US3558749A - Method for the production of the ammonium nitrate component of an nh4no3-containing explosive of high detonation speed - Google Patents
Method for the production of the ammonium nitrate component of an nh4no3-containing explosive of high detonation speed Download PDFInfo
- Publication number
- US3558749A US3558749A US742703A US3558749DA US3558749A US 3558749 A US3558749 A US 3558749A US 742703 A US742703 A US 742703A US 3558749D A US3558749D A US 3558749DA US 3558749 A US3558749 A US 3558749A
- Authority
- US
- United States
- Prior art keywords
- ammonium nitrate
- oil
- fraction
- explosive
- detonation speed
- 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.)
- Expired - Lifetime
Links
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 title abstract description 29
- 239000002360 explosive Substances 0.000 title abstract description 21
- 238000005474 detonation Methods 0.000 title abstract description 15
- 238000000034 method Methods 0.000 title description 8
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000002245 particle Substances 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 7
- 239000002283 diesel fuel Substances 0.000 abstract description 6
- 238000005470 impregnation Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
-
- 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
Definitions
- the invention relates to a method for the manufacture of the NH NO -containing component of an ammonium nitrate-containing explosive of high detonation speed.
- the fraction of the ground material having a particle size from 0.05 to 0.125 mm. is sieved out for the above purpose.
- This fraction Patented Jan. 26, 1971 is condensed by pressure, in any desired manner, into a mass having a porosity, expressed as the oil uptake without leaving a residue, of at least 10% by Weight, and the material is then comminuted into particles having a size of 0.5 to 2 mm. and impregnated with a liquid carbonaceous filler, for example, spindle oil or diesel oil.
- an ammonium nitrate-containing explosive of high detonation speed which comprises ammonium nitrate having an open porosity, as hereinbefore defined, of at least 10% by weight, impregnated with a nonexplosive, liquid carbonaceous filler in an amount which stoichiometrically corresponds to the desired oxygen balance in the explosive.
- the high open porosity of the ammonium nitrate produced in the manner described above is the prerequisite for achieving a detonation speed which is significantly increased relative to the normal standard, inasmuch as according to a further characteristic of the invention the sieved and comminuted compressed material is not completely impregnated with oil, i.e. until the open pore space is entirely filled, but rather it is only impregnated with such a quantity of a liquid, non-explosive carbonaceous filler, such as diesel oil or spindle oil as stoichiometrically corresponds to the desired oxygen balance of the explosive.
- a liquid, non-explosive carbonaceous filler such as diesel oil or spindle oil as stoichiometrically corresponds to the desired oxygen balance of the explosive.
- an amount of 5.5 to 6% by weight of the carbonaceous filler, e.g. oil suffices for this purpose.
- detonation speeds of at least 3000 m./ sec. are achieved, which can even be increased up to 3500 m./sec. In order to achieve this high detonation speed it is not necessary either to add absorptive substances or other explosives.
- the ammonium nitrate-oil explosive of high detonation speed of the invention is thus primarily characterized by consisting of ammonium nitrate of open porosity of approximately 10% by weight and above and only such quantity of a liquid, non-explosive, carbonaceous carrier, such as diesel oil or spindle oil as is necessary to set up the desired oxygen balance of the explosive, preferably 5.5 to 6% by weight.
- a liquid, non-explosive, carbonaceous carrier such as diesel oil or spindle oil as is necessary to set up the desired oxygen balance of the explosive, preferably 5.5 to 6% by weight.
- the high open porosity of the ammonium nitrate component which according to the invention is required for such an explosive is obtained from inadequately porous commercial forms of ammonium nitrate by grinding, compressing, comminution and sieving.
- a characteristic feature of the invention is the process for the manufacture of the ammonium nitrate component of the above-described explosive which comprises grinding, compressing and comminuting the starting ammonium nitrate, sieving from the resulting ground ammonium nitrate the fraction having a particle size from 0.05 to 0.125 mm., condensing this fraction into a mass having a porosity of at least 10% by weight, comminuting the said mass and sieving out from the comminuted material the fraction having a particle size from 0.5 to 2 mm.
- EXAMPLE 1 Dense ammonium nitrate prill containing 0.14% by weight of water and having an oil absorptive capacity which after immersing the prill in diesel oil and allowing it to drain for 6 hours proves to be 3.4% by weight, and
- EXAMPLE 2 Dense ammonium nitrate prills were ground as in EX- ample 1. The sieve fraction having a particle size from 0.05 to 0.125 mm. was fed into a roller press and compressed into sheets at such a high roller pressure as to result in an internal porosity (determined by oil absorp- I of this ammonium nitrate-oil mixture were introduced into a 3 m. long iron tube of 5 cm. internal diameter and 5 cm. wall thickness and detonated with a gelatine- Donarit cartridge. The detonation speeds measured at 20, and 280 cm. distance were 2,850, 3,350 and 3,400 m./sec., respectively.
- a method for the manufacture of the ammonium nitrate component of an ammonium nitrate and oil containing explosive of high detonation speed, said explosive containing 5.5 to 6% by weight of oil, from an inadequately porous commercial form of ammonium nitrate which comprises grinding the said commercial ammonium nitrate, sieving from the resulting ground ammonium nitrate the fraction having a particle size from 0.05 to 0.125 mm., compressing this fraction into a mass having a porosity of at least 10% by weight, comminuting the said porous mass and sieving out from the comminuted material the fraction having a particle size from 0.5 to 2 mm.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT92766A AT279448B (de) | 1966-02-02 | 1966-02-02 | Verfahren zur Herstellung eines Ammonnitrat-Öl-Sprengstoffes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3558749A true US3558749A (en) | 1971-01-26 |
Family
ID=3503044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US742703A Expired - Lifetime US3558749A (en) | 1966-02-02 | 1968-07-05 | Method for the production of the ammonium nitrate component of an nh4no3-containing explosive of high detonation speed |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3558749A (is") |
| AT (1) | AT279448B (is") |
| BE (1) | BE693452A (is") |
| ES (1) | ES336180A1 (is") |
| FI (1) | FI46372C (is") |
| FR (1) | FR1509800A (is") |
| NL (1) | NL6701617A (is") |
| NO (1) | NO116232B (is") |
| PL (1) | PL79091B1 (is") |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063975A (en) * | 1975-09-01 | 1977-12-20 | Nitro Nobel Ab | Colored composition of explosives |
-
1966
- 1966-02-02 AT AT92766A patent/AT279448B/de not_active IP Right Cessation
- 1966-12-30 FI FI663489A patent/FI46372C/fi active
-
1967
- 1967-01-20 PL PL1967118612A patent/PL79091B1/pl unknown
- 1967-01-20 NO NO166510A patent/NO116232B/no unknown
- 1967-01-28 ES ES0336180A patent/ES336180A1/es not_active Expired
- 1967-01-31 BE BE693452D patent/BE693452A/xx unknown
- 1967-02-01 FR FR93335A patent/FR1509800A/fr not_active Expired
- 1967-02-02 NL NL6701617A patent/NL6701617A/xx unknown
-
1968
- 1968-07-05 US US742703A patent/US3558749A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063975A (en) * | 1975-09-01 | 1977-12-20 | Nitro Nobel Ab | Colored composition of explosives |
Also Published As
| Publication number | Publication date |
|---|---|
| FI46372B (is") | 1972-11-30 |
| NO116232B (is") | 1969-02-17 |
| BE693452A (is") | 1967-07-31 |
| ES336180A1 (es) | 1967-12-16 |
| FR1509800A (fr) | 1968-01-12 |
| NL6701617A (is") | 1967-08-03 |
| AT279448B (de) | 1970-03-10 |
| FI46372C (fi) | 1974-07-26 |
| PL79091B1 (is") | 1975-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2230724C1 (ru) | Взрывчатая смесь | |
| RU2403234C2 (ru) | Гранула нитрата аммония и способ ее получения | |
| US3212944A (en) | Ammonium nitrate compositions containing hydratable metal salts and methods for producing the same | |
| US3279965A (en) | Ammonium nitrate explosive compositions | |
| CA2396328C (en) | Process for stabilizing ammonium nitrate | |
| IE34109B1 (en) | Blasting slurry compositions containing calcium nitrate | |
| US3540953A (en) | Blasting compositions containing ammonium nitrate prills,fuel,and a carbonaceous black | |
| US3121036A (en) | Explosive composition comprising ammonium nitrate and a heat-producing metal | |
| US3925122A (en) | Molded explosive bodies having variable detonation speeds | |
| RU2086524C1 (ru) | Взрывчатый состав и способ его изготовления | |
| US3558749A (en) | Method for the production of the ammonium nitrate component of an nh4no3-containing explosive of high detonation speed | |
| US2967153A (en) | Solid desiccant | |
| US2124201A (en) | Explosive composition and process of production | |
| US3740278A (en) | Halogenated polyethylene coated crystalline explosive mixed with second explosive | |
| US3619305A (en) | Explosive compositions containing expanded ammonium nitrate in crystalline form and method of preparing same | |
| US2356149A (en) | Blasting explosive composition and method | |
| US3823044A (en) | Increasing the detonation pressure of ammonium nitrate/fuel oil compositions | |
| US3260632A (en) | Ammonium nitrate explosive composition containing vermicular low density expanded graphite | |
| US3252843A (en) | Low detonation rate explosive compositions | |
| US3139029A (en) | Explosives and method of blasting | |
| RU2185354C1 (ru) | Взрывчатая смесь | |
| US3166450A (en) | Ammonium nitrate-chromate salt explosive compositions | |
| US3664897A (en) | Slurry explosive comprising ammonium nitrate and aluminum powder | |
| US3012868A (en) | Enhanced organic explosives | |
| US3266960A (en) | Ammonium nitrate compositions containing hydratable metal salts and liquid hydrocarbons |