Macroemulsion for preparing high density explosive compositions
US4775431A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B47/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a water-in-oil macroemulsion for use in combination with a solid oxidizer in preparing a high density explosive composition. The macroemulsion comprises 1-70% by weight of water, 5-85% by weight of a fuel oil, and 0.1-10% by weight of an emulsifier with an HLB number within the range 0-8. The invention also provides an explosive composition comprising 2-20% by weight of a water-in-oil macroemulsion as just described and 80-98% by weight of a solid oxidizer. The preferred solid oxidizer is selected from the group of ammonium nitrate, sodium nitrate, potassium nitrate, calcium nitrate, ANFO, and mixtures thereof. In addition, water soluble fuels, oil soluble fuels, or solid fuels may be added to the erxplosive composition. The invention further provides a method of preparing a solid oxidizer based explosive having a higher density than that obtainable in a mixture of fuel oil and the solid oxidizers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.