Treatment of steel-making slag

Microwave treatment of slags: Case studies of Cr-bearing …

Yoshikawa, N., Chen, Y., Mashiko, K. I., Ishizuka, E., & Taniguchi, S. (2008). Microwave treatment of slags: Case studies of Cr-bearing steel making slag and Ti-bearing blast furnace slag Proceedings ICS 2008: The 4th International Congress on the Science and Technology of Steelmaking (pp. 650-653).(Proceedings ICS 2008: The 4th International Congress on the …

Comprehensive Analysis of Steel Slag as Aggregate for …

2021-6-28 · For this reason, this method is sometimes accelerated with steam, high pressure water jets or by tumbling and vibrating the slag. Another stabilization process is the use of acidic compounds that react with steel slag and remove free lime [20,21]. Covering the surface of BOF slag is another treatment that has been applied by Chen et al. . The ...

FPO IP Research & Communities

Heat treatment apparatus heating substrate by irradiation with light A capacitor, a coil, a flash lamp, and a switching element such as an IGBT are connected in series. A controller outputs a pulse signal to the gate of the switching element. ... HOMOGENIZATION OF MARTENSITIC STAINLESS STEEL AFTER REMELTING UNDER A LAYER OF SLAG A method of ...

METHOD FOR STABILIZATION TREATMENT OF STEEL …

A method of treatment of steelmaking-slag for stabilization characterized by adjusting the steelmaking-slag to an amount of moisture or amount of carbonated-water of a range less than the moisture value where free-water starts to be present and at least a value 10 mass% smaller than that moisture value, then supplying a flow of CO2 gas for carbonation treatment without …

High Quality Remove Slag Dissolved Air Flotation Machine

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Steelmaking Slag

 · D. Sichen, in Fundamentals of Metallurgy, 2005 9.5.1 Slag–metal mixing. In steelmaking, slag–metal mixing is a very common phenomenon and it occurs due to the shear at the slag–metal interface caused by excessive liquid steel flow. 37 This mixing leads to emulsification of steel in slag, which increases the total interfacial area and consequently the …

Primary characteristics and applications of iron …

2020-10-18 · Today, iron and steel slag is used in many fields where its unique characteristics can be put to effective use. As a result of growing environmental awareness, iron and steel slag is highly regarded as a recycled material that …

Resurrection of the iron and phosphorus resource in steel …

This research focused on the treatment of steel-making slags to recycle and recover iron and phosphorus. The carbothermal reduction behavior of both synthesized and factory steel-making slag in microwave irradiation was investigated. The slags were mixed with graphite powder and heated to a temperature higher than 1873 K to precipitate a lump of Fe–C alloy with a …

Steel slag in China: Treatment, recycling, and management

2018-8-1 · Many restrictions exist, however, on the utilization of steel slag. When steel slag is used internally, in steel plants, the most obvious problem is that of the enrichment of P and S (Drissen et al., 2009).The Bhilai Steel Plant in India was shut down because of its high S and P content (Das et al., 2007).The amounts of free lime and free MgO are important for the …

steel

Vacuum treatment. Exposing steel to vacuum conditions has a profound effect on all metallurgical reactions involving gases. First, it lowers the level of gases dissolved in liquid steel. Hydrogen, for example, is readily removed in a vacuum to less than two parts per million. Nitrogen is not as mobile in liquid steel as hydrogen, so that only ...

Evaluation of steel slag for organic and inorganic removals …

Article "Evaluation of steel slag for organic and inorganic removals in soil aquifer treatment" Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and technology information which hitherto stood ...

Treatment of steel making slag- ...

2021-9-10 · Treatment of steel making slag,Treatment of steel making slag,,,,,。

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

The steelmaking slag containing high phosphorus (1-3 % P 2 O 5) is not possible to be used in blast furnace, as all the phosphorus will report to iron increasing the refining load in steelmaking. Therefore, the removal of phosphorus is essential for ... An overview of treatment of steel-making slag for recovery of lime and phosphorus values.

Steel slag in China: Treatment, recycling, and management

Steel slag is the main waste product in the steelmaking process. Because of its chemical composition and technical properties, it can be reused as raw material in steel plants and can serve as a substitute for aggregates in civil engineering. In this paper, we reviewed steel slag treatment, recycling, and management in China.

Extera IEG

C/005 Steel salvage. C/006 Aluminium salvage. C/007 Salvage of products containing mercury. C/008 Mineral oil salvage. C/009 Animal and vegetable oil salvage. C/010 Organic waste salvage. C/011 Wood salvage. C/012 Ferrous metal salvage. …

Advantages and disadvantages of steel slag treatment …

2022-6-20 · Advantages: fast slag discharge, simple process, less land occupation, less investment, small size of steel slag after treatment (about 5mm), stable performance. Disadvantages: improper operation during water quenching of molten slag is prone to explosion, and the uniformity of steel slag grain size is poor. Can only handle liquid slag.

Economic and environmentally beneficial treatment of …

2022-6-24 · Steel-making slag Steel furnace slags emanate from a range of sources. Differences in slags from the various process units are due more to raw materials and desired final steel chemistry than Type of slag Annual world production Iron and steel slags 300 million tons Nickel slags (FeNi + sulphide) 15 million tons Copper slags 14 million tons (7 ...

Use Slag in a sentence

In view of the malpractice in treating Ag-Bi slag by fire method and chlorinating method, a new technology of whole-wet method for Ag-Bi slag treatment was proposed. The successor to the old Greek culture whose golden age had turned to slag. Fire, corrosive, slag, shock, explosive, and even ''white'' damage guns all have their place.

Slag treatment at Kardemir integrated iron and steel works

Slag treatment at Kardemir integrated iron and steel works Y kaya *,N.Sevinc ß,A.Gu ¨naydın Department of Metallurgical and Materials Engineering,Middle East …

Converter steel slag treatment device and method

2017-6-7 · A converter steel slag treatment device comprises a crown block, a slag tank, a chute, a forklift, a steel slag pool, a bottom filter pool, a water pump room, a water storage pool, a cooling tower, a bridge type grab bucket crane, a chimney, hydraulic double rollers, a nozzle, a granulation room and a condensed water pool; the crane hook is connected with the slag pot; …

Co-treatment of Waste From Steelmaking Processes: Steel …

The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO2, metallurgical slag, and wastewater. Enhancing the development and deployment of treating waste from the steelmaking process will be environment friendly and resource-saving. Capturing CO2 by steel slag (SS) via …

Steelmaking Slag

Steel slag in China: Treatment, recycling, and management

Steel slag in China: Treatment, recycling, and management

2018-8-1 · The production of steel slag per ton of steel produced is reported to be considerably lower (0.12e0.16 ton (Gutt and Nixon, 1979;Du et al., 2019)) than that of …

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

The steelmaking slag containing high phosphorus (1-3 % P 2 O 5) is not possible to be used in blast furnace, as all the phosphorus will report to iron increasing the refining load in steelmaking. Therefore, the removal of phosphorus is essential for

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Steel slag for building material and treatment process of …

2014-12-10 · Steel slag for building material and treatment process of steel slag. Cite. Download. Patent: CN-104496209-A: Inventor: CHEN GANG. Assignee: NANJING MEISHAN METALLURG DEV. NANJING MEISHAN STEEL SLAG TREAT CO LTD. SHANGHAI MEISHAN IRON & STEEL. Date: Priority . 2014/12/10.

Steel Slag

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. These materials must be source separated, and well-defined handling practices must be in ...

Treatment Methods for Mitigation of High Alkalinity in …

Treatment methods that include coating steel slag with bitumen, bathing steel slag in either Fe(III), Al(III), or PO 4 (-III), and mixing steel slag with an alum-based drinking water treatment residual (WTR) were designed and evaluated based on reduction in Ca release, pH, and alkalinity in the leachate of treated steel slag samples.

Omkar Avinash Shinde

The mortar specimens without bacterial treatment as well as without steel slag served as controls. After 7-day and 28-day curing, the compressive strength …

Treatment of Acid Mine Drainage (AMD) using industrial …

2018-8-20 · This study highlights the potential of steel slag, which is an industrial by-product of steel making industry as treatment media for metal-rich acid mine drainage (AMD). A series of batch adsorption studies has been done to demonstrate the effects of contact time, solution pH, initial concentration of metal, adsorbent dosage and size, and the ...

Recycling of ironmaking and steelmaking slags in Japan …

2022-4-6 · The mass production of steel is inevitably accompanied by large quantities of slags. The treatment of ironmaking and steelmaking slags is a great challenge in the sustainable development of the steel industry. Japan and China are two major steel producing countries that have placed a large emphasis on developing new technologies to decrease slag emission or …

Pedro Lastra González

Proyecto coordinado por la Secretaría de Estado de Agua y Medioambiente de la República Árabe Saharaui Democrática (RASD) y Alouda Cantabria, con la participación de ISF Cantabria, la asociación La Pera, el Ayuntamiento de Santander y el Ayuntamiento de Torrelavega, que se engloba en el programa para la mejora del acceso al agua de la población saharaui en los …

Treatments and Recycling of Metallurgical Slags …

2018-11-7 · In this chapter, techniques for the treatment and recycling of metallurgical slags are described. Metallurgical slags are considered secondary raw materials and are used or added during the process to improve …

(PDF) An overview of treatment of steel-making …

About 150-180 kg steelmaking slag is generated per ton of steel depending upon the quality of hot metal. At present less than 50% of the slag is used in road …

Steel Slag

Carlos Thomas, ... Francisco Agrela, in New Trends in Eco-efficient and Recycled Concrete, 2019. 7.1.2 Types and classification of steel slags. Steel slags (SSs) are usually classified according to the type of furnace in which they are produced. The properties of the slag depend on the type of process used to produce the crude steel, the cooling conditions of the slag and the …

Microwave treatment of slags: Case studies of Cr-bearing ...

Microwave treatment of slags: Case studies of Cr-bearing steel making slag and Ti-bearing blast furnace slag. In Proceedings ICS 2008: The 4th International Congress on the Science and Technology of Steelmaking (pp. 650-653).