The heat treatment and cooling rate of slag during post-smelting operations in ferrochromium production have a significant effect on the crystallization of different phases in the slag. ... (2018) Direct production of ferrochrome by segregation reduction of chromite in the presence of calcium chloride. Metals 8:69. Article Google Scholar Sahu N ...
The FCS, which is the subject of the study, was obtained from the Elâzığ ferrochrome factory and as 1 kg of slag waste is generated for every 3 kg of ferrochrome during the production of ...
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 …
ferrochrome slag as a controlled low-strength structural fill material, International Journal of Geotechnical Engineering, DOI: 10.1080/19386362.2018.1448527 To link to this article: https://doi ...
This paper outlines the physicochemical properties of stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag. The current treatment technologies of chromium-containing ...
High carbon ferrochrome slag is a byproduct of High Carbon Ferrochrome (HCFeCr) production in submerged arc furnaces. The slag is conventionally tapped from the furnaces and granulated before ...
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 …
Slag temperatures of upto 1650 deg C always result to C content of 7 % to 8 % in the Fe-Cr. Only if the MgO content of the ore is high and the slag temperatures exceed 1700 deg C then the C content is in the range of 4 % to 6 %. ... however, a number of charge pre-treatments which can be utilized in order to improve the furnace stability and ...
Overall, the findings demonstrate that metallurgical ferrochrome slag can replace 20-30% of sand or clay in cement-based and fired clay bricks, respectively, and the risk of …
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. …
Ferrochrome ash (FCA), which is a waste collected at the baghouse filters of the ferrochrome production process, is generated at a rate of 0.02-0.03 tons per ton of ferrochrome production, and is ...
stainless steel slag, ferrochrome dust, and ferrochrome slag. The treatment of chromium- containing metallurgical solid wastes has always been a topic of interest for researchers,
Characteristics of ferrochrome slag aggregate and its uses as a green material in concrete – A review. Author links open overlay panel Ali Issa Fares, KMA Sohel, K Al-Jabri, Abdullah Al-Mamun. ... ceramic and refractory productions, and the hazardous hexavalent chromium treatment was discussed. A brief review of the utilization of FCS in ...
In this research, composite cementitious materials are prepared which use low carbon ferrochrome slag and granulated blast furnace slag (GBFS) as the main raw material. …
Recovery of chromium from ferrochrome slag is 64% by treatment of slag with lime at 973K in solid phase. The soluble chromium ion was extracted with water. The chromium from liquid extract is separated with fly ash based zeolite which has 3000 mmol/gram and it can be regenerated to recover chromium. REFERENCES 1.
The ferrochrome smelting slag treatment plan is a summary of the practical experience of Ferrochrome smelting slag at home and abroad in the past 30 years. In order to maximize the profit of the recovery and treatment of ferrochrome slag, we have carried out many practices and finally successfully developed this program. It can separately ...
Ferrochrome (FeCr) slag was milled and stabilised with either ascorbic acid or phosphoric acid. The stabilised FeCr was then geopolymerised with 1 M KOH in order to obtain a monolith with at least ...
Ferrochrome slag is a by-product of the production of ferro-chrome alloy, an essential component in stainless steel. The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately 8–12% of chromium oxide is generated per ton of hot metal (Jena and …
This paper outlines the physicochemical properties of stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag. The current treatment technologies of chromium-containing ...
At the next stage of our work, we plan to work out in detail the parameters affecting the vacuum-heat treatment of ferrochrome. We assume that ferrochrome with a carbon content of 0.00x% can be obtained. ... Development of technology for the production of refractory products from hose dust and high-carbon ferrochrome slag. Teor Tekhn Met Proizv ...
classified ferrochrome slag as hazardous waste and therefore, the majority of ferrochrome slag has been disposed of onto slag dumps in South Africa. Due to the leaching potential of ferrochrome slag dumps, this has the potential to cause environmental degradation in the event that these disposal facilities are not correctly engineered and operated.
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 ...
The treatment plan of ferrochrome smelting slag comprehensively adopts the processes of crushing, screening, jigging, and dewatering. First, coarse crushing is used to crush a large piece of ferrochrome smelting slag in …
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
appropriate extensive treatment to the slag to liberate part of these elements in oxide form which can be recovered by electrocoagulation (EC). ... (0.82% of Cr), low carbon ferrochrome slag (LC FeCr) (1.10% of Cr) and high carbon ferrochrome slag (HC FeCr) (11.21% of Cr). EAFC, EAFS, HC FeCr slags had grain size <1 mm while
Semantic Scholar extracted view of "The recovery of ferrochrome from slag at Zimasco" by H. P. Mashanyare et al. ... Treatment of Cr(VI)-containing wastes in the South African ferrochrome industry - a review of currently applied methods. J. Beukes P. Zyl M. Ras. Chemistry, Environmental Science.
Use of Ferrochrome slag (FCS) as alternative aggregates in concrete was reviewed. Material properties of FCS were summarized and compared with natural aggregate. …
Ferrochrome slag is a by-product generated during the extraction of ferrochrome whereas ferrochrome ash is a by-product of the ferroalloy industry. FCA is the dust produced …
ABSTRACT The ferrochromium slag is an important by-product of ferrochromium industries. 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 …
Experience is reflected for application and prospective areas are considered for utilization of ferrochrome slag. ... and the specific expenditure of electrical energy for melting and sub-sequent mechanical treatment of an ingot or block (crushing, refining). The cost of domestically produced fuzed spinel exceeds 30 thousand rubles a ton.
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