SHAO Guoqiang, XIE Zhaohui, YAN Dong, ZHU Qingshan

(Institute of Process Engineering；State Key Laboratory of Multiphase Complex Systems,Chinese Academy of Sciences, Beijing 100190, China)

Abstract: 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%.

Keywords: fluidization; magnetic roasting; high intensity magnetic; red mud

中图分类号：TD792                              文献标志码：A

文章编号：1008-5548(2019)06-0001-06

DOI:10.13732/j.issn.1008-5548.2019.06.001

收稿日期： 2019-07-15， 修回日期：2019-09-15，在线出版时间：2019-09-29 08:45。

基金项目：国家自然科学基金重点项目，编号：21736010。

第一作者简介：邵国强(1986—)，男，硕士，助理研究员，研究方向为矿产资源高效利用。E-mail：gqshao@ipe.ac.cn。

通信作者简介：

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。