with dispersed air.
  • the preferred finely divided ionic nitrate substrates used in the present invention are prepared by grinding to the desired particle size, preferably less than 500 microns.
  • a cap for example a number 6 cap
  • the composition will not detonate upon explosion of the number 6 cap.
  • the cap for such an explosive is positioned above the liquid level, detonation will occur.
  • the undesirable affect of this phenomenon is that in the normal use of explosives such care in positioning the number 6 cap cannot and is not always taken, thus occasionally resulting in nondetonation upon explosion of the number 6 cap.
  • Such an occurrence is undesirable from a safety standpoint, and from the standpoint of the manufacturer who is desirable of producing an explosive which will detonate under any condition with a number 6 cap.
  • an explosive which is sensitive to a number 6 blasting cap.
  • an explosive composition which can be shipped in commerce as a nonexplosive. It is further desirable to have an explosive which is a two component explosive, preferably one being a liquid component and the other being a solid component. It is further desirable to possess a two component explosive composition which is mixed by the ultimate consumer or by a local distributor which can be easily mixed and combined. It is also desirable to possess a two component explosive, one component being liquid, the other component being solid which has a low cost while remaining number 6 cap sensitive.
  • the present invention broadly provides an economical, low cost, number 6 cap sensitive, explosive composition which can be shipped in commerce in two components, one liquid and one solid, and which can be easily mixed at the use situs. Certain preferable forms of the two component explosive are self mixing, thus requiring no shaking or physical intermixing of the two components.
  • the present invention therefore, provides a method of activating organic liquids which contain sufficient amounts of oxidizing groups potentially to provide high energy release, but which are normally insensitive to small blasting caps.
  • the invention provides explosive number 6 cap sensitive mixtures comprising a liquid component selected from nitroaliphatic hydrocarbons, nitroaromatic hydrocarbons, aliphatic nitrates and N- nitrohydrocarbons and mixtures thereof, said compounds or mixtures being detonable in large quantities with large boosters but insensitive to small blasting caps, a solid, insoluble, porous, absorbant component selected from alkali and alkaline earth metal nitrates, ammonium nitrate, alkali and alkaline earth metal perchlorates, ammonium perchlorate, diatomaceous earth and expanded low density silica, the said solid component having an average particle size of preferably less than about 500 microns and a substantially uniformly dispersed gaseous component.
  • the gaseous component can be provided in the form of air by limiting the amount of liquid used to a volume less than the interstitial volume of the solid component.
  • the solid component can be either free flowing or sintered.
  • a minor proportion of a hydrocarbon fuel can be admixed with the liquid component if desired.
  • Mixing of the solid, liquid and gaseous components can be accomplished without external mechanical agitation through capillary action in the finely divided solid, producing a homogeneous mixture of solid, liquid and gaseous components. The mixture will not separate or stratify and does not require gelling agents to maintain homogeneity.
  • a container for the solid component of the two component mixture comprises an enclosure for holding a predetermined amount of the solid component of the explosive mixture, and means in said enclosure for admitting a liquid component thereto.
  • method for detonating the two component explosive mixture of the present invention comprises adding to the porous solid a non-cap sensitive, potentially detonable liquid, contacting the mixture with an explosive cap having a rating at least equal to a commercial number 6 cap, and exploding the cap, thereby detonating the mixture.
  • FIGS. 1 through 3 illustrate one form of a container for the explosive of the present invention
  • FIG. 4 illustrates a container for a solid component of theexplosive of the present invention
  • FIG. 5 illustrates a container for a liquid component of the'explosive of the present invention.
  • the present invention has two aspectssThe first is the provision of a two component cap sensitive explosive which is composedof a liquid component and a solid component containing a dispersed gas. Each of these components is a non-cap sensitive composition which can be shipped in commerce without the normal restrictions and expense applied to compositions rated as explosives.
  • the second portion of this invention relates to containers for the components of the explosive, which containers provide an easy means of combining and intermixing the two non-explosive components to form an explosive composition.
  • the explosive composition of the present invention includes a liquid component which can be stored and transported conveniently in a bottle, can or other suitable container to its site of use.
  • the liquid component of the explosive of the present invention is a non-cap sensitive hydrocarbon material, capable of being freely shipped in normal commerce, which is activated at a use situs by the porous solid component of the explosive of the present invention.
  • the iiquid component of the present invention is characterized by a non-cap sensitive liquid hydrocarbon material containing bonded nitrogen in a positive valence state.
  • Typical compounds of this class of materials are the nitro and nitrated hydrocarbons.
  • Exemplary materials which can be utilized within the scope of the present invention include nitroaliphatic hydrocarbons, nitroaromatic hydrocarbons, aliphatic nitrates, N-nitrohydrocarbons and mixtures thereof.
  • Preferable liquid components include the nitroalkane compounds containing 3 or less carbon atoms and mixtures of the lower dinitroaromatic compounds. Most preferably nitromethane and the dinitrotoluene oils are utilized.
  • the liquid component can be present in amounts from about 6 percent to about 60 percent by weight of the explosive composition. It is most preferred that the liquid component comprise from about 12 percent to about 35 percent by weight of the total explosive composition.
  • the explosive composition includes a second porous, solid component which can be stored'and transported conveniently in flexible or rigid plastic, fiber or other suitable containers to its site of use.
  • the solid com-' ponent of the explosive of the present invention preferably comprises a non-cap sensitive inert or oxidizing material, capable of being freely shipped in normal commerce.
  • the primary function of the solid component is to provide a porous base or substrate which will uniformly disperse the liquid component by capillary action, thereby automatically providing an intimate mixture of finely divided liquid component and air.
  • a second function of providing additional energy through the reaction of an oxidizing group with excess fuel portion'in the liquid component can be provided by an oxidizing solid component.
  • an oxidizing substrate contains potential gas forming elements in addition to the elements of the oxidizing group a third function of the solid component is to provide expandible gas capable of doing useful work.
  • Solid components usable within the scope of the present invention are alkali and alkaline earth metal nitrates, ammonium nitrate, alkali and alkaline earth metal perchlorates and ammonium perchlorate.
  • Preferred solid components include potassium, sodium and ammonium perchlorates, diatomaceous earth and'expanded silica, while ammonium nitrate, sodium nitrate, and potassium nitrate are most preferred.
  • the solid component compositions are usually obtained as articles of commerce, they are not desirable for use in the explosive composition of the present invention.
  • the interstitial volume be at least about 10 percent by volume greater than the amount of liquid component to be combined therewith. Most preferably the remaining interstitial volume should be at least about 10 percent greater than the volume of the amount of liquid component corresponding to an oxygen balanced final explosive mixture.
  • Two methods can be used to produce a substrate of the desired lower bulk density. In the first method, the finely divided solid, in a loose, fluffy condition is treated with water, from about 0.2 percent to about Spercent by weight, preferably about 1 percent. Alternatively, moist air of corresponding water content can be used.
  • the moist solid is then dried at ambient or higher temperatures to produce lightly sintered agglomerates which resist settling and compacting.
  • the ground solid can be screened through various screens to produce individual fractions of uniform particle size and lower bulk density. Carefully controlled grinding procedures can eliminate the necessity for these secondary treatments in many cases; however, such treatments are useful and generally desirable in producing two component explosive compositions in which long diffusion paths for the liquid are needed and/or in which very rapid mixing is required.
  • Minor proportions of a fuel component can also be added to the liquid component under certain conditions.
  • the porous solid component is an oxidizing material and it is desired to obtain a final explosive mixture which is essentially oxygen balanced, it can occur that the amount of liquid component required exceeds the interstitial volume of the solid component, resulting in a mixture that is not cap sensitive.
  • a minor proportion of a fuel component having a higher fuel value per unit volume than the nitrogen containing liquid is admixed therewith. This will produce a final liquid component which can be added to the solid component in lesser volumetric quantity, yielding a final explosive mixture which is oxygen balanced and which contains the necessary interstitially dispersed air.
  • a small quantity of a fuel component can be added to the liquid component to reduce the setting point or freezing point to a more convenient range.
  • Fuels which can be used to increase the volumetric fuel value of the liquid component must meet three basic requirements: First, they must be chemically compatible with the liquid component; second, they must be miscible with the liquid component in the desired ratio and; third, they must have a substantially higher volumetric fuel value than the liquid component. Numerous inexpensive commercially available compounds and mixtures meet the above requirements.
  • aromatic hydrocarbons benzene, toluene, xylene, aromatic naphtha
  • lower aliphatic alcohols methanol, ethanol, isopropanol
  • lower ethers lower ketones, lower aldehydes, lower organic acids, lower esters, and small quantities of gasoline fraction aliphatic hydrocarbons.
  • the gaseous component of the present invention can be present in amounts ranging from about 2 percent to about 90 percent by volume of the total explosive composition. It is preferred, however that the gaseous component is present in the range of from about 5% to 50% by volume.
  • EXAMPLE I Sodium nitrate crystals are ground by hand with a mortar and pestle to produce a fine powder having an average particle size of less than about microns.
  • a sample of the powder (20 g) is lightly tamped into an aluminum tube (2.5 inches long X Vs inch l..D. X 1 inch O.D.) afiixed at one end to the center of a square piece of cold rolled steel (3 X 3 X 5i; inches). Nitromethane (10 g) is added to the contents of the tube without agitation.
  • the metal test fixture is mounted symmetrically on a perpendicular 3 inch length of 2 inch pipe resting on a large steel plate about one-fourth inch thick.
  • a number 6 cap is placed in the top center of the aluminum tube in intimate contact with the contents and detonated. The charge explodes producing a dent in the steel plate which is 0.079 inch deep at the center.
  • Example II The procedure of Example I is repeated substituting 7 grams of diatomaceous earth for the sodium nitrate. Upon detonation, a loud report occurs and the steel plate is dented 0.029 inch.
  • Example III The procedure of Example I is repeated substituting 20 grams of potassium nitrate for the sodium nitrate. Upon detonation, a loud report is heard and the steel plate is dented 0.082 inch.
  • Example IV The procedure of Example I is repeated except that the average particle size of the ammonium nitrate is greater than 100 microns and less than 250 microns. Substantially the same results are obtained.
  • Example V The procedure of Example I is repeated substituting 20 grams of ammonium nitrate for the sodium nitrate. Upon detonation, a loud report is heard and the plate is dented 0.080 inch.
  • EXAMPLE VI A mixture of diatomaceous earth (28 g) and dinitrotoluene oil (20 g, setting point 35 C.) is prepared by warming the components to 75 C. The mixture is wrapped in aluminum foil and placed on a 5% inch steel plate on the ground. On initiating the mixture with a number 6 cap, a loud report is heard and the steel plate is significantly bent.
  • EXAMPLE VII A mixture of dinitrotoluene oil g, setting point 26 C.) and high boiling petroleum naphtha (10 g) is prepared yielding a liquid composition at room temperature. This mixture is added to 1,000 g of finely divided ammonium nitrate (average particle size less than 100 microns). The final mixture is placed in a plastic bag on a limestone boulder approximately one cubic yard in size. The mixture is detonated with a number 6 cap producing a loud report and shattering the boulder.
  • EXAMPLE VIII A mixture of 40 grams of xylol and 185 grams of nitromethane is prepared and added to 1,000 grams of finely divided ammonium nitrate (average particle size less than 100 microns). The final mixture in a plastic bag is placed on a limestone boulder about two cubic yards in size and detonated with a number 6 cap. A loud report is heard and the boulder is shattered.
  • EXAMPLE IX A large batch of ammonium nitrate powder is prepared with a high capacity production plant hammer mill. A sample of the material (150 g) having an average particle size less than about 100 microns is firmly tamped into a foil laminate pouch and sufficient nitromethane (75 g) is added to the pouch to produce an oxygen balanced mixture. The final mixture appears very wet with free liquid visible. The foil pouch is placed on a steel plate (3 X 3 X inches) and detonated with a number 6 cap. A weak report is heard. The steel plate is undamaged.
  • Example IX The procedure of Example IX is repeated substituting a mixture of 52.2 grams nitromethane and 3.0 grams of xylol for the straight nitromethane to produce a second oxygen balanced mixture of lesser liquid volume with correspondingly greater gas volume. Upon detonation with a number 6 cap a loud report is heard and the steel plate is severely bent and dented.
  • Example IX The procedure of Example IX is repeated substituting 150 grams of the plant ground ammonium nitrate identical to that of Example 1X but the material is mixed with 1 percent by weight water, allowed to stand for 10 minutes, and dried at room temperature for two hours on trays before it is tamped into the pouch. This procedure decreases the ultimate bulk density of the ammonium nitrate. Upon detonation a loud report is heard and the steel plate is severely bent and dented.
  • EXAMPLE XII A mixture of 29 grams of nitromethane and 1.7 grams of xylol is sealed in a small pouch made of polyethylene-aluminum foil (0.00035 inch)- polyethylene-polypropylene laminate having an overall thickness less than 0.004 inch. The sealed pouch is placed in an oven at 75 C. for one week. Upon weighing to the nearest one one-hundredth gram, the sample is found to have lost no measurable weight.
  • EXAMPLE XIII Finely ground ammonium nitrate (166 g) is sealed in a pouch identical to that described in Example XII. The pouch is immersed in seven inches of water for 1 week.
  • the pouch is opened and a mixture of 57.7 g of nitromethane and 3.32 grams of xylol is added.
  • the mixture is placed on a steel plate (3 X 3 X 34: inches) and detonated with a number 6 cap. A loud report is heard and the steel plate is severely dented and bent.
  • EXAMPLE XIV A mixture of finely ground ammonium nitrate (83 g) having an average particle size less than microns and nitromethane (30 g) in a foil laminate cylinder having about 1.1 inch diameter and 6 inches long is immersed half way in an open container of unsensitized nitromethane (1,500 g). A number 6 cap is inserted in the top of the cylinder about 3 inches above the surface of the nitromethane. Upon detonation, a very loud report is heard and extensive ground damage occurs showing that the nitromethane has detonated.
  • EXAMPLE XV A mixture of finely ground ammonium nitrate (83 g) having an average particle size less than about 100 microns and nitromethane (35 g) in an aluminum foil laminate pouch is immersed in 2,000 g of prilled ammonium nitrate/ fuel oil (AN/F0) mixture in -a plastic bag. The bag is placed on a boulder of about one cubic yard volume. A number 6 cap is placed in the foil laminate pouch. Upon detonation, a very loud report occurs and the boulder is shattered showing that the AN/FO detonated.
  • AN/F0 prilled ammonium nitrate/ fuel oil
  • the liquid component and the solid component are held in separate containers until they are to be used.
  • the liquid component can be packaged in standard metal cans, glass bottles or plastic containers.
  • Each of these containers in addition to being expensive for small packages, has certain other disadvantages.
  • metal cans tend to rust; glass bottles are extremely fragile and plastic containers allow volatile materials to evaporate over a period of time. All of these problems can be solved by using a novel explosive component packaging material consisting of plastic laminated to aluminum foil preferably forming a sandwich structure with an inner layer of polyethylene bonded to thin aluminum foil or sheeting which is in turn bonded to a second layer of polyethylene.
  • a final outer layer of paper, polypropylene, polyester film, etc. can be added to increase stiffness and strength. Sheets of these materials can be heat bonded or sealed at the polyethylene surfaces to form pouches, sticks and various other configurations, which are tough, waterproof, lightproof, diffusion proof and inexpensive. These same properties make foil laminate packaging ideally suited for the solid component with the added advantage that the containers are flexible, which is a highly desirable property for many explosive applications.
  • the explosive composition of this invention is prepared by adding the liquid component to the solid component in its package.
  • the solid container becomes in practice a cap sensitive explosive container with excellent properties.
  • the impermeability of the foil laminate prevents evaporation of liquid components while acting as a very efficient moisture barrier.
  • Foil laminate containers would, therefore, also be equally suitable for packaging conventional explosives.
  • the foil laminate packaged explosive components are used as follows. First, one end of a package containing an amount of solid component insufficient to fill the container is torn or cut off. Second, one end of a second, preferably oblong package containing an amount of liquid component insufficient to fill the container is torn or cut 011'. Third, the liquid component is poured into the solid component package.
  • the torn end of the solid component package is rolled or folded tightly to reseal the package.
  • a number 6 or larger detonating cap is placed firmly against the solid component package or inserted through a hole in the package and detonated.
  • Numerous explosive devices are adaptable for use with the two component explosive composition. These devices include but are not limited to: lined and unlined shaped charges, boulder breaking charges, boosters, secondary blasting charges, seismic charges, fuses, bombs, grenades, mines and borehole charges.
  • a novel use of the two component explosive is in devices containing dual explosive charges the secondary charge of which is a detonable non-cap sensitive explosive such as nitromethane or an ammonium nitrate fuel oil mixture (AN/F).
  • the primary or booster charge is the two component explosive.
  • the liquid of the secondary charge can be used as a liquid component of the two component explosive.
  • FIGS. 1, 2, and 3 show a perspective, partially broken away top view, and cross-sectional elevation view of a dual explosive demolition device utilizing AN/FO as the main charge and the two component explosive of the present invention as a booster charge.
  • the dual explosive device includes a secondary charge container generally designated containing a recessed portion 12 for holding the primary or booster charge 14.
  • the secondary charge 16 is confined in the remainder of the secondary charge container 10.
  • the secondary charge container can also have formed therein a recessed portion 18 to shape the secondary charge.
  • the container 10 and recessed portion 12 can be composed of any suitable material such as polystyrene.
  • the secondary charge container 10 is hermetically sealed to prevent moisture from entering the container, thus detrimentally affecting the secondary charge material 16 inside the container 10.
  • the recessed portion 12 containing the primary booster charge 14 has openings 20 therein to the exterior thereof.
  • a sealing member 22 which can be formed of conventional sealing material having adhesive on one side 24 and composed of an aluminum, paper or other moisture impervious material on the other side 26.
  • the sealing member 22 is peeled back from the openings and the liquid component of the two component booster charge is admitted to the recess 12 and allowed to mix with the solid component 14 therein.
  • the booster charge is thus prepared in accordance with the foregoing procedure.
  • This procedure and packaging system provides an effective safe charge of extremely low cost. Furthermore, since the containers and charges therein are not rated as primary explosives, the instant container can be shipped very economically through interstate commerce.
  • FIGS. 4 and 5 show another embodiment of a dual explosive, lined, shaped charged device capable of puncturing several inches into cold rolled steel.
  • the container for the secondary charge 30 is cylindrically shaped with a charge shaping conical section 32 in the bottom thereof.
  • the cylindrical secondary charge container 30 has a recess 34 in the top thereof for receiving a primary charge or booster container 36.
  • the booster container 36 is removably inserted in the recess 34.
  • the secondary charge container 30 contains a cap insensitive material 38 such as nitromethane.
  • the booster charge 40 in the booster container 36 contains the solid component of the present invention.
  • the booster container also contains a bore or recess 42 for receiving a number 6 or larger explosives cap.
  • an opening 44 which has a removable lid thereon, here shown as threaded cap 46.
  • the liquid component of the explosive composition of the present invention is poured into the container 36 through the opening 44. Thereafter a cap is inserted in the bore 42 and exploded to detonate the booster charge which in turn detonates the secondary charge 38 in the secondary container 30.
  • the liquid component of this embodiment of the present invention can be contained in a foil laminate pouch 48 such as described above.
  • the liquid component of the present invention is contained in a foil laminate pouch 48 shown in FIG. 5.
  • the foil laminate pouch is formed from a single sheet of material and is heat sealed across its top portion 50 after the liquid component is placed therein.
  • the foil laminate pouch can be formed, for example, from a first interior layer of polyethylene laminated to a metal foil layer, for example aluminum foil. Laminated to the exterior of the aluminum foil is a second layer of polyethylene on top of which an exterior most layer of paper, polypropylene, polyester film or the like can be laminated.
  • An explosive, number 6 blasting cap sensitive, composition comprising:
  • a solid, porous, absorbent component of particles having a size of less than about 1,000 microns and being selected from alkali and alkaline earth metal nitrates, ammonium nitrate, alkali and alkaline earth metal perchlorates, ammonium perchlorate, diatomaceous earth and expanded low density silica; liquid component admixed with said solid component in a volumetric amount less than the interstitial volume of said solid component and dispersed by capillary action within said solid component, said solid component being insoluble in said liquid component, and said liquid component being composed of a non-cap sensitive liquid hydrocarbon containing bonded nitrogen in a positive valence state, and wherein said capillary action results in from about 2 percent to about 90 percent by volume of said composition of a substantially uniformly dispersed gaseous component.
  • liquid component is selected from nitroaliphatic hydrocarbons, nitroaromatic hydrocarbons, aliphatic nitrates, N-nitrohydrocarbons and mixtures thereof.
  • composition of claim 2 wherein said solid component has an average particle size of less than about 500 microns.
  • composition of claim 3 wherein said solid component has an average particle size of from about 5 to about 250 microns.
  • composition of claim 2 wherein said gaseous component comprises at least about 5 percent by volume of said explosive composition.
  • composition of claim 2 wherein said liquid component comprises from about 6 percent to about 60 percent by weight of the explosive composition.
  • composition of claim 9 wherein said nitroalkane is nitromethane.
  • composition of claim 2 wherein said liquid component is a dinitrotoluene oil.
  • composition of claim 5 wherein said liquid component is a nitroalkane admixed with a minor proportion of a soluble hydrocarbon fuel.
  • composition of claim 12 wherein said nitroalkane is nitromethane.
  • composition of claim 5 wherein said liquid component is a mixture of dinitrotoluene containing a minor proportion of a hydrocarbon fuel.
  • composition of claim 2 wherein component is sodium nitrate.
  • composition of claim 2 wherein component is potassium nitrate.
  • composition of claim 2 wherein component is sodium perchlorate.
  • composition of claim 2 wherein component is diatomaceous earth.
  • composition of claim 2 wherein said gaseous component is air present in an amount between about 5 percent and about 50 percent by volume of the total com osition.
  • composition of claim 1 wherein the bulk density of the solid component is less than about 1.4 g/cc.
  • composition of claim 25 wherein the bulk density of the solid component is less than about 1.0 g/cc.
  • the explosive composition of claim 2 further comprising a booster charge located in proximity to a secondary non-cap sensitive explosive.
  • composition of claim 27 wherein said explosive composition is in the form of a shaped charge.

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  • Chemical & Material Sciences (AREA)
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US00079039A 1970-10-08 1970-10-08 Porous particles containing dispersed organic liquid and gaseous components Expired - Lifetime US3718512A (en)

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US (1) US3718512A (enrdf_load_stackoverflow)
AR (1) AR199991A1 (enrdf_load_stackoverflow)
AU (1) AU472399B2 (enrdf_load_stackoverflow)
CA (1) CA964467A (enrdf_load_stackoverflow)
DE (1) DE2149979A1 (enrdf_load_stackoverflow)
FR (1) FR2112973A5 (enrdf_load_stackoverflow)
GB (1) GB1364920A (enrdf_load_stackoverflow)
IL (1) IL37870A (enrdf_load_stackoverflow)
MY (1) MY7600117A (enrdf_load_stackoverflow)
NO (1) NO129143B (enrdf_load_stackoverflow)
OA (1) OA03866A (enrdf_load_stackoverflow)
SU (1) SU476745A3 (enrdf_load_stackoverflow)
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US3926119A (en) * 1974-01-28 1975-12-16 Tyler Holding Company Explosive device
US4076562A (en) * 1976-11-05 1978-02-28 Richard Wells Forsythe Explosive composition with adhered air entrapping material
US5226986A (en) * 1991-11-12 1993-07-13 Hansen Gary L Formulation of multi-component explosives
US5516378A (en) * 1995-04-11 1996-05-14 Olin Corporation Explosive composition and its use in making ammunition
US6536349B2 (en) * 2001-03-21 2003-03-25 Halliburton Energy Services, Inc. Explosive system for casing damage repair
US20030073972A1 (en) * 2000-04-05 2003-04-17 Biocardia, Inc. Implant delivery catheter system and methods for its use
US6606950B1 (en) * 2001-07-24 2003-08-19 Charles Ray Putman Method and apparatus for positioning a shaped charge
US6960267B1 (en) 2003-06-26 2005-11-01 Nixon Iii William P Multi-component liquid explosive composition and method
US7954433B1 (en) * 2008-07-24 2011-06-07 Matt Bradley Barnett Explosive shaped charge device
EP2173688A4 (en) * 2007-07-06 2012-07-25 Bae Systems Bofors Ab METHOD AND DEVICE FOR MIXING AND IGNITIONING A PYROTECHNICAL CHARGE
US20150083009A1 (en) * 2013-02-04 2015-03-26 Babcock And Wilcox Technical Services Y-12, Llc Explosive bulk charge
US9175933B2 (en) 2014-02-21 2015-11-03 The United States Of America, As Represented By The Secretary Of The Army Simple low-cost hand-held landmine neutralization device
EP3228972A1 (fr) 2016-04-06 2017-10-11 Nitrates & Innovation Ensemble de deux reservoirs prêts a être assembles par vissage pour former une cartouche d'explosif bi-composant
US10227266B2 (en) 2012-11-14 2019-03-12 EST Energetics GmbH Detonator-sensitive assembled booster charges for use in blasting engineering and the use thereof
RU2845636C1 (ru) * 2025-06-10 2025-08-25 Игорь Валентинович Клишин Скважинный заряд

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GB2169690B (en) * 1984-11-23 1989-01-11 Du Pont Canada Method for severing an elongate article
RU2404358C2 (ru) * 2008-03-20 2010-11-20 Шлюмберже Текнолоджи Б.В. Скважинный генератор импульсов сжатия

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Cited By (22)

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US3810425A (en) * 1972-12-04 1974-05-14 J Post Method of blasting with an nh{11 {11 no{11 -{11 nitropropane blasting agent
US3926119A (en) * 1974-01-28 1975-12-16 Tyler Holding Company Explosive device
US4076562A (en) * 1976-11-05 1978-02-28 Richard Wells Forsythe Explosive composition with adhered air entrapping material
US5226986A (en) * 1991-11-12 1993-07-13 Hansen Gary L Formulation of multi-component explosives
US5516378A (en) * 1995-04-11 1996-05-14 Olin Corporation Explosive composition and its use in making ammunition
WO1996032362A1 (en) * 1995-04-11 1996-10-17 Primex Technologies, Inc. Explosive composition and its use in making ammunition
US6971998B2 (en) * 2000-04-05 2005-12-06 Biocardia, Inc. Implant delivery catheter system and methods for its use
US20030073972A1 (en) * 2000-04-05 2003-04-17 Biocardia, Inc. Implant delivery catheter system and methods for its use
US6536349B2 (en) * 2001-03-21 2003-03-25 Halliburton Energy Services, Inc. Explosive system for casing damage repair
US6606950B1 (en) * 2001-07-24 2003-08-19 Charles Ray Putman Method and apparatus for positioning a shaped charge
US6960267B1 (en) 2003-06-26 2005-11-01 Nixon Iii William P Multi-component liquid explosive composition and method
US8603271B2 (en) 2007-07-06 2013-12-10 Bae Systems Bofors Ab Method and device for mixing and initiating a pyrotechnic charge
EP2173688A4 (en) * 2007-07-06 2012-07-25 Bae Systems Bofors Ab METHOD AND DEVICE FOR MIXING AND IGNITIONING A PYROTECHNICAL CHARGE
US7954433B1 (en) * 2008-07-24 2011-06-07 Matt Bradley Barnett Explosive shaped charge device
US10227266B2 (en) 2012-11-14 2019-03-12 EST Energetics GmbH Detonator-sensitive assembled booster charges for use in blasting engineering and the use thereof
US20150083009A1 (en) * 2013-02-04 2015-03-26 Babcock And Wilcox Technical Services Y-12, Llc Explosive bulk charge
US9010249B2 (en) * 2013-02-04 2015-04-21 Consolidated Nuclear Security, LLC Explosive bulk charge
US9175933B2 (en) 2014-02-21 2015-11-03 The United States Of America, As Represented By The Secretary Of The Army Simple low-cost hand-held landmine neutralization device
US9506729B2 (en) 2014-02-21 2016-11-29 The United States Of America, As Represented By The Secretary Of The Army Field mixable two-component liquid explosive
US9797693B1 (en) 2014-02-21 2017-10-24 The United States Of America, As Represented By The Secretary Of The Army Adjustable stand for holding a liquid explosive
EP3228972A1 (fr) 2016-04-06 2017-10-11 Nitrates & Innovation Ensemble de deux reservoirs prêts a être assembles par vissage pour former une cartouche d'explosif bi-composant
RU2845636C1 (ru) * 2025-06-10 2025-08-25 Игорь Валентинович Клишин Скважинный заряд

Also Published As

Publication number Publication date
AU3404371A (en) 1973-04-05
NO129143B (enrdf_load_stackoverflow) 1974-03-04
DE2149979A1 (de) 1972-04-13
CA964467A (en) 1975-03-18
GB1364920A (en) 1974-08-29
OA03866A (fr) 1971-12-24
MY7600117A (en) 1976-12-31
ZA716211B (en) 1972-10-25
IL37870A0 (en) 1971-12-29
IL37870A (en) 1975-03-13
SU476745A3 (ru) 1975-07-05
AU472399B2 (en) 1976-05-27
FR2112973A5 (enrdf_load_stackoverflow) 1972-06-23
AR199991A1 (es) 1974-10-15

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