Recycling of Vanadium-Containing BOF Slag with Agitation,
11-01-2022· This article describes one of the solutions to the problem associated with the utilization of metallurgical wastes and presents a high-efficiency method for recycling a large amount of vanadium-containing BOF slag with heap leaching by sulfuric acid. The leaching degree of vanadium from vanadium-containing BOF slag was 98.5 pct by agitation leaching
The recycling effect of BOF slag in the portland cement,
01-12-2017· in this context, the goal of recycling bof slag is to minimize the amount of waste sent to landfill, concerning the reduction of the occupied areas and the cost of maintaining these areas; the recovery of iron in the bof slag and the reduction of natural resource extraction by substituting some raw materials in other industrial sectors, as shown
Slag recycling - recovery
The Waste Framework Directive 2008/98/EC also regulated the recycling of iron and steel slags. Fig. 6 shows the recycling of blast furnace slag for 2018. The production volume was 20.7 Mta, of which 86.0 % was sand slag from slag
ITP Steel: Recycling and Reuse of Basic Oxygen Furnace,
project fact sheet recycling and reuse of basic oxygen furnace (bof)/basic oxygen process (bop) steelmaking slags new technologies and methodologies may allow value- added utilization of steelmaking slag thus reducing waste and use of landfills, and saving energy office of industrial technologies energy efficiency and renewable energy • u.s. department of energy
The recycling and reuse of steelmaking slags — A review,
01-07-2019· Electric arc furnace (EAF) steelmaking, another form of secondary steelmaking also produces slag as a by-product. BOF and EAF slags are generically known as steelmaking slags. BOS slag is also known as BOF (basic oxygen furnace) slag, and the choice of acronym depends on the source material; however, herein we will use BOS as a default.
[PDF] The recycling and reuse of steelmaking slags — A,
01-07-2019· Slag waste from the steelmaking industry is generated in high amounts, so its reuse and recycling technologies are matters of industrial and academic interest. To get information for seeking new… Hazardous characteristics and variation in internal structure by hydrodynamic damage of BOF slag-based thin asphalt overlay.
Recycling and environmental issues of metallurgical slags,
BOF slag, and the SMP slag is relatively less significant in terms of utilization due to the lower generated amount. Roughly BOF slag,, slurry), and thus increase the load of salt slag recycling. Keywords: recycling, environment, metallurgy, slags, fluxes, salts. 350 MOLTEN SLAGS FLUXES AND SALTS used in road construction in Roman times.
Chapter Treatments and Recycling of Metallurgical Slags
EAF slags present great possibilities of recycling, similar to those of BOF slags. Slags recycling in cement production, road buildup, or other applications (that involve soil contact) are subjected to important environmental requirements. The material must not present reactions or composition changes greater than 1% in a period of 100 years.
INNOVATIVE SOLUTIONS FOR RECYCLING OF BY- PRODUCTS*
fines and up to 25% for BOF-slag. Slags are being widely recycled and used in the cement industry, as is the case for BF slag, and in the construction industry in the case of BOF slags and EAF slags. However, value of BOF unmodified slag is typically low and environmental regulations limit the usage of the unmodified BOF slag.
Recycling of ladle furnace slags | Request PDF
The current work is useful for harmless processing and recycling of the BOF slag on a large scale. Read more. Article. Ways of increasing the recycling of metallurgical wastes.
Chapter Treatments and Recycling of Metallurgical Slags
Keywords: slag, recycling, steelmaking, refractory wear, slag properties 1. Introduction In modern steel plants, the emphasis is placed simultaneously on quantity and, BOF slags recycling practices Longer lifespans of BOF lining and greater availability result in a reduction of costs per ton of liquid steel.
Recycling and environmental issues of metallurgical slags,
BOF slag, and the SMP slag is relatively less significant in terms of utilization due to the lower generated amount. Roughly BOF slag,, slurry), and thus increase the load of salt slag recycling. Keywords: recycling, environment, metallurgy, slags, fluxes, salts. 350 MOLTEN SLAGS FLUXES AND SALTS used in road construction in Roman times.
Recycling of engineering characteristics of basic oxygen,
The researcher laid the treated BOF on Tai No.27 Line in Wangdan Township, Pingtung County. Six engineering methods are adopted, and separately they are: not treated (pure BOF), BF substitutes 100% fine grains of BOF and wet-binder, power plant bottom ash substitutes 100% fine grains of BOF and wet-binder, cement and bottom ash wet-binder, cement and fly ash wet
INNOVATIVE SOLUTIONS FOR RECYCLING OF BY- PRODUCTS*
fines and up to 25% for BOF-slag. Slags are being widely recycled and used in the cement industry, as is the case for BF slag, and in the construction industry in the case of BOF slags and EAF slags. However, value of BOF unmodified slag is typically low and environmental regulations limit the usage of the unmodified BOF slag.
Recycling of ladle furnace slags | Request PDF
The current work is useful for harmless processing and recycling of the BOF slag on a large scale. Read more. Article. Ways of increasing the recycling of metallurgical wastes.
Strategy Paper On Resource Efficiency in Steel Sector,
5.0 Recycling of Steel Slag, Furnace-Basic Oxygen Furnace (BF-BOF) route and Electric Arc Furnace (EAF) and /or Induction Furnace (IF) route. The BF-BOF route (primary sector) caters to around 45% of India’s steelmaking capacity, while the remaining 55%,
Influence of Ladle-slag Additions on BOF-Process Parameters
Furthermore, the recycling of ladle slag to the BOF will induce a three time utilisation of the lime added in secondary steelmaking. First during ladle refining, secondly as recycled slag to the BOF and thirdly as BOF slag recycled to the BF. Chapter 1 2 1.01 Basic Oxygen Steelmaking
Recycling of ladle furnace slags
A typical analysis of LF slag which had been used by this group of researchers is shown in table 1. The synthetic slag employed was a coarse blend of 40% recycled LF slag, 40% high calcium lime and 20% dolomite lime. The raw LF slag had transported to a plant where the raw LF slag was separated. The non-magnetic fraction of 8-80 mm size, was,
Recycling Ladle Furnace Slag as Flux in Steelmaking: A,
16-09-2019· LF slag recycling was tested at JSW Steel, Vijayanagar Works, India by means of Al-killed ladle furnace slag as a replacement to synthetic slag. The recycling process was carried out in two steps. Even though the composition of LF slag is similar to calcium-aluminate-based synthetic slags, composition of dump slag varied due to the addition of silica-based
Recycling of steel plant by-products by cold bonded,
Recycling of steel plant by-products by cold bonded briquetting Ahmed Abdelrahim Master’s Degree Programme, ensimmäisessä vaiheessa tutkittiin BF- ja BOF-liejujen käytön vaikutusta brikettien, 3.4 Slag and Slag Tailing,
Recycling & Reuse of BOF - BOP SM Slags (Program Document,
01-01-2002· Recycling & Reuse of BOF - BOP SM Slags. Full Record; Other Related Research; Abstract. New Technologies and Methodologies May Allow Value-Added Utilization of Steelmaking Slag Thus Reducing Waste and Use of Landfills, and Saving Energy. Publication Date: Tue Jan 01 00:00:00 EST 2002
INNOVATIVE SOLUTIONS FOR RECYCLING OF BY- PRODUCTS*
fines and up to 25% for BOF-slag. Slags are being widely recycled and used in the cement industry, as is the case for BF slag, and in the construction industry in the case of BOF slags and EAF slags. However, value of BOF unmodified slag is typically low and environmental regulations limit the usage of the unmodified BOF slag.
Recycling of ladle furnace slags | Request PDF
The current work is useful for harmless processing and recycling of the BOF slag on a large scale. Read more. Article. Ways of increasing the recycling of metallurgical wastes.
Abstract - chc.tw
industry, this Manual may also provide relevant technical reference data of BOF slag recycling applied to marine works, which can benefit the government in promoting economic recycling policies and ensuring the quality of public works. III Contents Page
Strategy Paper On Resource Efficiency in Steel Sector,
5.0 Recycling of Steel Slag, Furnace-Basic Oxygen Furnace (BF-BOF) route and Electric Arc Furnace (EAF) and /or Induction Furnace (IF) route. The BF-BOF route (primary sector) caters to around 45% of India’s steelmaking capacity, while the remaining 55%,
Basic Oxygen Furnace Steelmaking - Steel Technology
Basic Oxygen Furnace (BOF) steel making or Basic Oxygen Furnace Steelmaking (BOS) or Linz-Donawitz-Verfahren steelmaking or the oxygen converter process is a method in which both molten pig iron and steel scrap are converted into steel with the oxidizing action of oxygen blown into the melt under a basic slag.
Recycling Ladle Furnace Slag as Flux in Steelmaking: A,
16-09-2019· LF slag recycling was tested at JSW Steel, Vijayanagar Works, India by means of Al-killed ladle furnace slag as a replacement to synthetic slag. The recycling process was carried out in two steps. Even though the composition of LF slag is similar to calcium-aluminate-based synthetic slags, composition of dump slag varied due to the addition of silica-based
Recycling of steel plant by-products by cold bonded,
Recycling of steel plant by-products by cold bonded briquetting Ahmed Abdelrahim Master’s Degree Programme, ensimmäisessä vaiheessa tutkittiin BF- ja BOF-liejujen käytön vaikutusta brikettien, 3.4 Slag and Slag Tailing,
Progresses and Future Prospects of Steelmaking Technologies
BOF and secondary refining processes, and expanding iron source utilization by increasing the heating margin. In slag and refractories, slag reuse techniques, recovery of sensible heat from hot slag, and iron and phospho-rous recovery techniques were developed and put to practical use. In casting, stable high-speed casting and
Analysis of Metallurgical Processes and Slag Utilisation,
BOF slag Mn slag Coke Coal injection 0.1% 4.5% 94.5% 0.9% Scrap Burnt lime Dolomitic lime Iron ore pellets Figure 1. Sources of MgO in the BF Figure 2. Sources of MgO in the BOF The main sources of magnesium oxide to the blast furnace, illustrated in Figure 1, are iron ore pellets, by-product briquettes, recycled BOF slag and limestone.
