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slag iron slag disposal

How is slag disposed of? – Mvorganizing

2021-1-29  While most of the furnace slag is recycled for use as an aggregate, excess steel slag from other operations (raker, ladle, clean out, or pit slag) is usually sent to landfills for disposal. Steel slag can normally be obtained from slag processors who collect the slag from steel-making facilities. Is furnace slag magnetic?

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US4666591A - Slag disposal method - Google Patents

A slag disposal method for disposing of slags produced in furnaces during iron or steel making processes comprises employing the steps of magnetic sorting of masses of crude slags of a size greater...

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Slag recycling - recovery

The terms blast furnace slag (BFS) and granulated blast furnace slag, as well as LD slag and electric furnace slag are used for finer distinctions. With high-quality iron ore grades with an iron content of 64 to 67 %, a blast furnace typically produces about 0.25 to 0.30 t of slag per t of pig iron.

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Mineral precipitation and dissolution at two slag-disposal ...

2003-8-26  Two slag-disposal sites were examined in northwestern Indiana where slag was deposited over the native glacial deposits. At a third site, where slag was not present, background conditions were defined. Samples were collected from cores and drill cuttings and described with scanning electron microscopy and electron microprobe analysis.

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CA1236810A - Slag disposal method - Google Patents

ABSTRACT OF THE DISCLOSURE Disclosed is a slag disposal method for disposing of slags produced in furnaces during iron or steel making process. The method comprises the steps of sorting masses of crude slags obtained from the furnaces into slags rich in iron and slags not rich in iron by magnetic sorting; and applying a compressive force to the slags rich in iron so as to cause a coarse ...

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Disposal of arsenic in copper discharge slags - ScienceDirect

2000-10-2  These experiments illustrate the difficulty of injecting iron arsenate powder into shallow slag baths. The slag samples taken during the first 5–8 min show great variation, with initial recovery as low as 35%. These low initial recoveries are due to the large fraction of the iron

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Economic and environmentally beneficial treatment of

2012-2-7  furnaces is produced where molten iron, ore, and scrap are refined with limestone as a flux for a long period, with fuel and air injection to heat and burn out carbon. The process is slow and obsolete, but many old slag disposal areas contain this slag. Basic Oxygen Furnaces (BOF, BOP, or LD) have scrap and molten iron charged along with ...

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The potential utilization of slag generated from iron- and ...

2019-10-29  Along with iron and steel production, large amount of slag is generated. Proper management on the iron- and steelmaking slag is highly demanded due to the high cost of direct disposal of the slag to landfill, which is the most adopted management approach.

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(PDF) Steel Slag and Waste Management - ResearchGate

2004-5-1  because of the incr eased number of environmental reg ulations that force minimizing waste disposal. Steel slag is a by -product of the steel industry. I t is formed as the lime flux reacts with...

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Influence of LD Slag on Iron Ore Sinter Properties and ...

2011-2-9  Steel plant slags mainly include, blast furnace slag and steel melting slag (LD process slag). LD slag is a byproduct of steel industry, which comes from pig iron refining using LD converters. The byproducts usually contain considerable quantities of valuable metals and materials. Most of the materials of steel plant wastes are recycled through sinter making in most of the countries. Because of its physical, chemical and mineralogical properties, it can be used as raw material in process like sintering. Recycling of LD slag has the highest cost implication on sintering process. LD slag contains high amount of CaO, iron, and MgO, thus recycling it through sintering process helps in the saving of flux and iron ore. The recycled wastes have some effect on sinter quality, strength and productivity. JSW Steel Limited is a 7.0 Mtpa integrated steel plant and produces 2000 to 2500 tons of LD slag per day. Laboratory pot grate sintering experimentation has been carried out to study the effect of LD slag addition on sinter productivity, and physical and metallurgical properties. The LD slag

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Slag disposal method - Kawasaki Jukogyo Kabushiki Kaisha

A slag disposal method for disposing of slags produced in furnaces during iron or steel making processes comprises employing the steps of magnetic sorting of masses of crude slags of a size greater than a value ranging between 300 to 500 mm obtained from the furnaces into slags rich in iron (above about 50 to 60 percent) and slags not rich in iron (below about 50 to 60 percent) and then ...

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CA1236810A - Slag disposal method - Google Patents

ABSTRACT OF THE DISCLOSURE Disclosed is a slag disposal method for disposing of slags produced in furnaces during iron or steel making process. The method comprises the steps of sorting masses of crude slags obtained from the furnaces into slags rich in iron and slags not rich in iron by magnetic sorting; and applying a compressive force to the slags rich in iron so as to cause a coarse ...

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How is slag disposed of? - treehozz

Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace. During the period of cooling and hardening from its molten state, BF slag can be cooled in several ways to form any of several types of BF slag products.

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Mineral precipitation and dissolution at two slag-disposal ...

2003-8-26  Slag is a ubiquitous byproduct of the iron- and steel-refining industries. In northwestern Indiana and northeastern Illinois, slag has been deposited over more than 52 km2 of land surface. Despite the widespread use of slag for fill and construction purposes, little is known about its chemical effects on the environment. Two slag-disposal sites were examined in northwestern Indiana where slag ...

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The potential utilization of slag generated from iron- and ...

2019-11-29  on the iron- and steelmaking slag is highly demanded due to the high cost of direct disposal of the slag to landfill, which is the most adopted management approach. In this article, the potential application of iron- and steelmaking slag has been reviewed, which included the slag utilization in construction as cement

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Mineral precipitation and dissolution at two slag-disposal ...

Slag is a ubiquitous byproduct of the iron- and steel-refining industries. In northwestern Indiana and northeastern Illinois, slag has been deposited over more than 52km2 of land surface.

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Recycling and environmental issues of metallurgical slags ...

2009-8-26  1–8%. The slag basicity from BOF slag is in the range of 3.5, which is higher than the basicity of EAF slags with a basicity of about 2.0. The SMP slags often have an even higher basicity of around 46. Steel slag is a secondary resource of raw material in metallurgical plant. It can be directly taken back to

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Effect of Power Plant Ash and Slag Disposal on the ...

2021-8-19  Thus, ash and slag disposal areas of power plants are open systems within the fenced area. Hazardous constituents of ash can migrate from the ash dump surface through the air and water action contaminate the atmosphere, soil, groundwater and surface water in areas located a few kilometers from the waste accumulator.

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Efficient removal of arsenic from copper smelting ...

2021-3-10  In this study, steel-making slag, as an in situ iron source and neutralizer for the disposal of high arsenic-containing wastewater, not only exhibits an excellent performance for the removal of arsenic, but also realizes the utilization potential of slag, which can efficiently reduce regent and operation costs.

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Influence of LD Slag on Iron Ore Sinter Properties and ...

2011-2-9  the LD slag is the main restricting factor for utilizing in the sinter making. To optimize the LD slag in sinter making trials have been planned in lab scale and varied the LD slag in the sinter mix from 0 to 60kg/t of sinter. Figure 2 shows the disposal of LD slag at slag yard. Fig. 2: Disposed LD slag at slag

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Mineral precipitation and dissolution at two slag-disposal ...

Slag is a ubiquitous byproduct of the iron- and steel-refining industries. In northwestern Indiana and northeastern Illinois, slag has been deposited over more than 52 km2 of land surface. Despite the widespread use of slag for fill and construction purposes, little is known about its chemical effects on the environment. Two slagdisposal sites were examined in northwestern Indiana where slag ...

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Mineral precipitation and dissolution at two slag-disposal ...

2003-8-26  Slag is a ubiquitous byproduct of the iron- and steel-refining industries. In northwestern Indiana and northeastern Illinois, slag has been deposited over more than 52 km2 of land surface. Despite the widespread use of slag for fill and construction purposes, little is known about its chemical effects on the environment. Two slag-disposal sites were examined in northwestern Indiana where slag ...

More

How is slag disposed of? - treehozz

Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace. During the period of cooling and hardening from its molten state, BF slag can be cooled in several ways to form any of several types of BF slag products.

More

CA1236810A - Slag disposal method - Google Patents

ABSTRACT OF THE DISCLOSURE Disclosed is a slag disposal method for disposing of slags produced in furnaces during iron or steel making process. The method comprises the steps of sorting masses of crude slags obtained from the furnaces into slags rich in iron and slags not rich in iron by magnetic sorting; and applying a compressive force to the slags rich in iron so as to cause a coarse ...

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Safe disposal of metal values in slag (Patent) OSTI.GOV

OSTI.GOV Patent: Safe disposal of metal values in slag. Safe disposal of metal values in slag. Full Record; Other Related Research

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Effect of Power Plant Ash and Slag Disposal on the ...

2021-8-19  Thus, ash and slag disposal areas of power plants are open systems within the fenced area. Hazardous constituents of ash can migrate from the ash dump surface through the air and water action contaminate the atmosphere, soil, groundwater and surface water in areas located a few kilometers from the waste accumulator.

More

Recycling and environmental issues of metallurgical slags ...

2009-8-26  1–8%. The slag basicity from BOF slag is in the range of 3.5, which is higher than the basicity of EAF slags with a basicity of about 2.0. The SMP slags often have an even higher basicity of around 46. Steel slag is a secondary resource of raw material in metallurgical plant. It can be directly taken back to

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Recycling Nickel Slag by Aluminum Dross: Iron-extraction ...

Nickel slag is a metallurgical solid waste from nickel refineries, which can be recycled as one of excellent secondary sources due to valuable iron contents. In this work, the approach of recycling nickel slag by aluminum dross was proposed, and the processes of network modification of slags and reduction were successively investigated at 1773 K.

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Sustainable Recycling of Electric Arc Furnace Steel Slag ...

2021-1-7  Steel slag is produced during the separation of molten steel from impurities in steel furnaces. The slag appears as a heterogeneous solution of silicon dioxide and calcium-iron oxides that solidify during cooling. These characteristics make it suitable for the substitution of aggregates in the construction sector,

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Harmless Disposal and Comprehensive Recovery of

【Abstract】 According to the material characteristics of cadmium waste slag,it obtained oxide dust which were the preconcentration of cadmium and other metal by roasting,The best process parameters also was obtained through the test.Detoxicated slag was processed by grinding and magnetic separation.The iron grade of rich iron slag was 56.27% and the iron grade of the poor iron slag was 30.7%.

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