Separation of Fragmented Energetic Materials via Directed Ultrasonic Energy

Demilitarization of unserviceable ammunition by open burning and open detonation is no longer an option. Autoclaving of low melting point materials is labor intensive, hazardous to the health of operators, and generates pinkwater which requires clean-up as hazardous waste. Other explosives such as insensitive munitions composed of polymer bonded explosives present a particularly difficult challenge for demil. They cannot be removed from the munition by autoclave techniques. TPL will demonstrate that directed ultrasonic energy can be used to fragment, remove, and separate cast-loaded energetic materials from obsolete munitions. Fragmentation of Comp B and Octol with ultrasonic energy has been demonstrated. Material removed by fragmentation will be used to develop processes and methods to recover the valuable explosive components. Methods to remove binders, waxes, plasticizers, crosslinkers, and catalysts will be determined. The most effective systems will be developed that minimize hazardous wastes and operation hazards. Process flow sheets and material balances will be developed. TPL has a highly integrated capability in the demilitarization of conventional munitions, from the conduct of research and development into uses for reclaimed energetic materials, to providing engineering services in conventional munitions demilitarization operations, and to the manufacture of commercial products from reclaimed energetic materials.