湿法冶金
濕法冶金
습법야금
HYDROMETALLURGY OF CHINA
2014年
5期
358-360
,共3页
高铁铝土矿%还原焙烧%加压浸出%磁选%铁%铝%分离
高鐵鋁土礦%還原焙燒%加壓浸齣%磁選%鐵%鋁%分離
고철려토광%환원배소%가압침출%자선%철%려%분리
high ferrous bauxite%magnetic roasting%separation%aluminum%iron
针对广西某高铁铝土矿研究了在还原气氛中磁化焙烧再高压溶出最后磁选分离铁，考察了焙烧温度、焙烧时间、还原剂A体积分数、加热方式等对铁、铝分离的影响，确定了铁、铝分离最佳条件。试验结果表明，最佳条件下，氧化铝溶出率为84．15％，铁回收率为94．45％。
針對廣西某高鐵鋁土礦研究瞭在還原氣氛中磁化焙燒再高壓溶齣最後磁選分離鐵，攷察瞭焙燒溫度、焙燒時間、還原劑A體積分數、加熱方式等對鐵、鋁分離的影響，確定瞭鐵、鋁分離最佳條件。試驗結果錶明，最佳條件下，氧化鋁溶齣率為84．15％，鐵迴收率為94．45％。
침대엄서모고철려토광연구료재환원기분중자화배소재고압용출최후자선분리철，고찰료배소온도、배소시간、환원제A체적분수、가열방식등대철、려분리적영향，학정료철、려분리최가조건。시험결과표명，최가조건하，양화려용출솔위84．15％，철회수솔위94．45％。
For high iron bauxite from Guangxi ,by magnetic roasting in reduction atmosphere ,then high pressure dissolving ,finally magnetic separating iron ,the effect of roasting temperature ,roasting time , volume fraction of reducing agent A and heating type on separating iron and alumina were examined , and the best conditions of separating iron and alumina were determined .Under the optimal conditions , the leaching rate of alumina is 84 .15% ,and recovery rate of iron is 95 .45% .
