EP 0252625 A3 19890628 - PROCESS FOR THE PRODUCTION OF AN EXPLOSIVE
Title (en)
PROCESS FOR THE PRODUCTION OF AN EXPLOSIVE
Publication
Application
Priority
- ZA 865028 A 19860707
- ZA 865029 A 19860707
- ZA 868410 A 19861104
Abstract (en)
[origin: EP0252625A2] In a process for the production of a 'water-in-fuel' or 'melt-in-fuel' emulsion explosive a density-reducing agent is introduced and dispersed in the emulsion at an elevated temperature whereat the emulsion is essentially liquid, the explosive is cartridged and then subsequently cooled by means of a refrigerated fluid so that the continuous phase solidifies and stabilises the dispersion of the density-reducing agent in the explosive. Preferably, when the density-reducing agent comprises gas bubbles the explosive is subjected to an elevated pressure before it is cartridged in order to ensure that the sensitivity of the explosive will not be impaired by disturbance of gas bubbles by any pressure drop which might occur during cartridging. The invention also extends to a cartridging machine for cartridging emulsion explosive, the machine comprising a container defining a sealed pressurizable explosives chamber which has an explosives inlet and at least one explosives outlet provided with a positive displacement pump for pumping explosive from the chamber into a cartridge.
IPC 1-7
IPC 8 full level
C06B 21/00 (2006.01); C06B 45/00 (2006.01); C06B 47/14 (2006.01)
CPC (source: EP)
C06B 21/005 (2013.01); C06B 45/00 (2013.01); C06B 47/145 (2013.01)
Citation (search report)
- [A] US 4008108 A 19770215 - CHRISP JOSEPH DEAN
- [A] WO 8603483 A1 19860619 - ICI AUSTRALIA LTD [AU]
- [A] US 3642547 A 19720215 - CONRAD KEITH L
- [Y] EP 0168958 A1 19860122 - NIPPON OILS & FATS CO LTD [JP]
- [A] GB 1447433 A 19760825 - ICI AMERICA INC
- [A] US 3646844 A 19720307 - CLAY ROBERT B
- [Y] DE 921018 C 19541206 - DYNAMIT NOBEL AG, et al
Designated contracting state (EPC)
AT BE CH DE ES FR IT LI NL SE
DOCDB simple family (publication)
EP 0252625 A2 19880113; EP 0252625 A3 19890628; AU 595339 B2 19900329; AU 7522987 A 19880121; GB 2192391 A 19880113; GB 2192391 B 19891220; GB 8713943 D0 19870722; IL 82976 A0 19871220; MY 103556 A 19930828; NO 872560 D0 19870618; NO 872560 L 19880108; NZ 220959 A 19900528; PH 24570 A 19900803; PH 25522 A 19910724; PT 85262 A 19880729
DOCDB simple family (application)
EP 87305298 A 19870615; AU 7522987 A 19870703; GB 8713943 A 19870615; IL 8297687 A 19870624; MY PI19873128 A 19870629; NO 872560 A 19870618; NZ 22095987 A 19870706; PH 35429 A 19870619; PH 38583 A 19890428; PT 8526287 A 19870706