CAJ | 학술논문

针对铁酸锌型低品位氧化锌矿特点，采用焙烧?水浸工艺提取锌。通过XRD、SEM?EDS等测试分析，观察了焙烧前后、水浸后矿物的物相变化。实验结果表明，当硫酸用量70％，焙烧时间2．5 h，温度523 K时，锌浸出率达80％以上。
침대철산자형저품위양화자광특점，채용배소?수침공예제취자。통과XRD、SEM?EDS등측시분석，관찰료배소전후、수침후광물적물상변화。실험결과표명，당류산용량70％，배소시간2．5 h，온도523 K시，자침출솔체80％이상。
In the light of the characteristics of low?grade zinc oxide ores of zinc?ferrite type, sulfation roasting and water?leaching technique was employed to extract zinc therefrom. The phase transformations amidst roasting and water?leaching were analyzed by XRD and SEM/EDS. The results show that a high zinc leaching rate exceeding 80% can be achieved with the sulfuric acid dosage at 70 wt% of the feed ore, with the duration and temperature of roasting as 2. 5 h and 523 K, respectively.