高氯酸铵生产中杂质氯酸盐处理工艺探讨

Treatment Process of Chlorate Impurity in Ammonium Perchlorate Production

在高氯酸铵（AP）生产中,原料高氯酸钠中所含的氯酸盐杂质量过大,会影响AP的热稳定性.进行了4种氯酸盐杂质去除实验,其中盐酸与过氧化氢工艺路线较理想：90℃反应1.0～1.5 h,停止加热后再反应0.25～0.5 h,V（高氯酸钠）∶V（盐酸）∶V（过氧化氢）=400∶4∶1.最终能将高氯酸钠溶液中杂质氯酸钠质量含量降到较低程度,产品AP中氯酸钠质量分数≤0.014%,符合国军标.

In ammonium perchlorate（AP） production, chlorate impurity in the raw material will influence the thermostability of AP. Four experiments eliminating chlorate were carried out. It is discovered that HCI＋H2O2 process is better. That is： reaction 1.0-1.5 h at 90℃, continuing reaction 0.25-0.5 h after stopping heating, V（NaCIO4）： V（HCI）： V（H2O2）=400：4：1. The mass content of sodium chlorate impurity in sodium perchlorate solution can finally decrease to lower extent. The mass fraction of sodium chlorate in AP ≤ 0.014% according with the national military standard.