Imperial Chemical Industries Limited

Ici Canada, Inc.

Ici Chemical Industries Plc

Raymond Oliver

Fortunato Villamagna

Sek Kwan Chan

Ian John Kirby

Frank A Kirk

Leslie J Ford

Lynn W Lipscombe

Jeremy G Smit

Robert J Munro

Alejandro M Antonini

Jeremy G Smith

Anthony R Fairclough

Ronald O Peddie

Aida Kaldas

Nicholas W Anderton

Production of particulate materials

Precipitation of fine azide core particles with in-situ coating with suspended tiny oxide particles, followed by concentration of the dilute suspension of these bodies to form a slurry with residual dissolved azide in the liquor, and finally converting the slurry in to solid aggregates of the pyrotechnic bodies by e.g. prilling whereby liquid phase evaporation releases dissolved azide causing the pyrotechnic bodies to be adhered together in to larger aggregates.

Method of producing pyrotechnic masses

A process for the production of explosives grade ammonium nitrate prill (EGAN) comprises the steps of

Granulated ammonium nitrate products

Explosive grade ammonium nitrate (EGAN) prills are made by a process comprising the steps of:

Prill process

A method for producing an emulsion explosive comprises introducing a liquid organic fuel phase and an immiscible liquid oxidizer phase into apparatus having a mixer chamber, flow constrictor means for introducing the liquid oxidizer phase as an emergent turbulent jet into the chamber to cause its fragmentation into droplets in situ within the chamber, means for introducing the fuel phase into the chamber so that the fuel phase introduced thereby contacts and becomes distributed around the droplets of oxidizer phase as they form to produce emulsion and further providing shear mixing means within the mixing chamber to effect enhancement of the mixing of the chamber contents and thereby to continuously incorporate the fuel phase to produce a more refined emulsion suitable for use as the basis for an explosive system, particularly emulsions of high velocity.

Emulsification method

Apparatus for producing a multi-phase emulsion explosive from a liquid organic fuel medium and an immiscible liquid oxidizer comprises a mixing chamber, flow constrictor means for introducing the liquid oxidizer as an emergent turbulent jet to said chamber and causing formation of droplets of said oxidizer in situ within the chamber, means for introducing the fuel medium to said chamber so that the fuel introduced thereby contacts and stabilizes the droplets of oxidizer solution as they are formed to maintain same as discrete droplets of oxidizer liquid and thereby provide an emulsion suitable for use as the basis for an explosive system.

Explosive emulsification method

A process (and apparatus therefor) for carrying out thermally-initiated chemical reactions or physical changes by heating a particulate substrate in a fluidized bed having hotter zone(s) and cooler zone(s) between which the fluidized particles circulate, the dwell time in the hotter zone(s) being sufficiently short so as to prevent the particles undergoing an undesirable thermal transformation before the particles move into the cooler zone(s). The fluidized bed is applicable, for example, to a process for the polymerization of a low molecular weight poly(ethylene terephthalate).

Modified fluidized bed

Growing community of inventors

Cleveland, United Kingdom

Raymond Oliver