Classifications

• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
  • C06B31/02—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate
  • C06B31/12—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with a nitrated organic compound
  • C06B31/20—Compositions containing an inorganic nitrogen-oxygen salt the salt being an alkali metal or an alkaline earth metal nitrate with a nitrated organic compound the compound being 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
  • C06B23/005—Desensitisers, phlegmatisers
• • 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
  • C06B23/04—Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
  • C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
  • C06B31/32—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with a nitrated organic compound
  • C06B31/56—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with a nitrated organic compound the compound being nitrocellulose present as less than 10% by weight of the total composition

Definitions

• the ex- Adolf Berthmann and Paul Lingens, Leverkusen, Gerplosive composition should be gelatinous phase, preferably many, assignors to Dynamit Nobel Aktiengesellschaft, about 25 to 35 weight percent. Tmisdorf, y, a corporation of Germany According to this invention it is essential that the inp p Filed fiP 1966s 576550 organic salt component consist of a combination of am- Claims priority, application Germany, Sept. 7, 1965, monium chloride, alkali metal nitrate and alkaline earth 8 i i metal carbonate.
• the alkaline earth metals are exemplified by calcium, magnesium, barium or mixtures thereof. It is This invention relates to novel explosives.
• ticularly refers to novel explosives which are gelatinous or T e alkali metals are exemplified by sodium, potassium plastic and are safer than known explosives, and lithium with preference being given to the first tWO Explosives are known which, in addition to one or more named.
• the inorganic salt component ammonium hlorid or l i b t of the explosive of this invention should contain the above Upon the blasting of coal underground, gelatinou exnamed constituents in the following proportions: plosives must have a relatively high resistance to ignition Ammonium ChlOfideI alkali Hitratfi 1-211 and P by firedamp. Such explosives consist of a gelatinous phase ably 1.2-l.7: 1.
• the firedamp ignition standards according to German Test It is still another object of this invention to provide an Provisions for Class I-Explosives. explosive which is safer with respect to firedamp ignition.
• Table I gives some thermodynamic prop- Other and additional objects of this invention will beerties of various explosives for purposes of comparison.
• solid smoke components of (III) are, furthermore, twice as great as those of (I). It is thus shown that, for instance, the salt combination of the invention in accord-- ance with '(III) has a relatively high energy and at the same time a relatively large amount of solid smoke components.
• the tested explosive has the following composition in Weight percents:
• Nitroglycerine/nitroglycol 60/40 weight ratio 29% Gun cotton 1% Ca(NO (50% aqueous solution) 3% Salt mixture Remainder It is another particular attribute of this invention that it avoids the use of ammonium nitrate. This is quite desirable because the exact grinding and the preparation of the ammonium nitrate are difiicult to achieve due to the ease with which it takes up moisture and its low transformation point (32 C.).
• a ternary salt mixture having a particle size such that at least 30% and at most 95% pass through a screen of 0.1 mm. openings.
• the explosives in accordance with the invention can also contain known combustible substances (for instance, parafiin, sawdust) or else halogen-containing combustible substances (for instance, chloroparafiins, waxes having a base of chlorinated naphthalene),
• combustible substances for instance, parafiin, sawdust
• halogen-containing combustible substances for instance, chloroparafiins, waxes having a base of chlorinated naphthalene
• known inert materials for instance, sodium chloride, iron oxide, etc.
• known inert materials for instance, sodium chloride, iron oxide, etc.
• the advantages of the safety mining explosives of the invention reside in the fact that the deflagration safety with simultaneous increase in the energy is improved as compared with the previously known safety mining explosives of Class I.
• Ammonium chloride do 28.8 Calcium carbonate ..do 10.7
• Deflagration safety If a cartridge of this explosive is heated in a furnace to C. and if it is seen to by the use of a kieselguhr envelope that an accumulation of heat can take place in the cartridge, there takes place then in the explosive by the end of 21 hours only an increase in temperature of about 245 C. At this temperature, a methane/ air mixture will no longer be ignited.
• a plastic and gelatinous explosive composition comprising about 18 to 40 weight percent referred to the explosive of a gelatinous component formed of at least one liquid, possibly thickened nitric acid ester of a polyhydric alcohol and an inorganic salt component; the improvement which comprises utilizing as the inorganic salt component a ternary mixture consisting of ammonium chloride, alkali metal nitrate and alkaline earth metal carbonate.
• ammonium chloride bears a mole ratio to said alkali metal nitrate of about 1 to 2:1; said ammonium chloride bears a mole ratio to said alkaline earth metal carbonate of about 2 to 50:1; and said alkali metal nitrate bears a mole ratio to said alkaline earth metal'nitrate of about 3.
• ammonium chloride bears a mole ratio to said alkali metal nitrate of about 1.2 to 1.7:1; said ammonium chloride bears a mole ratio to said alkaline'earth metal carbonate of about 5 to 25:1; and said alkali metal nitrate bears a mole ratio to said alkaline earth metal nitrate of about 3 to 15:1.
• the improved explosive claimed in claim 1 containing, in addition to the named constituents, at least one oxygen liberating inorganic salt other than the aforementioned alkali metal nitrate and alkaline earth metal Detonation transfer lying free on sand cm carbonate and at least one other explosive combustible substance selected from the group consisting of paraflins, sawdust, chlorinated pa-rafi'lns and waxes having a base of chlorinated naphthalene.
• the improved explosive claimed in claim 4 containing, in addition to the named constituents, at least one combustible chlorine-containing substance selected from the group consisting of chlorinated paraflins and waxes having a base of chlorinated naphthalene.
• alkali metal is at least one selected from the group consisting of sodium, potassium and lithium.
• alkaline earth metal is at least one selected from the group consisting of calcium, magnesium, barium or mixtures thereof.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
• Medicinal Preparation (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7050930

Family Applications (1)

Country Status (5)

Citations (1)

• 1966
  • 1966-08-22 GB GB37602/66A patent/GB1137561A/en not_active Expired
  • 1966-09-01 US US576550A patent/US3356548A/en not_active Expired - Lifetime
  • 1966-09-06 BE BE686510D patent/BE686510A/xx unknown
  • 1966-09-06 NO NO164575A patent/NO115726B/no unknown
  • 1966-09-06 NL NL6612512A patent/NL6612512A/xx unknown

Patent Citations (1)

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