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After alloy recovery, air-cooled slag of 10–20 mm size is produced, which has been utilized as coarse aggregate by numerous researchers . Ferrochrome slag that has been water-cooled is present in granulated form with grain sizes that are similar to natural sand. ... Ferrochrome slag and ferrochrome ash can be effectively used as …
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 …
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical …
In this study, the recovery of Mg from ferrochrome slag was investigated using hydrochloric acid (HCl) as the lixiviant at low temperatures. Previous studies have …
Recycling and efficient utilization of the large volumes of slag generated by ferrochrome production process is a huge challenge for ferrochrome producers. This …
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 …
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) …
In this study, the recovery of Mg from ferrochrome slag was investigated using hydrochloric acid (HCl) as the lixiviant at low temperatures. Previous studies have shown that various metal oxides have been proven to be more amenable to leaching using HCl. This study examined the effects of acid content, leaching temperature, and reaction …
The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentrations of water contacted with ferrochromium slag (W/FS = 10) in a closed cycle after 50 batches were found as 0.61 mg/l. Also, reduction of Cr(VI) to Cr(III) and a …
the role of slag in smelting and alloy recovery is reviewed in this paper. 1. INTRODUCTION World high carbon ferrochrome production, charge chrome and HCFeCr, was 6.0 million tonnes in 2005. ... The ferrochrome slag products are granulated slag as well as classified slag products made by crushing and screening. The main part of slag …
After alloy recovery, air-cooled slag of 10–20 mm size is produced, which has been utilized as coarse aggregate by numerous researchers . Ferrochrome slag …
DOI: 10.1016/j.heliyon.2022.e12176 Corpus ID: 254530629; Magnesium recovery from ferrochrome slag: kinetics and possible use in a circular economy @article{Moyo2022MagnesiumRF, title={Magnesium recovery from ferrochrome slag: kinetics and possible use in a circular economy}, author={Langa Bright Moyo and …
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 …
The most common recovery process is to crush the slag (in the case of the first slag-handling method) and recover the alloy particles in a wet jigging process. In particular …
In this study, the recovery of Mg from ferrochrome slag was investigated using hydrochloric acid (HCl) as the lixiviant at low temperatures. Previous studies have …
Ferrochrome slag had been successfully implemented by us as conventional castables (25 wt.% slag + 75 wt.% Al 2 O 3) for non-recovery coke oven door at VISA Steel Ltd. This door completed 90 cycles successfully without any repair.
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 valasa, Visakhapatnam Dt.) has been carried out following extraction with benzene solutions of TOAO(0.01M). Maximum extraction efficiency was achieved at …
The beneficiation techniques could only marginally enrich the ferrochrome values because of the complex association of the metallic phase with the slag forming phases. Results for Mozley separator ...
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 ...
The high recovery of phosphorus of 89.6% indicates that ferrochrome slag can be an adequate magnesium source for struvite precipitation. The investigated parameters (pH; N:P; Mg:PO 4 ) showed that they all have a significant impact on the phosphorus recovery deduced from the ANOVA which had all p values < 0.05.
Introduce Ferrochrome Slag Processing in Zimbabwe IMAG0153. This program is formulated according to the specific nature of ferrochrome smelting slag, and integrates crushing, screening, jigging, dewatering and other processes to treat ferrochrome smelting slag, so as to finally achieve the purpose of recovering ferrochrome alloy from …
Ferrochrome smelting slag recovery solution is mainly to recover the valuable ferrochrome alloys from the slag in a forms that will be as far as possible directly saleable. This solution is now producing saleable ferrochrome containing less than 2% slag at a recovery of over 90% of liberated metal. For this solution, not only the smelting alloy ...
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 …
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 …
The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentrations of water contacted with ferrochromium slag (W/FS = 10) in a closed cycle after 50 batches were found as 0.61 mg/l. Also, reduction of Cr(VI) to Cr(III) and a …
The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag.
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical …
extraction efficiency was achieved at pH 2.5M in presence and absence of impurities associated with ferrochrome slag. The results obtained in the present study are compared with synthetic as well as slag samples (as per the specifications of manufacturers). Key words: Ferrochrome slag, Jindal Ferro alloys, TOAO.
Chromium was successfully separated from synthesized stainless steel slag (CaO–SiO2–MgO–Cr2O3) through the addition of waste silicon powder and CaF2. Waste silicon powder shows a promising and environmentally friendly reductant, compared to carbon, achieving the transformation of chromium from stainless steel slag to dispersed …
Ferrochrome (FeCr) is the main source of chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless steel, which owes its corrosion resistance mainly to the presence of Cr. In turn, stainless steel is mainly produced from Cr-containing scrap …
In this study, the recovery of Mg from ferrochrome slag was investigated using hydrochloric acid (HCl) as the lixiviant at low temperatures. Previous studies have shown that various metal oxides have been proven to be more amenable to leaching using HCl. This study examined the effects of acid content, leaching temperature, and reaction …
Download Citation | 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 ...
Furthermore, the slag from the smelting furnace often tends to be viscous and retains particles of the metal of the order of 1–2%. The dump at the ferrochrome plant, Bamnipal, containing valuable ferrochrome justified the construction of a "metal from slag recovery plant", if a suitable process could be developed.
Studies were carried out at R&D, Tata Steel to develop a flow sheet for the recovery of metal from metal–slag mix generated in its charge chrome (ferrochrome with 50–60% chromium) plant, Bamnipal. The studies showed that in the case of the charge chrome plant, crushing of mixed metal and slag to below 10 mm followed by jigging of …
NEW CASTLE, Del., Aug. 19, 2019 /PRNewswire/ -- EESTech (OTC: EESH) - EESTech's Environmental Impact Assessment (EIA) process for the Samancor Ferrochrome slag reclamation project has commenced with the appointment of EkoInfo (), a highly respected South African Environmental & Wildlife Management Consultancy. …
Chromium, recovery, ferrochrome slag, adsorption, zeolite: INTRODUCTION: Slag is a solid waste laden with heavy metal carrying chromium compounds imparts many problems to the environment. The waste disposal of chromium in air will eventually settle and end up in waters and soils. The ingestion of Chromium in ground water and surface water ...
Notes: 1. Services (Installation, Test Run, Training): The supplier can provide basic drawings and schematic drawings of equipment installation. The domestic technicians will be provided for free to guide installation and debugging, and the buyer will provide technicians with room and board. The buyer shall prepare necessary auxiliary …
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 ...
probable that when the percent metallic recovery is added to the percent slag recovery it will total over . This is due to the material picking up carbon from the graphite crucible during the process. A deduction is made to the amount of slag recovered based on the ferrochrome content after the chrome content of the slag is analyzed.