Yu Jianwen

TL;DR: In this paper, the beneficiation of a low-grade hematite ore fine containing carbonates with magnetization roasting and magnetic separation was proposed and studied, and the effects of roasting temperature, reaction time and coal to ore ratio on the magnetic properties of roasted materials were investigated using a vibration sample magnetometer.

TL;DR: In this paper, the authors proposed a common theme for the sustainable development of the world steel and iron industry: improving utilization efficiency of refractory iron ore resources is a common topic for sustainable development.

TL;DR: The mechanism and kinetics of the reduction of hematite to magnetite in a laboratory-scale, micro-fluidized bed reactor were isothermally investigated in this article.

TL;DR: In this article, a process of magnetizing roasting followed by low-intensity magnetic separation was used to separate and recover iron from a low-grade carbonate-bearing iron ore (containing 34.6 wt.% Fe), was investigated.

TL;DR: In this paper, the effect of reduction temperature, H2 concentration, reduction time and gas flow rate on the metallization degree of the reduced product were studied, and the phase compositions and microstructures of sample were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).