C - Chemistry – Metallurgy – 06 – B
Patent
C - Chemistry, Metallurgy
06
B
52/50
C06B 21/00 (2006.01) B30B 11/22 (2006.01) B30B 15/34 (2006.01)
Patent
CA 2028805
In the production of monobasic propellant charge powders with alcohol and ether as solvents there is the risk of ether bubbles forming in the propellant charge powder material, and those bubbles greatly reduce the quality of the propellant charge powder. The invention provides for cooling the propellant charge powder material prior to its leaving the extruder. To accomplish that, the extruder head (4) is provided with a cooling means. The invention is especially well suited for use in the preparation of monobasic propellant charge powders with alcohol and ether as solvents.
Le danger inhérent à la production de ce type de poudres réside dans le fait que des bulles d'éther se forment dans la poudre et en réduisent considérablement la qualité. La présente invention propose de refroidir la poudre de charge explosive avant qu'elle ne sorte du dispositif d'extrusion. Aussi la tête d'extrusion (4) est-elle munie d'un dispositif de refoidissement. Cette invention est conçue en particulier pour la fabrication de poudres de charge explosive monobasiques où un alcool ou un éther sert de solvant.
Cassan Maclean
Wnc-Nitrochemie G.m.b.h.
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