Ferrochrome slag aggregate: physical-chemical characteristics and

Ferrochrome slag (FS) is another residue that is obtained as a solid waste by the smelting process during the production of stainless steel in Ferroalloy industries. FS possesses the required ...

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Magnesium recovery from ferrochrome slag: kinetics and …

The ever-increasing demand for ferrochrome alloys has resulted in a substantial accumulation of ferrochrome slag by-products in many mining areas. On the other hand, the ferrochrome slag has been identified as one waste material that is rich in magnesium (Mg) and has not been effectively exploited. Beneficiating of ferrochrome slag (FCS) waste ...

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Magnesium recovery from ferrochrome slag: kinetics …

Research article Magnesium recovery from ferrochrome slag: kinetics and possible use in a circular economy L.B. Moyoa,b,*, G.S. Simatea, T.A. Mamvurac a School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Private Bag 3, Wits, 2050, Johannesburg, South Africa b Department of Chemical Engineering, National University of …

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Mechanical and leaching behaviour of cement …

This study is focusing on the reuse of waste ferrochrome slag (FeCr-slag) as a partial replacement for sand in the production of cement mortar with improved thermal and mechanical properties.

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The recovery of ferrochrome from slag at Zimasco

Ferro chrome slag may contain chromium in +3 and +6 oxidation states. Separation and determination of chromium content of the slag samples collected from Jindal Ferro Alloys Corporation, (Kottha…

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PRODUCTION, CHARACTERISTICS AND USE OF …

Outokumpu Tornio Works produces 320 000 t FeCr-slag/a. This paper deals with formation of slag in smelt-ing process, its chemical composition, physical and structural characteristics, …

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Environmental and technical assessment of ferrochrome slag …

In ferrochrome manufacturing process, the slag is a reactive medium, where most of the reduction reaction takes place. Ferrochrome (FeCr) slag is found to consist of mainly silica, alumina and magnesia with significant amounts of chromium and iron oxides in the form of Partially Altered Chromite (PAC) and entrained ferrochrome alloy [4].At smelting condition, …

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X-ray diffraction pattern of ferrochrome slag used.

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27–33% SiO2 ...

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A critical review of the material characteristics, utilizations

Ferrochrome slag is primarily characterized by its main components, which are MgO, Al 2 O 3, and SiO 2, collectively constituting over 80% of its composition, while the …

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Ferrochrome slag: A critical review of its properties, …

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS …

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Recovery of Chromium from Ferrochrome Slag

Ferrochrome slag generated from alumino-thermi method piles up in large quantities poses many problems to the environment and contaminates ground water on long run, needs to be addressed very ...

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Comprehensive Characterization of Ferrochrome Slag and Ferrochrome …

Ferrochrome slag that has been water-cooled is present in granulated form with grain sizes that are similar to natural sand. Ferrochrome slag is a derivative of the manufacturing of ferrochrome, an alloy of Cr (chromium) and Fe (iron) with chromium by 51–69 percent of the mass and varying proportions of Fe (iron), C (carbon), and others [18 ...

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CHARACTERIZATION OF FERROCHROME SLAG AS AN …

ferrochrome slag and red soil, along with other industrial wastes (red mud and fly ash), are detailed based on the Unified Soil Classification System (USCS) and IS Classification (IS: 1498 – 1970), as presented in Table 4.6 and Table 4.7, respectively. The Cu values for ferrochrome slag, red mud, fly ash, and red soil are 2.79, 1.89, 1.50 ...

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Strength and Uniaxial Water Penetration Characteristics …

Ferrochrome slag that is grinded in Los Angeles abrasion test for 30 minutes is used in second test. 4. RESULT AND DISCUSSIONS 4.1Workability The workability of concrete mixes was found out by slump test as per procedure given in chapter …

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Comprehensive Characterization of Ferrochrome Slag …

atures, different sizes of ferrochrome slag aggregates are formed. After alloy recovery, air-cooled slag of 10–20mm size is produced, which has been utilized as coarse aggregate by numerous researchers [17]. Ferrochrome slag that has been water-cooled is present in granulated form with grain sizes that are similar to natural sand ...

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The Different Types of Ferrochrome to Be Traded: HC, LC, …

Ferrochrome is an essential component in the production of stainless steel, with its different types offering varying qualities and applications. The three primary grades of ferrochrome traded in the market are High Carbon (HC), Low Carbon (LC), and Medium Carbon (MC) ferrochrome, each catering to specific requirements in manufacturing and metallurgical …

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Magnesium recovery from ferrochrome slag: kinetics and …

It is actually noted that Southern Africa has the largest resource of metallurgical grade chromite ore in the world. A substantial amount of these reserves lie along the Great Dyke in Zimbabwe (Mashanyare and Guest, 1997).A smelting technique is used to create ferrochrome alloys from chromite ores, and for every tonne of ferrochrome alloy produced, about 1.2 tonnes …

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Fundamentals of Ferrochrome (FeCr) Alloy and Its Slag

Hence, ferrochrome slag is thought to be a useful raw material for production of high temperature insulation bricks, construction work using geopolymer made from chromium slag, etc. Therefore, R&D scientists are trying to find suitable uses for other applications. In this chapter, the fundamentals of ferrochrome slag chemistry are discussed.

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Effect of Phase Composition on Leaching Behavior and …

Ferrochrome slag (FS) and tundish slag (TS) are two typical slags containing high contents of Cr2O3 (3.88 wt.%) and MnO (18.69 wt.%), respectively. In this study, batches of ceramics were prepared ...

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A Short Review on Utilization of Ferrochromium Slag

Recycling and efficient utilization of the large volumes of slag generated by ferrochrome production process is a huge challenge for ferrochrome producers. This article reviews ferrochromium slag utilization with reference to refractory, ceramics and construction and other applications. In addition to this the development of crystal phases and ...

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Ferrochrome slag: A critical review of its properties, …

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27-33% SiO2, 15-25% Al2O3, 20-35% MgO, and 10-15% iron-chromium compounds. The high chromium content of FCS and the possibility of its leaching into the environment ...

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PRODUCTION, CHARACTERISTICS AND USE OF …

2.3 Use of ferrochrome slag products The ferrochrome slag products are chemically very stable. They are used in civil engineering and road con-struction and also, to some extent, producing refractory ma terials. Granulated slag is also used as subsurface drainage material. The ferrochrome slag products are quality assured and CE mark ed ...

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Hexavalent chromium removal by ferrochromium slag

Ferrochrome slag (FS) and tundish slag (TS) are two typical slags containing high contents of Cr2O3 (3.88 wt.%) and MnO (18.69 wt.%), respectively. In this study, batches of ceramics were prepared ...

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Comprehensive Characterization of Ferrochrome Slag and …

In a nutshell, this study provides a thorough and critical examination of ferrochrome slag and ferrochrome ash's suitability for construction, as well as a list of the major …

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Ferrochrome slag: A critical review of its properties

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27-33% SiO 2, 15-25% Al 2 O 3, 20-35% MgO, and 10-15% iron-chromium compounds.The high chromium content of FCS and the possibility of its leaching into the …

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Ferrochrome slag: A critical review of its properties, …

DOI: 10.1016/j.jenvman.2022.116674 Corpus ID: 253727256; Ferrochrome slag: A critical review of its properties, environmental issues and sustainable utilization. @article{Das2022FerrochromeSA, title={Ferrochrome slag: A critical review of its properties, environmental issues and sustainable utilization.}, author={Shaswat Kumar Das and A. K. …

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(PDF) Up-Concentration of Chromium in Stainless Steel Slag …

The fraction with the highest Cr co ntent (11 ... Results suggest ferrochrome slag's feasibility as an aggregate raw material for refractory materials up to temperatures of 1200 °C in air and ...

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The Effect of the MgO Content of Slag on its Penetrability …

The purpose of a ferro-chrome converter (hereafter abbreviated as CRK) is to remove silicon as well as part of carbon from the molten ferro-chrome by blowing oxygen into the melt.

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Ferrochrome slag: A critical review of its properties

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS …

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Release behaviour of chromium from ferrochrome slag

Huge amount of ferrochrome slag, a solid waste is being generated from submerged electric arc furnace during manufacturing of ferrochrome alloy. The waste slag contains about 6–12% chromium as chromium oxide and it has the potentiality of releasing hazardous chromium compounds. Although chromium exists in the slag as highly immobile Cr …

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Mineralogical characterisation and separation studies on …

When the co ntent . of -74 µm fraction incre ased from 83.96% to 95.73%, the recovery of Cr 2 O 3 at 0.34 T magnetic intensity . ... Low carbon ferrochrome slag (LCFS) is the metallurgical waste ...

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Study on the properties of alkali-activated ferrochrome slag …

To solve the treatment challenges of ferrochrome slag (FS), a green ferrochrome slag cemented paste backfill materials (FS-CPB) composed of FS, desulfurization gypsum (DG) and granulated blast furnace slag (GBFS) was proposed in the study. The setting time, slump, uniaxial compressive strength (UCS), microstructure and leaching behavior of FS ...

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CHARACTERIZATION OF FERROCHROME SMELTER SLAG …

Slag samples from a ferrochrome smelter were analyzed using an XRF powder pellet analytical technique in contrast to the rep technique used at the plant laboratory, to determine their …

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Review Ferrochrome slag: A critical review of its properties

The utilization of ferrochrome slag as a solid waste resource holds significant potential for reducing environmental impact and promoting sustainable practices. This review …

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Chemical Composition of Ferrochrome Slag Aggregate

Indian standard 383 (1970) recommended a maximum limit of 50% by weight for the aggregates used in concrete. Table 5 represents the chemical compounds of ferrochrome slag aggregate tested in this ...

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Characteristics of ferrochrome slag aggregate and its uses …

On the inclusion of steel slag as an aggregate in concrete, it was observed in different studies [7][8][9] that the residual mechanical properties of the slag concrete after being exposed to ...

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Design of a ferrochrome – slag mechanical separator case …

The densities of ferrochrome and slag are 6800 kg/ m3 and 2800kg/ m3 respectively hence gravity separation method in water medium can be done. Concept 1 Diaphragm pulsed separation.

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