CA2301552A1 - Explosives gasser composition and method - Google Patents
Explosives gasser composition and method Download PDFInfo
- Publication number
- CA2301552A1 CA2301552A1 CA002301552A CA2301552A CA2301552A1 CA 2301552 A1 CA2301552 A1 CA 2301552A1 CA 002301552 A CA002301552 A CA 002301552A CA 2301552 A CA2301552 A CA 2301552A CA 2301552 A1 CA2301552 A1 CA 2301552A1
- Authority
- CA
- Canada
- Prior art keywords
- gassing
- explosive composition
- composition
- composition according
- explosive
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract 135
- 239000002360 explosive Substances 0.000 title claims abstract 83
- 229910052751 metal Inorganic materials 0.000 claims abstract 25
- 239000002184 metal Substances 0.000 claims abstract 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract 22
- 150000003839 salts Chemical class 0.000 claims abstract 19
- 150000001768 cations Chemical class 0.000 claims abstract 13
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims 14
- 229910001424 calcium ion Inorganic materials 0.000 claims 14
- 150000001450 anions Chemical class 0.000 claims 12
- 229910001427 strontium ion Inorganic materials 0.000 claims 8
- PWYYWQHXAPXYMF-UHFFFAOYSA-N strontium(2+) Chemical compound [Sr+2] PWYYWQHXAPXYMF-UHFFFAOYSA-N 0.000 claims 8
- 239000007762 w/o emulsion Substances 0.000 claims 7
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims 6
- 229910002651 NO3 Inorganic materials 0.000 claims 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 6
- 239000002253 acid Substances 0.000 claims 6
- 150000002500 ions Chemical class 0.000 claims 6
- 229910001425 magnesium ion Inorganic materials 0.000 claims 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical group [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims 6
- 150000003567 thiocyanates Chemical class 0.000 claims 6
- 239000000839 emulsion Substances 0.000 claims 5
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims 4
- 239000012071 phase Substances 0.000 claims 4
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims 4
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims 4
- 229910019142 PO4 Inorganic materials 0.000 claims 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 3
- 229910052768 actinide Inorganic materials 0.000 claims 3
- 150000001255 actinides Chemical class 0.000 claims 3
- 239000008346 aqueous phase Substances 0.000 claims 3
- 229910001422 barium ion Inorganic materials 0.000 claims 3
- 229910001423 beryllium ion Inorganic materials 0.000 claims 3
- 239000003995 emulsifying agent Substances 0.000 claims 3
- 150000004820 halides Chemical class 0.000 claims 3
- 229910052747 lanthanoid Inorganic materials 0.000 claims 3
- 150000002602 lanthanoids Chemical class 0.000 claims 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite group Chemical group N(=O)[O-] IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 3
- 239000010452 phosphate Substances 0.000 claims 3
- 235000010288 sodium nitrite Nutrition 0.000 claims 3
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical group [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 claims 3
- 239000000243 solution Substances 0.000 claims 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims 3
- 229910052723 transition metal Inorganic materials 0.000 claims 3
- 150000003624 transition metals Chemical class 0.000 claims 3
- ALWXETURCOIGIZ-UHFFFAOYSA-N 1-nitropropylbenzene Chemical compound CCC([N+]([O-])=O)C1=CC=CC=C1 ALWXETURCOIGIZ-UHFFFAOYSA-N 0.000 claims 2
- 150000008064 anhydrides Chemical class 0.000 claims 2
- 150000002826 nitrites Chemical class 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 229920005862 polyol Polymers 0.000 claims 2
- 150000003077 polyols Chemical class 0.000 claims 2
- HOWFTCIROIVKLW-UHFFFAOYSA-L strontium;dinitrite Chemical compound [Sr+2].[O-]N=O.[O-]N=O HOWFTCIROIVKLW-UHFFFAOYSA-L 0.000 claims 2
- YNQRWDDCTKWYJP-UHFFFAOYSA-L strontium;dithiocyanate Chemical compound [Sr+2].[S-]C#N.[S-]C#N YNQRWDDCTKWYJP-UHFFFAOYSA-L 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 2
- 229920002554 vinyl polymer Polymers 0.000 claims 2
- 239000003623 enhancer Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 239000007800 oxidant agent Substances 0.000 claims 1
- 239000012266 salt solution Substances 0.000 claims 1
- 230000001235 sensitizing effect Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Lubricants (AREA)
Abstract
A gassing composition for gassing explosive compositions wherein, the gassing composition comprises a gassing agent and a metal salt having a divalent cation.
Claims (63)
1. A gassing composition for gassing explosive compositions wherein, the gassing composition comprises a gassing agent and a metal salt having a divalent cation.
2. A gassing composition according to claim 1 wherein the cation is selected from the group consisting of any divalent cation of a main group metal, transition metal, lanthanide or actinide.
3. A gassing composition according to claim 1 wherein the divalent may be selected from the group consisting of Be2+, Mg2+, Ca2+,Si2+, Ba2+, Ti2+, Zr2+, Hf2+, V2+, Cr2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Ag2+, Hg2+, Cd2+, Al2+, Sn2+, Pb2+.
4. A gassing composition according to claim 1 wherein divalent metal cation is selected from the group consisting of Mg2+ and Ca2+.
5. A gassing composition according to any one of claims 1 to 4 wherein the anion, or anions, of the metal salt are selected from the group consisting of halide, nitrate, sulphate, phosphate, chlorate, perchlorate and combinations thereof.
6. A gassing composition according to claim 5 wherein the anion, or anions, of the metal salt is nitrate.
7. A gassing composition according to any one of claims 1 to 6 wherein the gassing agent is a nitrite salt.
8. A gassing composition according to claim 7 wherein the gassing agent is a sodium nitrite.
9. A gassing composition according to any one of claims 1 to 8 wherein the gassing agent and the metal salt are in the form of a solution.
10. A gassing composition according to any one of claims 1 to 9 wherein said gassing composition comprises gassing agent between 0.5 wt% and 45 wt% of the gassing composition and divalent metal salt between 1 wt% and 45 wt% of the gassing composition.
11. A gassing composition according to claim 10 wherein said gassing composition comprises between 0.5 wt% and 25 wt% gassing agent and between 10 wt% and 40 wt% divalent metal salt.
12. A gassing composition according to claim 11 wherein said gassing composition comprises between 0.5 wt% and 20 wt% gassing agent and between 20 wt% and 40 wt% divalent metal salt.
13. A gassing composition according to any one of claims 1 to 12 wherein the explosive composition is a water-in-oil emulsion explosive.
14. A gassing composition according to any one of claims 1 to 13 further comprising a thiocyanate salt.
15. A gassing composition according to claim 14 wherein the thiocyanate salt is sodium thiocyanate.
16. A gassing composition according to any one of claims 1 to 15 when used to gas an explosive composition wherein at least part of said explosive compositions has an acid pH of at least 4.2.
17. A gassing composition according to any one of claims 1 to 15 when used to gas a water-in-oil emulsion wherein the water-in-oil emulsion comprises an aqueous phase having an acid pH of at least 4.2.
18. A method for gassing an explosive composition comprising the steps of:
i) forming a gassing composition comprising a gassing agent and a metal salt having a divalent cation; and ii) dispersing the gassing composition into the explosive composition.
i) forming a gassing composition comprising a gassing agent and a metal salt having a divalent cation; and ii) dispersing the gassing composition into the explosive composition.
19. A method for gassing an explosive composition according to claim 18 wherein the cation is selected from the group consisting of any divalent cation of a main group metal, transition metal, lanthanide or actinide.
20. A method for gassing an explosive composition according to claim 18 wherein the divalent may be selected from the group consisting of Be2+, Mg2+, Ca2+,Sr2+, Ba2+, Ti2+, Zr2+, Hf2+, V2+, Cr2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Ag2+, Hg2+, Cd2+, Al2+, Sn2+, Pb2+.
21. A method for gassing an explosive composition according to claim 18 wherein divalent metal cation is selected from the group consisting of Mg2+ and Ca2+.
22. A method for gassing an explosive composition according to any one of claims 18 to 21 wherein the anion, or anions, of the metal salt are selected from the group consisting of halide, nitrate, sulphate, phosphate, chlorate, perchlorate and combinations thereof.
23. A method for gassing an explosive composition according to claim 22 wherein the anion, or anions, of the metal salt is nitrate.
24. A method for gassing an explosive composition according to any one of claims 18 to 23 wherein the gassing agent is a nitrite salt.
25. A method for gassing an explosive composition according to claim 24 wherein the gassing agent is a sodium nitrite.
26. A method for gassing an explosive composition according to any one of claims 18 to 25 wherein the gassing agent and the metal salt are in the form of a solution.
27. A method of gassing an explosive composition according to any one of claims 1 to 26 wherein the gassing composition is dispersed into the explosive composition by the use of static mixers whilst the explosive composition is being pumped.
28. A method of gassing an explosive composition according to claim 27 wherein the explosive composition is a water-in-oil emulsion explosive.
29. A method for gassing an explosive composition according to any one of claims 18 to 28 wherein the gassing composition further comprises a thiocyanate salt.
30. A method for gassing an explosive composition according to claim 29 wherein the thiocyanate salt is sodium thiocyanate.
31. A method for gassing an explosive composition according to any one of claims 1 to 30 wherein at least part of said explosive composition has an acid pH of at least 4.2.
32. A method for gassing an explosive composition according to any one of claims 1 to 30 wherein the explosive composition is a water-in-oil emulsion, which emulsion comprises an aqueous phase having an acid pH of at least 4.2.
33. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition wherein the gassing composition comprises a gassing agent and a metal salt having a divalent cation.
34. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 33 wherein the cation is selected from the group consisting of any divalent cation of a main group metal, transition metal, lanthanide or actinide.
35. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 33 wherein the divalent may be selected from the group consisting of Be2+, Mg2+, Ca2+,Sr2+, Ba2+, Ti2+, Zr2+, Hf2+, V2+, Cr2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Ag2+~ Hg2+, Cd2+, Al2+, Sn2+, Pb2+.
36. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 33 wherein divalent metal cation is selected from the group consisting of Mg2+
and Ca2+.
and Ca2+.
37. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to any one of claims 33 to 36 wherein the anion, or anions, of the metal salt are selected from the group consisting of halide, nitrate, sulphate, phosphate, chlorate, perchlorate and combinations thereof.
38. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 37 wherein the anion, or anions, of the metal salt is nitrate.
39. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to any one of claims 33 to 38 wherein the gassing agent is a nitrite salt.
40. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 39 wherein the gassing agent is a sodium nitrite.
41. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to any one of claims 33 to 40 wherein the gassing agent and the metal salt are in the form of a solution.
42. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to any one of claims 33 to 41 wherein said gassing composition comprises gassing agent between 0.5 wt% and 45 wt% of the gassing composition and divalent metal salt between wt% and 45 wt% of the gassing composition.
43. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 42 wherein said gassing composition comprises between 0.5 wt% and 25 wt%
gassing agent and between 10 wt% and 40 wt% divalent metal salt.
gassing agent and between 10 wt% and 40 wt% divalent metal salt.
44. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to claim 43 wherein said gassing composition comprises between 0.5 wt% and 20 wt%
gassing agent and between 20 wt% and 40 wt% divalent metal salt.
gassing agent and between 20 wt% and 40 wt% divalent metal salt.
45. A gassed explosive composition comprising an explosive composition gassed by dispersing a gassing composition into said explosive composition according to any one of claims 33 to 44 wherein the explosive composition is a water-in-oil emulsion explosive.
46. A gassed explosive composition according to any one of claims 33 to 45 wherein the gassing composition further comprises a thiocyanate salt.
47. A gassed explosive composition according to claim 46 wherein the thiocyanate salt is sodium thiocyanate.
48. A gassed explosive composition according to any one of claims 33 to 47 wherein at least part of said explosive composition has an acid pH of at least 4.2 prior to gassing.
49. A gassed explosive composition according to any one of claims 33 to 47 wherein the water-in-oil emulsion comprises an aqueous phase having an acid pH of at least 4.2.
50. An emulsion explosive composition comprising an organic fuel as a continuous phase;
an inorganic oxidizer salt solution or melt as a discontinuous phase; an emulsifier; and gas bubbles formed from a chemical gassing agent that comprises a nitrite salt and an ion selected from the group consisting of calcium ion, strontium ion and mixtures thereof as a gassing enhancer.
an inorganic oxidizer salt solution or melt as a discontinuous phase; an emulsifier; and gas bubbles formed from a chemical gassing agent that comprises a nitrite salt and an ion selected from the group consisting of calcium ion, strontium ion and mixtures thereof as a gassing enhancer.
51. An explosive composition according to claim 1 wherein the ion is calcium ion.
52. An explosive composition according to claim 1 wherein the ion is strontium ion.
53. An explosive composition according to any one of claims 50 to 52 wherein the emulsifier is an alkanolamine or polyol derivative of a carboxylated or anhydride derivatized olefinic or vinyl addition polymer.
54. An explosive composition according to either claim 51 or 53 wherein the calcium ion is selected from the group consisting of calcium nitrite, calcium nitrate, calcium thiocyanate and mixtures thereof.
55. An explosive composition according to either claim 52 or 53 wherein the strontium ion is selected from the group consisting of strontium nitrite, strontium nitrate, strontium thiocyanate and mixtures thereof.
56. An explosive composition according to claim 54 wherein the calcium ion is from calcium nitrite.
57. A method for gassing an emulsion explosive composition comprising adding to a preformed emulsion phase a chemical gassing agent containing a nitrite salt and an ion selected from the group consisting of calcium ion, strontium ion and mixtures thereof and mixing the gassing agent uniformly throughout the emulsion phase to produce sensitizing gas bubbles.
58. A method according to claim 57 wherein the ion is calcium ion.
59. A method according to claim 57 wherein the ion is strontium ion.
60. A method according to any one of claims 57 to 59 wherein the emulsifier is an alkanolamine or polyol derivative of a carboxylated or anhydride derivatized olefinic or vinyl addition polymer.
61. A method according to either claim 58 or 60 wherein the calcium ion is selected from the group consisting of calcium nitrite, calcium nitrate, calcium thiocyanate and mixtures thereof.
62. A method according to either claim 59 or 60 wherein the strontium ion is selected from the group consisting of strontium nitrite, strontium nitrate, strontium thiocyanate and mixtures thereof.
63. A method according to claim 61 wherein the calcium ion is from calcium nitrite.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPO8721 | 1997-08-22 | ||
| AUPO8721A AUPO872197A0 (en) | 1997-08-22 | 1997-08-22 | Explosives gasser composition and method |
| PCT/AU1998/000670 WO1999010299A1 (en) | 1997-08-22 | 1998-08-21 | Explosives gasser composition and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2301552A1 true CA2301552A1 (en) | 1999-03-04 |
| CA2301552C CA2301552C (en) | 2012-02-28 |
Family
ID=3803007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2301552A Expired - Lifetime CA2301552C (en) | 1997-08-22 | 1998-08-21 | Explosives gasser composition and method |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN1271336A (en) |
| AU (1) | AUPO872197A0 (en) |
| BR (1) | BR9811346A (en) |
| CA (1) | CA2301552C (en) |
| WO (1) | WO1999010299A1 (en) |
| ZA (1) | ZA987559B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6022428A (en) * | 1998-02-10 | 2000-02-08 | Dyno Nobel Inc. | Gassed emulsion explosive |
| US6515063B2 (en) | 2001-02-01 | 2003-02-04 | The Goodyear Tire & Rubber Company | Tire having colored tread |
| CN108911934A (en) * | 2018-08-13 | 2018-11-30 | 福建省民爆化工股份有限公司 | Foaming agent for emulsion explosive and the emulsion for using the foaming agent |
| CN108997070A (en) * | 2018-08-13 | 2018-12-14 | 福建省民爆化工股份有限公司 | A kind of Quick Foaming of Emulsion Explosives agent and emulsion |
| RU2748152C2 (en) * | 2019-07-18 | 2021-05-19 | Общество с ограниченной ответственностью "СпецРешения" | Emulsion explosive composition and method for production thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002881A1 (en) * | 1987-09-30 | 1989-04-06 | Mining Services International Corporation | Methods and compositions related to emulsified gassing agents for sensitizing explosive compositions |
| AUPN737295A0 (en) * | 1995-12-29 | 1996-01-25 | Ici Australia Operations Proprietary Limited | Gasser composition & method of gassing |
| AUPN737395A0 (en) * | 1995-12-29 | 1996-01-25 | Ici Australia Operations Proprietary Limited | Process and apparatus for the manufacture of emulsion explosive compositions |
-
1997
- 1997-08-22 AU AUPO8721A patent/AUPO872197A0/en not_active Abandoned
-
1998
- 1998-08-20 ZA ZA987559A patent/ZA987559B/en unknown
- 1998-08-21 CN CN98809555A patent/CN1271336A/en active Pending
- 1998-08-21 BR BR9811346-1A patent/BR9811346A/en not_active Application Discontinuation
- 1998-08-21 WO PCT/AU1998/000670 patent/WO1999010299A1/en active IP Right Grant
- 1998-08-21 CA CA2301552A patent/CA2301552C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ZA987559B (en) | 1999-02-23 |
| BR9811346A (en) | 2000-09-12 |
| CN1271336A (en) | 2000-10-25 |
| CA2301552C (en) | 2012-02-28 |
| AUPO872197A0 (en) | 1997-09-18 |
| WO1999010299A1 (en) | 1999-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20180821 |