Zinc oxide inhibited emulsion explosives and method
US6125761A · kind A · utility
17Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Aug 7, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of blasting in reactive ores includes diluting hot liquor of ammonium nitrate with water to provide diluted ammonium nitrate solution of predetermined concentration, adjusting the pH of the liquor of the ammonium nitrate solution, adding a predetermined amount of gassing agent to the ammonium nitrate solution, and emulsifying the ammonium nitrate solution. Then an effective amount of fine zinc oxide powder is mixed with the emulsion explosive and the inhibited emulsion explosive is introduced into a borehole and detonated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.