Combining Recovering Iron with Activating the Residual Slag Process for Electric Arc Furnace (EAF) Slag

Zhi Wei Liu; Yu Li; Da Qiang Cang; Yi Chen; Shuai Jiang; Can Wang

doi:10.4028/www.scientific.net/AMM.275-277.2206

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Combining Recovering Iron with Activating the...

Combining Recovering Iron with Activating the Residual Slag Process for Electric Arc Furnace (EAF) Slag

Abstract:

Electric arc furnace (EAF) slag is the byproduct of electric arc furnace in the process of metallurgy. In this paper, a recovering iron process combined with an activating residual slag process for EAF slag has been put forward. Researches show that increasing fineness of EAF slag is adverse to recover iron from the slag and 21.27% of the EAF slag could be separated as recovered iron concentrate with grade of 64.34%. The residual slag after magnetic separation process could be activated through mixing activating agent. Hemihydrates gypsum was the best activating agent to improve reactivity of the residual slag, which could meet the requirement of the first grade of steel slag powder in national standard. Then residual slag cements had been successfully prepared with 30% of activated residual slag and a 28-day compressive strength of 44.46MPa.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

2206-2209

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.2206

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Online since:

January 2013

Authors:

Zhi Wei Liu, Yu Li, Da Qiang Cang, Yi Chen, Shuai Jiang, Can Wang

Keywords:

Activation, EAF Slag, Magnetic Separation, Residual Slag

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References

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