摘要
以山东省某赤泥高阶磁选过程中的底流(铁品位31. 07%)、粗精(铁品位42. 73%)为原料,采用流态化磁化焙烧-弱磁选工艺进行实验研究。结果表明:该赤泥过细流化困难,但经过高阶磁选工艺"抛细留粗"处理的底流、粗精均可以实现连续、稳定的流态化。底流在采用流态化磁化焙烧-弱磁选工艺后,铁品位可以提高至62. 04%,铁回收率可以提高至68. 35%;粗精在采用流态化磁化焙烧-弱磁选工艺后,铁品位可以提高至63. 88%,铁回收率可以提高至85. 47%。
Magnetic roasting via a fluidized bed was carried out for the high intensity magnetic pro-concentration products of the red mud from Shandong. The results show that the red mud is hard to flow in fluidized bed while the high intensity magnetic pro-concentration products have fine fluidization. The iron grade 31. 07% sample magnetic roasting followed by magnetic separating can upgrade the concentrate to the iron content of 62. 04% with a Fe recovery rate of 68. 35%. The iron grade 42. 73% sample magnetic roasting followed by magnetic separating can upgrade the concentrate to the iron content of 63. 88% with a Fe recovery rate of 85. 47%.
作者
邵国强
谢朝晖
闫冬
朱庆山
SHAO Guoqiang;XIE Zhaohui;YAN Dong;ZHU Qingshan(State Key Laboratory of Multiphase Complex Systems, Chinese Academy of Sciences, Beijing 100190, China)
出处
《中国粉体技术》
CAS
CSCD
2019年第6期1-6,共6页
China Powder Science and Technology
基金
国家自然科学基金重点项目,编号:21736010
关键词
流化床
磁化焙烧
高阶磁选
赤泥
fluidization
magnetic roasting
high intensity magnetic
red mud
作者简介
第一作者:邵国强(1986-),男,硕士,助理研究员,研究方向为矿产资源禹效利用。E-mail:gqshao@ipe.ac.cn;通信作者:朱庆山(1969-),男,博士,研究员,博士生导师,研究方向为纳微粉体结构调控、矿产资源高效利用、流态化过程强化等。E-mail:qszhu@home.ipe.ac.cn.
