CAJ | 학술논문

研究了在盐酸介质中直接浸出拜耳法赤泥高炉炼铁炉渣中的铝，通过正交试验考察了盐酸浓度、反应温度、反应时间等因素对铝浸出率的影响，并通过单因素试验优化了工艺条件。试验结果表明：影响铝浸出率的主要因素依次为盐酸浓度、反应温度和反应时间；铝浸出最佳条件为盐酸浓度8．4 mol／L ，反应温度90℃，反应时间1 h；最优条件下，铝浸出率为85．18％。
연구료재염산개질중직접침출배이법적니고로련철로사중적려，통과정교시험고찰료염산농도、반응온도、반응시간등인소대려침출솔적영향，병통과단인소시험우화료공예조건。시험결과표명：영향려침출솔적주요인소의차위염산농도、반응온도화반응시간；려침출최가조건위염산농도8．4 mol／L ，반응온도90℃，반응시간1 h；최우조건하，려침출솔위85．18％。
The leaching of aluminum from blast furnace slag of Bayer red mud ironmaking using hydrochloric acid were studied .Orthogonal experiments and single‐factor experiments were employed to examine the influences of hydrochloric acid concentration ,reaction time and reaction temperature on the aluminum leaching .T he results show that the main influence factors on aluminum leaching rate are in the following order hydrochloric acid concentration ,reaction temperature ,reaction time .The most suitable conditions for the leaching of aluminum are the HCl concentration of 8 .4 mol/L ,the reaction temperature of 90 ℃ and the reaction time of 1 h .Under the conditions ,the leaching rate of aluminum can reach 85 .18% .