Sätt att framställa prills av ammoniumdinitramid (ADN) samt bimodal blandning av ADN-prills

摘要

The invention relates to a method of producing prills of ADN. The method comprises melting and dispersion of ADN in a nonpolar medium to obtain droplets of ADN in the medium; cooling the medium for solidification of the droplets into prills and separation of said prills from the medium. The invention is characterised in that ultrasonic energy is supplied to the medium during dispersion. The invention also concerns a polymodal mixture of ADN prills containing prills having a particle size of less than 40 mu m produced according to the method.