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In stainless steel production, slag from argon oxygen decarburization (AOD) converters is dumped on to the ground and then slowly cooled. The slag undergoes phase transformation from dicalcium silicate (C2S) to dicalcium silicate (C2S) at approximately 500 #176;C to 450 #176;C, resulting in slag volume expansion, disintegration, and dust generation.
20/10/2010#0183;#32;This paper examines the main results of an accelerated carbonation treatment applied to different types and size fractions of stainless steel slag. The objectives of this work were essentially to assess the CO2 uptake achievable by each type of slag under mild operating conditions and to investigate the effects of carbonation on the mineralogy and leaching behaviour of the residues.
A good slag practice is essential for production of a highquality stainless steel. In addition, the electrical and material efficiency of the electric arc furnace (EAF) can considerably be improved by a good slag practice. The metallurgical properties of the slag are strongly influenced by its hightemperature microstructure. Thus, characterization of the phases within the EAF slag as well as
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Keywords:Steel slag; stainless steel slag; mineralogy; morphology; activity index. I. INTRODUCTION The modern Chinese economy and trade continues to be a determining factor for the production of main construction materials. According to the Geological Survey, Mineral Commodity Summaries, February 2015, China accounted for 60% of the billion tons of cement produced in the world in
23/09/2020#0183;#32;Modern stainless steel includes chromium at a level of at least per cent This picture shows slag adhering to the side of a piece of a crucible. It was found at the site of Chak, in Fars
China: The Ministry of Ecology and Environment has accused the Gaoyi Iron and Steel Company in Yuncheng in Shanxi province of illegally and dumping steel slag over a 10 year period. The ministry has named the steel producer as part of an initiative to name and shame industrial polluters, according to Reuters. The steel producer was ordered in 2013 to build a slag treatment yard but it failed
The slag system for ingot drawing electroslag remelting superaustenitic stainless steel adopts a fiveelement slag system and is characterized in that the fiveelement slag system comprises the following components in percentage by weight: 4055% of CaF2, 1525% of Al2O3, 2030% of CaO, 23% of MgO and 58% of SiO2. The slag system overcomes the defects of the prior art, solves the problems
Figure 25: Schematic of stainless steel production process and slag generation points..... 10 Figure 26: Flowsheet of ferrochrome production process..... 12 Figure 27: Flowsheet of ferromanganese alloy production and slag generation points.. 12 Figure 28: Slag generation points in production of nonferrous metals [4].. 16 Figure 29: Schematic diagram of jigging operation[67
Search results for: stainless steel slag. 1335 Thermodynamics of Chlorination of AcidSoluble Titanium Slag in Molten Salt for Preparation of TiCl4. Authors: Li Liang. Abstract: Chinese titanium iron ore reserves with high calcium and magnesium accounted for more than 90% of the total reserves, and acidsoluble titanium slag which is produced by titanium iron ore always used to produce
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