It can reduce environment pollution and make full use of resources to refine and recycle of active zinc oxide from zinc oxide flue dust. In accordance with ammonia complex method and leaching rate, this paper studied 6 factors influence on leaching rate ,which factors included ammonia, ammonium hydrogen carbonate, hydrogen peroxide, reaction temperature, reaction time and stirring speed. The frequency optimization research shows that leaching rate can reach 91.0% in the condition of 38.6℃~48.1℃reaction temperature, 377~446 r.min-1 stirring speed, 130.8~142.6 mL ammonia, 5.26~6.0 mL hydrogen peroxid, l.3~2.7 h reaction temperature, 28.3~38.3 g ammonium hydrogen carbonate.%将氧化锌烟道灰通过提炼回收为活性氧化锌,能减少污染环境和充分利用资源.基于氨配合法,以浸取率为目标,以氨水、碳酸氢铵、过氧化氢、反应温度、反应时间、搅拌速度为基本因素,采用单因素试验和正交多因素试验结合,通过频率寻优研究了各因素对浸取率的影响.研究表明:在反应温度为 38.6℃~48.1℃、搅拌速度为 377~446 r.min-1、氨水用量为130.8~142.6 mL、过氧化氢用量为5.26~6.0 mL、反应时间l.3~2.7 h、碳酸氢铵用量28.3~38.3 g时,浸取率可达到91.0%以上.
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