Study on Oxidation Behavior of Industrial Basic Oxygen Furnace Slag and Recovery of Magnetic Iron-Containing Phase

Article Engineering, Environmental

Efficient iron recovery from iron tailings using advanced suspension reduction technology: A study of reaction kinetics, phase transformation, and structure evolution

Shuai Yuan et al.

Summary: This study investigated the reduction kinetics, phase transformation, and structure evolution of iron tailings to explain the mechanism behind magnetite production using suspension roasting-magnetic separation technology. The results showed that high temperatures during the suspension reduction process improved the reduction rate of iron tailings, with the P1 model being the best kinetics model for this reduction reaction. The gradual formation of magnetite from hematite through SRMS technology was observed, shedding light on efficient and clean recycling of iron tailings.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Review Soil Science

Environmental risks for application of iron and steel slags in soils in China: A review

Xiaobin Wang et al.

Summary: Iron and steel slags, byproducts of smelting process, contain harmful pollutants such as nickel, copper, mercury, zinc, and cadmium, which exceed environmental quality standards and should not be used directly for soil remediation in farmlands to prevent harm to human health.

PEDOSPHERE (2021)

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Article Energy & Fuels

Magnetic Steel Slag Biochar for Ammonium Nitrogen Removal from Aqueous Solution

Gyuhyeon Kim et al.

Summary: Utilizing magnetic biochar synthesized from steel slag waste can effectively remove NH4-N in aqueous solution, with a maximum adsorption capacity of 4.366 mg/g. The magnetic properties exhibit paramagnetic behavior, making it suitable for NH4-N removal.

ENERGIES (2021)

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Article Construction & Building Technology

Structural Evaluation of Flexible Pavement Constructed with Steel Slag-Fly Ash-Lime Mix in the Base Layer

R. R. Pai et al.

Summary: The study confirmed the potential of steel slag-fly ash-lime (SFL) mix as a replacement for wet mix macadam in flexible pavement base layer through laboratory investigation and field evaluation, demonstrating higher stiffness, lower deflections, and significant cost savings.

JOURNAL OF MATERIALS IN CIVIL ENGINEERING (2021)

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Article Metallurgy & Metallurgical Engineering