Process for preparing prilled porous ammonium nitrate
    2.
    发明授权
    Process for preparing prilled porous ammonium nitrate 失效
    制备多孔硝酸铵的方法

    公开(公告)号:US3966853A

    公开(公告)日:1976-06-29

    申请号:US509257

    申请日:1974-09-25

    CPC分类号: C06B21/0091 Y10S264/51

    摘要: A prilled ammonium nitrate containing 2 to 5 percent by weight water obtained by prilling an aqueous solution of 93 to 98 percent by weight ammonium nitrate is dried by: lowering the drying temperature of the ammonium nitrate to a temperature less than the III--IV crystalline transition temperature of ammonium nitrate at least once when the water content of the prilled ammonium nitrate is 0.3 to 1.5 percent by weight in the drying step; further drying at a temperature higher than the III--IV transition temperature; and adding an anti-caking agent to the dried prilled ammonium nitrate. The dried, prilled ammonium nitrate obtained is useful as an ammonium nitrate fuel oil explosive.

    摘要翻译: 通过将93至98重量%硝酸铵的水溶液造粒得到的含有2至5重量%水的颗粒状硝酸铵通过以下方法干燥:将硝酸铵的干燥温度降低至低于III-IV晶体转变温度 在干燥步骤中,当硝酸铵的含水量为0.3〜1.5重量%时,硝酸铵的温度至少为一次; 在高于III-IV转变温度的温度下进一步干燥; 并向干燥的粒状硝酸铵中加入抗结块剂。 所得的干燥,造粒的硝酸铵可用作硝酸铵燃料油炸药。