Review on the innovative uses of steel slag for waste minimization

Dhoble, Yogesh Nathuji; Ahmed, Sirajuddin

doi:10.1007/s10163-018-0711-z

Cited by 91 publications

(31 citation statements)

References 50 publications

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“…The current slag application fields settle mainly in the construction areas, namely cement production, road construction, utilization as a fertilizer, wastewater treatment and others disposing of ca. 70% of produced waste with landfilling constituting the rest [3] , [4] . An alternative way of slag utilization is related to the application in catalysis benefitting from its unique properties.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound irradiation as an effective tool in synthesis of the slag-based catalysts for carboxymethylation

Kholkina

Kumar

Eränen

et al. 2021

Ultrasonics Sonochemistry

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Highlights Synthesis of low-cost catalysts from desulfurization slag. Application of ultrasonication for process intensification. Increase of surface area from 6 to 49 m 2 /g. Development of texture and crystal morphology. Strong improvement of catalytic activity in carboxymethylation of cinamyl alcohol.

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Section: Introductionmentioning

confidence: 99%

Ultrasound irradiation as an effective tool in synthesis of the slag-based catalysts for carboxymethylation

Kholkina

Kumar

Eränen

et al. 2021

Ultrasonics Sonochemistry

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“…Studies have been reported to partial replace Portland cement with diverse industrial byproduct raw materials, such as basic oxygen steelmaking slag (BOF) [ 9 , 10 , 11 ]. Steel production is estimated to be 50 million tons worldwide every year, which brings tons of steel byproducts [ 12 , 13 , 14 ]. China, the largest steel market worldwide that produces more than one-half of the global raw steel production in 2019, has shifted its emphasis on the effective application of steel byproducts, such as BOF, in production of Portland cement [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material

et al. 2020

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Portland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon footprint resulted from the production of the ordinary Portland cement (OPC), which may resolve the environmental issues associated with carbon dioxide emissions. The ordinary Portland cement type I enhanced by basic oxygen steelmaking slag (BOF) is produced and casted into cubic and beam-like samples for the compressive and three-point bending tests, and the compressive and flexural strengths are experimentally measured. Numerical simulations are conducted to compare with the experimental result and satisfactory agreements are obtained. X-ray diffraction (XRD) investigations and porosity tests are then carried out using the semi-adiabatic calorimetry, which indicates that 5% BOF is the optimal ratio to accelerate the hydration process while increasing the amount of hydration products, especially at the early curing age of 3 days. Scanning electron microscope (SEM) images further indicate that BOF can be used to prevent the development of microcracks while mitigating their propagation within cement mortar. Our study indicates that the compressive strength of OPC can be critically increased by BOF at the relatively low concentrations of 5%. The blended slag cement reported in this paper provides advanced understanding on the green building material that uses byproduct wastes for the mechanical and electrical performance.

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“…Studies on utilization and upgrading of solid residual materials from bulk chemical, petro-chemical, metallurgical, steel and nuclear industry are gaining importance for both academia and industry. The issue of slag recycling from pyrometallurgical processing of natural ores attracts attention of many scientists in connection with a possibility of converting slags in to valueadded products and reduction waste [1].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Novel Catalytic Materials Using Industrial Slag: Influence of Alkaline Pretreatment, Synthesis Time and Temperature

et al. 2019

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Industrial ferrous wastes found their application in construction. However, they are mostly stored polluting the environment. In the current work, possibility of value added products synthesis from steel slag with their further use as catalysts was investigated. Slag-based catalysts were obtained by alkaline treatment with sodium hydroxide by variation of synthesis parameters. The physico-chemical properties of the synthesized materials were determined by N 2-physisorption, SEM, EDX, TEM, XRD and TPD. Slag-based catalysts were applied in the transformation of wood biomass, namely softwood sawdust. Novel catalytic materials synthesized from industrial slag exhibited the presence of strong basic sites and highly crystalline phases of SiO 2 , Al 2 O 3 , CaCO 3 , Ca(OH) 2 , Fe 2 O 3 , MgO and TiO 2. Alkaline treatment of the raw material promoted creation of mesoporosity and an increase of the surface area. Catalytic fast pyrolysis of pine sawdust displayed variations in the yields of the reaction products in the presence of catalysts as compared to thermal fast pyrolysis.

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Review on the innovative uses of steel slag for waste minimization

Cited by 91 publications

References 50 publications

Ultrasound irradiation as an effective tool in synthesis of the slag-based catalysts for carboxymethylation

Ultrasound irradiation as an effective tool in synthesis of the slag-based catalysts for carboxymethylation

Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material

Synthesis and Characterization of Novel Catalytic Materials Using Industrial Slag: Influence of Alkaline Pretreatment, Synthesis Time and Temperature

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