【摘要】 采用盐酸为浸取剂,研究了常压下赤泥中镓和铝的浸出行为,考察盐酸添加量、温度、时间及液固比对镓、铝浸出行为的影响。结果表明,在盐酸添加系数1.2、浸出温度55℃、浸出时间4h、液固比8(mL/g)的条件下,镓浸出率高达94.77%,铝浸出率88.44%,浸出液含Ga2O33.68mg/L、Al2O322.73g/L。在该试验条件下,镓与铝的浸出效率成明显的正相关性。更多还原

【Abstract】 Leaching behavior of Ga and Al in red mud was studied at atmospheric pressure with hydrochloric acid as leachant.The effects of dosage of hydrochloric acid,temperature,time,and L/S on leaching behavior of Ga and Al were investigated.The results show that leaching rates of Ga and Al are 94.77%and 88.44% respectively,with concentrations of Ga₂O₃ and Al₂O₃ of 3.68 mg/L and 22.73g/L in lixivium,respectively,under the conditions including acid addition coefficient of 1.2,leaching temperature of 55 ℃,leaching time of 4h,and L/S=8.Leaching efficiencies of Ga and Al are in positive correlation under the test conditions.更多还原