Preparation of Spherical Ammonium Nitrate Particles by Melt Spray

被引：7

作者：

Kim, Jae-Kyeong ^{[1
]}

Choi, Seung-Il ^{[1
]}

Kim, Eui Jung ^{[2
]}

Kim, Jun Hyung ^{[3
]}

Koo, Kee-Kahb ^{[1
]}

机构：

[1] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea

[2] Univ Ulsan, Dept Chem Engn, Ulsan 680749, South Korea

[3] Agcy Def Dev, Taejon 305600, South Korea

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2010年 / 49卷 / 24期

关键词：

Nitrates; -; Spheres;

D O I：

10.1021/ie1006992

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Spherical ammonium nitrate particles with average diameters of 82-206 mu m were produced using the melt spray system built in the present work The effects of spray pressure and temperature on the size distribution and average diameter of the ammonium nitrate particles were investigated It was found that increasing the spray pressure at given temperature or increasing the temperature at given pressure enhanced the disintegration of the front edge of the liquid sheet into fine droplets and, thus, slightly reduced the average diameter of the ammonium nitrate particles X-ray diffraction patterns confirmed all spherical ammonium nitrate particles to be form IV because of a rapid phase transition from form I to form IV Dombrowski and Johns' equation, which is applicable to highly viscous spray fluids, was found to be satisfactory for estimating the Sauter diameter of the ammonium nitrate particles

引用

页码：12632 / 12637

页数：6

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