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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Recycling of Secondary, Byproduct Materials and Energy
Presentation Title Towards 100% Recycling of Steelmaking Offgas Solid Wastes by Reallocating Zinc-bearing Materials
Author(s) Naiyang Ma
On-Site Speaker (Planned) Naiyang Ma
Abstract Scope High zinc concentration in basic oxygen furnace steelmaking offgas solid wastes has been one of the major barriers hindering in-plant recycling of the solid wastes in an integrated steel mill. Therefore, zinc concentration is an important recyclability indicator of the steelmaking offgas solid wastes. In this study, zinc flow analysis was carried out and crucial zinc-bearing materials were identified. After the crucial zinc-bearing materials were reallocated, most of the steelmaking offgas solid wastes became internally recyclable in the sintering – blast furnace ironmaking process for utilization of iron and fluxes. The rest of the steelmaking offgas solid wastes could be recycled internally in the briquetting – basic oxygen furnace steelmaking process for cooling effect and externally in cement industry for iron. As a result, 100% recycling of the steelmaking offgas solid wastes were achieved.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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Carbon Black from Waste Tires: Purification Strategies and Recycle Potential
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E-52: Characterization of Wasted LEDs from Tubular Lamps Focused on Recycling Process by Hydrometallurgy
E-55: Gravity Separation of Zinc Mine Tailing Using Wilfley Shaking Table to Concentrate Hematite.
E-56: Hydrothermal Regeneration of Cycled LiFePO4 Cathode Material from Spent Lithium Ion Batteries
E-57: Minimization of Copper Contamination in Steel Scrap
E-61: Residual Quarry Sludge Stabilization to Prefabricate Sustainable Building Elements.
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Thermodynamic Modeling and Experimental Validation of Iron-Containing Intermetallic Phase Formation in Recycled Cast Aluminum Alloys
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Towards 100% Recycling of Steelmaking Offgas Solid Wastes by Reallocating Zinc-bearing Materials

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