Work

Experimental investigation on magnetic gravity combined beneficiation of low-grade iron ore

Year: 2024

Type: article

Abstract: Iron ore is an important raw material for manufacturing steel, while the grade of domestic iron ore is relatively low in China, thus it is difficult to concentrate. The low-grade iron ore with a total iron content of only 33.51% is innovatively upgraded by the magnetic-gravity combined beneficiation method. The effects of three key operating parameters of magnetic induction, grinding concentration, and centrifuge speed on magnetic-gravity combined beneficiation are investigated. These results show that the magnetic-gravity combined beneficiation method significantly improves the iron grade of the concentrates at high recovery. The feasibility is further confirmed through continuous expansion semi-industrial tests with the optimized parameters. The grade of the iron ore concentrate is increased from 33.51% to 63.58% with an iron recovery of 71.01% and a productivity of 37.43%. It is thus concluded that the magnetic-gravity combined beneficiation method has provided a technical reference for the recovery of iron resources from low-grade ores.

Source: Physicochemical Problems of Mineral Processing

DOI: 10.37190/ppmp/192832

Authors: Fangping Ye, Yaojie Duan, Zhiqiang Guo

Institution: Hubei University of Technology

Language: English

Topic: Mineral Processing and Grinding

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

Funders: Natural Science Foundation of Hubei Province, Wuhan University, Wuhan University of Technology