Tire Integrated Mobile Crusher

Reduction of steel-making slag for recovery of valuable

In previous studies, the carbothermic reduction of slag was described as recovering Cr and/or Fe from stainless steel slag, hot metal dephosphorization slag, and other steel making slag [12][13 ...

Separation of valuable elements from steel making slag by

2020-7-1  Most of the Fe in the slag was volatilized by chlorination up to 1000 °C, independently from the type of slag. Moreover, it was possible to volatilize most of the Ti and approximately 40% of the Mg by chlorination at 1000 °C for 60 min. That is, Fe and Ti were completely separated from the slag by chlorination.

Separation and recovery of V, Ti, Fe and Ca from acidic

This process realizes the resource utilization of acidic wastewater and vanadium-bearing steel slag, and the recovery rates of V, Ti, Fe and Ca were 98.90%, 98.11%, 99.37% and 99.52%, respectively. CRediT authorship contribution statement. Jinrong Ju: Investigation, Data curation, Writing - original draft, Writing - review editing.

Phosphorus Separation and Recovery from Steelmaking

2018-5-26  P is unevenly distributed in steelmaking slag and generally concentrated in the 2CaO・SiO 2 phase as a 2CaO・SiO 2 -3CaO・P 2 O 5 solid solution. This evidence reveals the potential to separate P from steelmaking slag. In this chapter, various technologies for P separation and recovery from steelmaking slag

Reduction of steel‐making slags for recovery of valuable

2003-1-15  The slag products include a metallurgical powder for desulfurization of steel, hydraulic binder and slag stones for construction applications. The metals obtained are rich in Fe, Mn, V and Cr depending on the treated slag and residues. The environmental compatibility and mechanical properties of the slags have been improved after slag reduction.

An overview of recovery of metals from slags - ScienceDirect

2003-1-1  Steel slag is produced from Basic Oxygen Furnace (BOF steel slag) and Electric Arc Furnace (EAF steel slag) in the steel making. They are about 10–15% by weight of the steel output (Proctor et al., 2000).Each year, a great amount of steel slag is produced in the different countries, as shown in Table 1.

Metal Recovery and Crushing Plants Harsco Environmental

2021-9-14  Designed to recover trapped metal from crushed slag, our custom-designed metal recovery (MR) plants ensure you can reuse materials in the steelmaking process. Custom-designed for each application, our slag processing plants keeps the maximum environmental impact in mind. At our Metal Recovery Plant, a crushing and magnetic separation process is ...

Enrichment of Fe‐Containing Phases and Recovery of Iron

2012-1-13  To recover the metals from steel slag, two types of BOF slags were remelted at 1873 K. The liquid slags were cooled using four types of cooling conditions, namely, water granulation, splashing, air cooling, and furnace cooling, to investigate the influence of cooling rate on mineral components, especially the enrichment behavior of Fe ...

(PDF) An overview of treatment of steel-making slag for

The results have shown 70-75% recovery of metallic values from slag whereas phosphorus removal varied in the range of 65-95%. Inall the tests, P content of recovered metal is very

Enhanced Recovery Process of Calcium Oxide and Metals

2017-7-1  The iron and steel making (ISM) industry is one of the largest CO 2 emitters in the world. Despite a sustained global research effort, utilization of best available technologies will not result in CO 2 reductions for the industry that are sufficient to meet the Paris Climate Agreement. One area of the ISM process that still contains a large untapped potential for CO 2 reduction is the ...

Enrichment of Fe‐Containing Phases and Recovery of Iron ...

2012-1-13  To recover the metals from steel slag, two types of BOF slags were remelted at 1873 K. The liquid slags were cooled using four types of cooling conditions, namely, water granulation, splashing, air cooling, and furnace cooling, to investigate the influence of cooling rate on mineral components, especially the enrichment behavior of Fe ...

Development of Heat Recovery System from

2019-4-3  slag is being formed rises by approximately 30°C. Since this is within the design range of 70°C or less, the designed cooling capacity can be obtained. 3. Development of Slag Heat Recovery Process 3.1 Design of Slag Heat Recovery Pilot Plant The slag heat recovery pilot plant which was built in this development is a counterflow packed bed ...

Method for recovering metals included in the slag ...

A method for recovering useful metal included in slag generated from steel-making process in a convertor. The method comprises the steps of atomizing the slag in water, screening the atomized slag so as to be classified by sizes, dropping the classified slag of similar sizes into a flow of blowing air to sort it into a high-weight group and a low-weight group, and transferring the high-weight ...

Recovery of Manganese From Steel Plant Slag by

r ----- RECOVERY OF MANGANESE FROM STEEL PLANT SLAG BY CARBAMATE LEACHING By Synthia N. Mcintosh 1 and Elizabeth G. Baglin2 ABSTRACT The U.S. Bureau of Mines investigated the feasibility of using ammonium carbamate (NH2C02NH4) leaching to recover manganese from steel plant slag.

METAL RECOVERY FROM MUNICIPAL SOLID WASTE

2013-4-9  The study was based on the metal recovery system developed by AFATEK and treating BA produced at six municipal solid waste incinerators in Denmark. The system present a section for Fe metals recovery and a section for NFe metals recovery respectively followed by upgrading systems of the recovered fractions. In the Fe recovery system the

What is the relation between FeO and Fe2O3 in steel

Slag is the most important by-product in iron and steel production and is used in several applications, e. g. in the construction industry, and substitutes by this means natural materials.

Steel Slag - Material Description - User Guidelines for ...

2016-3-8  Steel slag can normally be obtained from slag processors who collect the slag from steel-making facilities. Slag processors may handle a variety of materials such as steel slag, ladle slag, pit slag, and used refractory material to recover steel metallics.

Steelmaking Slag Beneficiation by Magnetic Separator

2018-12-15  steel making and is produced during the separation of the molten steel from impurities in steel making furnaces. That is, the slag occurs during steel making in liquid state. It is a complex solution of silicates and oxides that solidifies during cooling [4, 18]. The oxygen blowing into the convertor causes the oxidation and removal of undesired

Preparation of high purity nano silica particles from ...

2010-10-27  the main product, steel [3]. Slag accounts for about 80% of solid state by-products and wastes, whereas the remainder is composed of dust and sludge. Generally, slag produced in steel mills is divided into blast-furnace slag (referred to as “blast slag” hereafter) pro-duced in the blast furnace process and steel-making slag produced

PRODUCTION, CHARACTERISTICS AND USE OF

2015-5-22  ity of slag is a function of the pressure and temperature. The viscosity also has an essential meaning in the separation of slag and metal. The viscosity of the fe rrochrome slag will increase when the content of SiO 2 and Al2O3 rise in which case aluminum-silicon chains also grow. An example of base slag values close to the fer-

Development of Heat Recovery System from Steelmaking

2019-4-3  slag is being formed rises by approximately 30°C. Since this is within the design range of 70°C or less, the designed cooling capacity can be obtained. 3. Development of Slag Heat Recovery Process 3.1 Design of Slag Heat Recovery Pilot Plant The slag heat recovery pilot plant which was built in this development is a counterflow packed bed ...

Method for recovering metals included in the slag ...

A method for recovering useful metal included in slag generated from steel-making process in a convertor. The method comprises the steps of atomizing the slag in water, screening the atomized slag so as to be classified by sizes, dropping the classified slag of similar sizes into a flow of blowing air to sort it into a high-weight group and a low-weight group, and transferring the high-weight ...

Recovery of metal values from copper slag and reuse of ...

Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (e.g., Fe, Cu and Mo) into the iron-rich alloy product which can be a feed material for steel making. On the other hand, the non-metallic residue, the secondary slag, can be used in the Limestone and ceramic industries.

METAL RECOVERY FROM MUNICIPAL SOLID WASTE

2013-4-9  The study was based on the metal recovery system developed by AFATEK and treating BA produced at six municipal solid waste incinerators in Denmark. The system present a section for Fe metals recovery and a section for NFe metals recovery respectively followed by upgrading systems of the recovered fractions. In the Fe recovery system the

Technical Report UDC 669 . 184 . 28 - Nippon Steel

2015-7-27  NIPPON STEEL SUMITOMO METAL TECHNICAL REPORT No. 109 JULY 2015-184-Pb and Zn in the form of sulfides. Then the pH is increased from 8 to 12 to recover Fe and Ca in the form of hydroxides (raw materials for cement). In this case, however, Fe and Ca are not separated (Fig. 1). 3. Purpose and Methods of Recycling Ca and Fe Contained in Slag

Lecture 6: Steel Making Reactions: Oxidation of Iron and ...

2017-8-4  • FeO content of slag and oxygen content of steel • Loss of iron in slag and hence affects productivity • Oxidation potential of slag In addition to the above FeO al so helps in dissolution of lime in slag. Consider the reaction [Fe] + [O] = (FeO) The equilibrium con stant K Fe is K Fe =

Steelmaking Slag Beneficiation by Magnetic Separator

2018-12-15  steel making and is produced during the separation of the molten steel from impurities in steel making furnaces. That is, the slag occurs during steel making in liquid state. It is a complex solution of silicates and oxides that solidifies during cooling [4, 18]. The oxygen blowing into the convertor causes the oxidation and removal of undesired

TOWARDS RED MUD VALORISATION: EAF SMELTING

2019-4-18  The Fe recovery to the metal was in excess of 95%. Despite the favourable reducing conditions in the smelting step, low Si and Ti are reported to the metal. This could be due to good control of the smelting process i.e. consistent operating temperature at 1500°C and under a reducing potential for selective recovery of Fe under favourable slags.

Suitability of Steel Making Slag as a Construction ...

2021-7-16  One of the largest problems facing the steelmaking industry is the high amount of waste currently produced and the low amount of waste that is currently recycled. This study aims to look at the suitability of 3 different samples of basic oxygen steelmaking (BOS) slag as a construction material, in concert with their carbon capture capacity. Characterization by scanning electron microscopy (SEM ...

Geochemical Characterization of Iron and Steel Slag and ...

The steel slag (AMSteelC) and slag from two legacy sites (ILSS2, ILSS5) contained slightly less C with concentrations that ranged from 1.5 to 2.7 wt. % C. Carbonate C was highest in ILSS2 at 2.3 wt. % C, and accounted for the majority of the C in the sample.