Highlights•Highly efficient iron recovery from iron tailings using advanced SMRS technology
was achieved.•P1 models with an Eα of 51.56 kJ/mol and ak of 3.14 exp (− 51.56/RT) were …

Complex refractory hematite with abundant reserves plays an significant role in the
development of global iron and steel industry. In this study, the thermodynamics, phase …

The utilization of laterite sulfuric acid leach residue has always been a challenge in the
metallurgical industry. The current treatment involves deep-sea landfills, which leads to …

Iron ore tailings have proved to be one of the most hazardous solid wastes. This paper
presents an innovative technological method for recycling iron from tailings that involves …

Porous hematite ore was prepared by the dehydration of low-grade limonite ore with high
moisture content. In this study, the mechanisms and kinetics of the isothermal reduction of …

The current study investigates hydrogen reduction of low-grade iron ore (∼ 37% Fe)
containing dispersed bands of hematite and jasper/quartzite phases. Gaseous hydrogen …

A low grade iron ore containing 51.6% Fe, 17.6% SiO2, 4.3% Al2O3, and 3.8% LOI was
subjected to reduction roasting followed by low intensity magnetic separation studies. The …

The high-efficiency extraction of iron from early iron tailings via the innovative suspension
roasting-magnetic separation (SRMS) technology would be an important method to …

Flotation tailings are a secondary iron ore resource with abundant reserves and recycling
value. In this study, low-grade flotation tailings (TFe= 21.86%) with silica of 57.85% has …

Sulfur is a harmful impurity in iron ore, which seriously affects the subsequent smelting
process and product quality. In this study, a novel process of hydrogen-based mineral phase …