C-i-l, Inc.

Ming C Lee

Rejean Binet

Howard A Bampfield

Anthony C Edmonds

Roland Picard

Chang-Hwa Chin

William J Yorke

A process and apparatus is provided for the continuous manufacture of a water-in-oil explosive emulsion precursor. Separate streams of the water phase component and the oil phase component are introduced into an in-line motionless mixer. A chosen portion of the output from the mixer is recirculated and returned to the motionless mixer for further emulsification. The process allows for the production of a very high phase ratio water-to-oil emulsion (up to 95% water phase) without phase inversion after long storage. The precursor is simply converted to a sensitive explosive by means of known density lowering techniques.

Continuous method and apparatus for the preparation of explosives

A water-in-oil emulsion explosive composition is provided wherein the continuous carbonaceous oil or fuel phase comprises an unrefined or partly refined petroleum product, for example, slackwax. The resulting explosive composition exhibits properties of strength, detonation velocity and stability comparable and in some cases superior to similar compositions containing refined petroleum fuels.

Water-in-oil emulsion blasting agents containing unrefined or partly

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Longueuil, Canada

Ming C Lee