公开(公告)号：US20230407437A1

公开(公告)日：2023-12-21

申请号：US18061998

申请日：2022-12-05

申请人： UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

发明人： Xi LAN ,  Zhancheng GUO ,  Jintao GAO ,  Zengwu WANG ,  Guoliang FENG ,  Xiang LI ,  Rong YUAN

IPC分类号： C22B34/24 ,  C22B5/10

CPC分类号： C22B34/24 ,  C22B5/10

摘要： A method and an equipment for comprehensive utilization of niobite is disclosed. The method includes the following steps: S1. adding and uniformly mixing a coal-based reducing agent to the niobite, and subsequently reducing the mixture in a reduction furnace to obtain the selective reduction product; S2. adding the selective reduction product to a super-gravity reactor where the ambient temperature is controlled to be lower than the temperature at which the niobium oxide is reduced; driven by super-gravity, reverse migrating and collecting the metal iron and the niobium-rich slag at different locations in the reactor; discharging the metallic iron tightly attached to the wall of the reactor through an iron discharging port, and discharging the niobium-rich slag enriched to the inner layer of the reactor through a slag discharging port, so that the separation of the metallic iron and the niobium-rich slag is realized in the super-gravity field.