US2711366A - Blasting explosives - Google Patents
Blasting explosives Download PDFInfo
- Publication number
- US2711366A US2711366A US286212A US28621252A US2711366A US 2711366 A US2711366 A US 2711366A US 286212 A US286212 A US 286212A US 28621252 A US28621252 A US 28621252A US 2711366 A US2711366 A US 2711366A
- Authority
- US
- United States
- Prior art keywords
- weight
- parts
- gelatine
- explosive
- compositions
- 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
- 239000002360 explosive Substances 0.000 title claims description 33
- 238000005422 blasting Methods 0.000 title claims description 17
- 239000000203 mixture Substances 0.000 claims description 42
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 38
- 239000001828 Gelatine Substances 0.000 claims description 29
- 229920000159 gelatin Polymers 0.000 claims description 29
- 235000019322 gelatine Nutrition 0.000 claims description 18
- 235000011132 calcium sulphate Nutrition 0.000 claims description 17
- 239000001175 calcium sulphate Substances 0.000 claims description 17
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 11
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 claims description 8
- 229960003711 glyceryl trinitrate Drugs 0.000 claims description 8
- 239000000020 Nitrocellulose Substances 0.000 claims description 7
- UQXKXGWGFRWILX-UHFFFAOYSA-N ethylene glycol dinitrate Chemical compound O=N(=O)OCCON(=O)=O UQXKXGWGFRWILX-UHFFFAOYSA-N 0.000 claims description 7
- 229920001220 nitrocellulos Polymers 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 14
- 239000004202 carbamide Substances 0.000 description 14
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 6
- 235000010344 sodium nitrate Nutrition 0.000 description 6
- 239000004317 sodium nitrate Substances 0.000 description 6
- PLAZTCDQAHEYBI-UHFFFAOYSA-N 2-nitrotoluene Chemical compound CC1=CC=CC=C1[N+]([O-])=O PLAZTCDQAHEYBI-UHFFFAOYSA-N 0.000 description 4
- 229910052925 anhydrite Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 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
- C06B31/32—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
-
- 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
- C06B23/02—Compositions characterised by non-explosive or non-thermic constituents for neutralising poisonous gases from explosives produced during blasting
Definitions
- urea can also be included in such amounts that 100 parts by weight of the resulting explosive contain from 0.5 to 5 parts by weight thereof.
- the proc- -eSs for the production of high power gelatine or semigelatine blasting compositions containing a high proportion of ammonium nitrate comprises incorporating such a quantity of calcium sulphate that 100 parts by weight of the resulting explosive composition contain not more than 5 parts by weight thereof.
- such a quantity of urea can also be incorporated that 100 parts by weight of the explosive composition contain from 0.5 to 5 parts by weight thereof.
- High power gelatine or semi-gelatine blasting explosive compositions containing a high proportion of ammonium nitrate according to the invention are characterised in that they include not more than 5 parts by weight of calcium sulphate with or without from 0.5 to 5 parts 2,711,366 Patented June 21, 1955 by weight of urea per 100 parts by weight of explosive composition.
- 100 parts by weight of the explosive composition contain in the absence of urea 4 parts by weight calcium sulphate.
- a pre'e ferred explosive composition according to the invention which includes urea is one wherein 100 parts by weight of the explosive composition include 2 parts by weight of urea and 2 parts by weight of calcium sulphate.
- compositions according to the invention are illustrated by the following examples in which all parts are parts by weight.
- Example 1 Parts :20 mixture of nitroglycerine and ethylene glycol dinitrate 25.5 Nitrocellulose 0.9 Orthonitrotoluol 4.0 Woodmeal 2.5 Ammonium nitrate 62.8 Calcium'sulphate(anhydrite) t 4.0
- the weight strength of the gelatine composition is 85.0 per cent of blasting gelatine.
- Example 2 Parts 80:20 mixture of nitroglycerine and ethylene glycol dinitrate 25.5 Nitrocellulose 0.9 Orthonitrotoluol 4.0 Woodmeal 2.5 Ammonium nitrate 62.8 Calcium sulphate (anhydrite) 2.0 Urea 2.0
- the weight strength of the gelatine composition is 85.0 per cent of blasting gelatine.
- Example 3 Parts 80:20 mixture of nitroglycerine and ethylene glycol dinitrate 25.5 Nitrocellulose 0.9 Orthonitrotoluol 4.0 Woodmeal 3.0 Ammonium nitrate 50.3 Sodium nitrate 12.0 Chalk 0.3 Urea 2.0 Calcium sulphate (anhydrite) 2.0
- the weight strength of the gelatine composition is 78 per cent of blasting gelatine.
- Example 4 Parts 80:20 mixture of nitroglycerine and ethylene glycol dinitrate 15.0 Nitrocellulose 0.3 Woodmeal 3.4 Ammonium nitrate 73.0 Aluminum 4.0 Chalk 0.3
- the weight strength of the semi-gelatine composition is 82.9 per cent of blasting gelatine.
- a further advantage of the invention over the use of sulphur is that the use of sulphur necessitates the inclusion of at least 6 times its weight of sodium nitrate in order to prevent release of oxides of sulphur in the explosion gases whereas using calcium sulphate with or without urea as in the present invention it is unnecessary to include sodium nitrate, thus permitting the inclusion of an increased amount of ammonium nitrate into the explosive compositions to produce compositions of increased explosive power.
- High power gelatine and semi-gelatine blasting explosive compositions comprising nitrocellulose, at least 50% by weight of ammonium nitrate, at least 15% by weight of a liquid explosive nitric ester selected from the group consisting of nitroglycerine and ethylene glycol dinitrate, and 0.5% to 5% by weight of calcium sulphate.
- High power gelatine and semi-gelatine blasting explosive compositions consisting essentially of nitrocellulose, at least 50% by weight of ammonium nitrate, at least 15% by weight of a liquid explosive nitric ester selected from the group consisting of nitroglycerine and ethylene glycol dinitrate, and 0.5% to 5% by weight of calcium sulphate.
- High power gelatine and semi-gelatine blasting explosive compositions as claimed in claim 7 which include 2 parts by weight of urea and 2 parts by weight of calcium sulphate per 100 parts by weight of explosive composition.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicinal Preparation (AREA)
- Air Bags (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15736/51A GB700028A (en) | 1951-07-03 | 1951-07-03 | Improvements in or relating to blasting explosives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2711366A true US2711366A (en) | 1955-06-21 |
Family
ID=10064568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US286212A Expired - Lifetime US2711366A (en) | 1951-07-03 | 1952-05-05 | Blasting explosives |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2711366A (enrdf_load_stackoverflow) |
| BE (1) | BE512537A (enrdf_load_stackoverflow) |
| DE (1) | DE922816C (enrdf_load_stackoverflow) |
| FR (1) | FR1057358A (enrdf_load_stackoverflow) |
| GB (1) | GB700028A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2817581A (en) * | 1955-05-18 | 1957-12-24 | Trojan Powder Co | Cast ammonium nitrate and urea explosive |
| US3032972A (en) * | 1956-12-21 | 1962-05-08 | Hercules Powder Co Ltd | Propellants |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1464667A (en) * | 1923-08-14 | Walter | ||
| US2231044A (en) * | 1940-03-16 | 1941-02-11 | Du Pont | Blasting explosive composition |
| US2455205A (en) * | 1945-08-24 | 1948-11-30 | Ici Ltd | Compositions suitable for use as gas and power producing liquids |
-
0
- BE BE512537D patent/BE512537A/xx unknown
-
1951
- 1951-07-03 GB GB15736/51A patent/GB700028A/en not_active Expired
-
1952
- 1952-05-05 US US286212A patent/US2711366A/en not_active Expired - Lifetime
- 1952-05-26 FR FR1057358D patent/FR1057358A/fr not_active Expired
- 1952-05-30 DE DEI5921A patent/DE922816C/de not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1464667A (en) * | 1923-08-14 | Walter | ||
| US2231044A (en) * | 1940-03-16 | 1941-02-11 | Du Pont | Blasting explosive composition |
| US2455205A (en) * | 1945-08-24 | 1948-11-30 | Ici Ltd | Compositions suitable for use as gas and power producing liquids |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2817581A (en) * | 1955-05-18 | 1957-12-24 | Trojan Powder Co | Cast ammonium nitrate and urea explosive |
| US3032972A (en) * | 1956-12-21 | 1962-05-08 | Hercules Powder Co Ltd | Propellants |
Also Published As
| Publication number | Publication date |
|---|---|
| BE512537A (enrdf_load_stackoverflow) | |
| GB700028A (en) | 1953-11-25 |
| FR1057358A (fr) | 1954-03-08 |
| DE922816C (de) | 1955-01-27 |
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