Ultrafine alumina powders were prepared by pyrolysis of the aluminium precursor powders obtained by precipitation method using aluminium nitrate and ammonium carbonate as raw materials.
以硝酸铝为原料，碳酸铵为沉淀剂，合成前驱体碳酸铝铵，然后煅烧得到纳米级氧化铝粉体。
Results indicate that the evaluation of the critical value for the occurrence of thermal explosion of ammonium nitrate solution by this method is rational.
结果表明，用此方法评估硝酸铵溶液热爆炸发生的临界值是合理的。
Based on the results obtained from this analysis, a two-step precipitating and separating method to recover ammonium nitrate from the waste liquid has been developed.
在此基础上，研究成功一种“二步分级沉淀回收废液中硝酸铵”的方法。
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