When EAF Dust and Mill Scale from Steelmaking Process Turn to Raw Materials for Tenmoku Oil Spot Glaze

This project presents how steel recycling by-products employed as decorative ceramic glaze raw materials.Two steelmaking wastes were of interests: electric arc furnace dust and mill scale.EAF dust is collected from off-gas fume during melting.The dust containing zinc ferrite with some heavy metals is concerned as a toxic waste.Mill scale collected from a hot-rolled reheating furnace is iron-rich oxide and non-toxic.The as-received wastes were chemically analyzed.A mid-fired glaze, oil spot tenmoku, were carefully formulated and investigated.The work showed both wastes successfully provided the glaze with lustrous and silvery spotting effect