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    • 33. 发明专利
    • PRODUCING METHOD OF POWDERY GUNPOWDER COMPOSITION
    • JP2002179491A
    • 2002-06-26
    • JP2000376489
    • 2000-12-11
    • ASAHI KASEI CORP
    • YAMANAKA SAYAKAMIYA YASUSHI
    • C06B21/00C06B45/04
    • PROBLEM TO BE SOLVED: To provide a method for safely and inexpensively obtaining crystalline explosive which is poorly sensitive and is pulverized using a convenient equipment and to provide a producing method for obtaining a powdery gunpowder composition which is excellent in dispersibility and combination property of the crystalline explosive and the component other than the crystalline explosive. SOLUTION: A raw material of gunpowder composition such as trimethylene trinitramin is mixed with a good solvent such as methyl ethyl ketone, the crystalline explosive of one kind or more is dissolved in the good solvent by 20-98 wt.%, a suspension which completely dissolves the other components and is in the state of solid-liquid coexistence is allowed in contact with a poor solvent such as water to which the raw material of gunpowder composition is insoluble, thereby, the raw material of gunpowder composition is deposited and, as a result, the powdery gunpowder composition which contains the pulverized crystalline explosive which is controlled so as to be particulate is produced.