Explosive and thermic compositions or charges – Processes of making
Reexamination Certificate
2005-06-07
2005-06-07
Hardee, John R. (Department: 1751)
Explosive and thermic compositions or charges
Processes of making
C149S046000
Reexamination Certificate
active
06902637
ABSTRACT:
A process for preparing free-flowing, phase-stabilized ammonium nitrate comprises the following steps. A solution of ammonium nitrate (12), a surfactant (13), a phase stabilizer (26), and an inert liquid (20) is prepared. The solution is atomized to form a stream of droplets. The droplets are freeze-dried to form agglomerates (54) of crystals of phase stabilized ammonium nitrate. The crystals of phase stabilized ammonium nitrate in the agglomerates are coated with a film comprising the surfactant. The agglomerates are disintegrated into separated free-flowing phase stabilized ammonium nitrate in the agglomerates crystals coated with a film comprising the surfactant.
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Hardee John R.
Tarolli, Sundheim,. Covell & Tummino L.L.P.
TRW Inc.
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