Guanghui Li

TL;DR: In this article, the reduction roasting of laterite ore in the absence or presence of sodium sulfate was carried out for nickel beneficiation by wet magnetic separation, and the average particle size of ferronickel grains was approximately 50μm.

TL;DR: In this paper, the authors reviewed the chemical and physical properties of electric arc furnace (EAF) dust and its thermodynamic characteristics in pyrometallurgical processing, followed by an in-depth discussion of a variety of the pyrometric processes for recycling of the dust, including Waelz kiln process, rotary hearth furnace (RHF) process, PRIMUS process, OXYCUP process, coke-packed bed process, Ausmelt process, Elkem multi-purpose furnace (EMPF) process.

TL;DR: The feasibility of an integrated technological route for comprehensive utilization of red mud was verified and Sodium salts were proved to be favorable for the magnetic separation of metallic iron and the subsequent acid leaching of Al and Si, through facilitating the reduction of iron oxides and the growth of metallicIron grains.

TL;DR: In this article, a low-temperature reduction of nickeliferous laterite ores followed by magnetic separation could provide an alternative avenue without smelting at high temperature (~1500°C) for producing ferronickel.

TL;DR: In this paper, the effects of sodium salts on reduction roasting and Fe-P separation of high-phosphorus oolitic hematite ore were studied in the process of coal-based direct reduction followed by wet magnetic separation.