Process for the manufacture of fine propellant powders by granul

Details Process for the manufacture of fine propellant powders by granul Process for the manufacture of fine propellant powders by granul

1981-11-13

1984-04-24

Sebastian, Leland A.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

107297, 107292, 149 96, 149118, 264 3C, C06B 4500

Patent

active

044446063

ABSTRACT:
The present invention relates to a process for the manufacture of fine propellant powders by granulation, and, by way of products, to the fine powders thus obtained.
The process according to the invention consists in granulating the base materials, wetted with solvent, in a granulating tray 11, in subsequently subjecting the granules thus obtained to a first partial drying in a drier 14, and in completing the finishing of the said granules in a rounder 16, optionally in the presence of solvent.
The process according to the invention can be carried out continuously or batchwise, with a very high degree of operational safety. The propellant powders thus obtained possess a good activity and are suitable for small-caliber and medium-caliber weapons.

REFERENCES:
patent: 1752881 (1930-04-01), Borland
patent: 3236702 (1966-02-01), Sapiego
patent: 3325571 (1967-06-01), Sapiego
patent: 3329743 (1967-07-01), Coffee
patent: 3563977 (1971-02-01), Cucinotta
patent: 3671342 (1972-06-01), Slawinski
patent: 3711343 (1973-01-01), Dunigan et al.
Davis, The Chemistry of Powder and Explosives, 1943, John Wiley & Sons, New York, pp. 287 to 292.
Urbanski, Chemistry and Technology of Explosives, vol. III, Pergamon Press, New York, 1967, pp. 640 and 641.

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