CAJ | 학술논문

针对广西某地高铁一水硬铝石型铝土矿的矿物特性，采用拜耳法溶出工艺，对其进行了溶出试验研究。研究结果表明：最佳溶出条件为溶出温度270℃、溶出时间60 min、配料分子比1．45、石灰加入量7％、磨矿细度（-0．097 mm含量）为85％、循环母液苛性碱浓度230 g/L，在此条件下氧化铝的相对溶出率达到95．15％。
침대엄서모지고철일수경려석형려토광적광물특성，채용배이법용출공예，대기진행료용출시험연구。연구결과표명：최가용출조건위용출온도270℃、용출시간60 min、배료분자비1．45、석회가입량7％、마광세도（-0．097 mm함량）위85％、순배모액가성감농도230 g/L，재차조건하양화려적상대용출솔체도95．15％。
Based on the characteristics of the high -iron diasporic bauxite from Guangxi ,leaching alumina by Bayer process was carried out .The results showed that the optimum conditions were di-gestion temperature of 270 ℃,digestion time of 60 minutes,caustic ratio of 1.45,lime dosage of 7% to bauxite ,grinding fineness of ore to -0 .097 mm accounted for 85%,caustic alkali concentra-tion of 230 g/L.Under the optimum conditions ,the digestion rate of alumina was 95.15%.