申请人:——
公开号:US20020095966A1
公开(公告)日:2002-07-25
Ammonium sulfate nitrate composite materials useful as fertilizers having desirable levels of nitrate ions, superior stability against detonation, higher density, greater resistance to moisture, and a method for their manufacture. The ammonium sulfate nitrate composites have as essential constituents ammonium sulfate and the NH
4
SO
4
.2(NH
4
NO
3
) double salt with less than 5 wt. % in combined total of the more hazardous NH
4
SO
4
.3(NH
4
NO
3
) double salt and ammonium nitrate.
The composites of the invention are formed by reacting ammonium sulfate with ammonium nitrate in a molar ratio of about 0.9:1 to about 1.1:1 in the presence of a small amount of water in a narrow range of temperatures and then cooling to solidification at a sufficiently rapid rate to prevent macroscopic segregation of the reaction products.
硫酸铵硝酸盐复合材料可用作肥料,具有理想的硝酸盐离子水平,对爆炸的稳定性更高,密度更大,防潮性更强,并提供一种制造方法。 硫酸铵硝酸盐复合材料的基本成分为硫酸铵和NH4SO4.2(NH4NO3)双盐,其危险性更大的NH4SO4.3(NH4NO3)双盐和硝酸铵的总和不超过5重量%。该发明的复合材料是通过在狭窄的温度范围内在少量水的存在下以约0.9:1至约1.1:1的摩尔比反应硫酸铵和硝酸铵,然后以足够快的速度冷却至固化,以防止反应产物的宏观分离而形成的。