Recovery rates of iron, nickel, and chromium via iron-bath reduction of stainless steel dust briquettes based on corundum crucible erosion balance analysis

摘要: The leaching of chromium from stainless steel dust (SSD) is deleterious to the environment. To address this issue, reduction SSD briquettes can be employed effectively extract chromium. recovery rates iron, chromium, and nickel via iron-bath were determined using X-ray fluorescence spectroscopy, diffraction, scanning electron microscopy measurements. First, effects basicity contents silicon, CaF2, carbon on three metals analyzed slag amount prediction model, which was originally established Al2O3 balance corundum crucible erosion behavior. Second, effect feeding mode, i.e., whether scrap simultaneously added, discussed in detail. Third, thermodynamically analyzed. results indicated that are greater than 95% those a 1.5 6.0% 15% carbon, 7% ferrosilicon. rate increases twofold with addition mode adding better for separation metal firstly then briquettes.