Process for spheroidization of RDX crystals

Details Process for spheroidization of RDX crystals Process for spheroidization of RDX crystals

1976-01-05

1977-12-27

Miller, Edward A.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

Rolling to form sheet or rod

264 3E, 149 199, 149 92, C06B 2100

Patent

active

040655296

ABSTRACT:
A technique for the spheroidization of angular RDX crystals. The technique onsists of agitating such angular RDX crystals in a cyclohexanone medium saturated with RDX, during which time the temperature is raised to and then maintained at a predetermined level. When the desired degree of spheroidization obtained by partial dissolution and erosion is reached, the suspension is discharged to the centrifuge and washed. The process is carried out entirely in liquid media, which minimizes explosion hazards. It gives a high degree of spheroidization when crystals larger than about 70 microns are used. The use of such spheroidized RDX crystals increases the mix fluidity of composite explosives, thereby permitting the production of explosives having very high solid loadings in liquid binder or molten form.

REFERENCES:
patent: 3239502 (1966-03-01), Lee et al.
patent: 3351585 (1967-11-01), Lee et al.
patent: 3679782 (1972-07-01), Andrew et al.
patent: 3754061 (1973-08-01), Forrest et al.

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