recycling of blast furnace slag

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recycling of blast furnace slag

Recycling of Blast Furnace Slag and Fluorite Tailings into ...

Download Citation | Recycling of Blast Furnace Slag and Fluorite Tailings into Diopside-Based Glass-Ceramics with Various Nucleating Agents' Addition | Diopside-based glass-ceramics are ...

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Blast Furnace Slag – IspatGuru

Blast Furnace Slag. Blast-furnace (BF) slag is defined by the American Society for Testing and Materials as 'the non-metallic product consisting essentially of silicates and alumino-silicates of calcium and other bases that is developed in a molten condition simultaneously with iron in a blast furnace'.

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recycling of blast furnace slag

Advances in slag recycling and reuse UK EssaysHow to Make Cement From Blast Furnace Slag. In the past slag was taken from the blast furnace basic oxygen furnace BOF and electric arc furnace EAF and hauled off to a hazardous dump site where millions of tons have accumulated The major waste by product from steel production is slag at as shown in 1 Steps have been taken all over the world to ...

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Recycling of waste PET granules as aggregate in alkali ...

Ground granulated blast furnace slag (GGBS) and metakaolin (MK) were used as binder in the mixtures. MK was used by replacing with GGBFS about 10% and 20% by weight. Unground slag aggregate and waste PET aggregate used in the mixtures. Waste PET aggregate was used at 0%, 20%, 40%, 60%, 80% and replacement by volume of unground slag aggregate.

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A novel recycling approach for efficient extraction of ...

The recycling of high-titanium-bearing blast furnace slag (TiO 2 > 23 wt.%) is an urgent problem that has attracted global research attention. To achieve high-efficiency, low-consumption, clean, and high value-added recycling utilization, a new process is proposed herein, which entails reacting a CH 4-H 2-N 2 gas mixture with the titanium-bearing blast furnace slag to initially produce Ti(C, N ...

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RECYCLING OF FLUE DUST INTO THE BLAST FURNACE

Blast furnace flue dust contains valuable amounts of carbon and iron. The contents of harmful trap elements are low enough for recycling into the blast furnace. Since 1993, SSAB Tunnplåt in Luleå has recycled the flue dust by charging it into the blast furnace in the form of a cold-bonded dust briquette.

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Phosphate Removal from Aqueous Solutions Using Calcium ...

Blast furnace slag (BF slag) also has a potential as an adsorbent for removing phosphate from wastewater. BF slag is a high-volume byproduct resulting from iron-making process, in which approximately 290 kg of BF slag is pro-duced per ton of pig iron in blast furnace. In Japan, BF slag has currently been recycled in civil engineering work

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(PDF) Recycling of waste PET granules as aggregate in ...

PDF | On May 1, 2014, Semiha Akçaözoğlu and others published Recycling of waste PET granules as aggregate in alkali-activated blast furnace slag/metakaolin blends | Find, read and cite all the ...

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A Review of Slag Chemistry in Lead Recycling | SpringerLink

A critical review of the technical literature on slag chemistry in lead recycling is presented. Laboratory methods used to improve our understanding of these systems is described. Ongoing investigations in the Kroll Institute for Extractive Metallurgy are presented.

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Synthesis of metaettringite from blast furnace slag and ...

Blast furnace slag (BFS) is generated as a by-product in the ironmaking process, and hence, the development of a recycling system for BFS waste is important. In this study, the calcium component of BFS obtained from a steel company in Japan was successfully used as raw material of the synthesis of metaettringite. Metaettringite has been recently considered for as an adsorbent for boron, …

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Modification of microstructure of LD slag for recovery of ...

Download Citation | Modification of microstructure of LD slag for recovery of hybrid flux material | The Basic Oxygen Furnace steel making process produces BOF slag (LD slag) at a rate of about ...

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Estimation of the environmental credit for the recycling ...

Blast furnace slag is one of the major byproducts of which fraction are approximately 50% of the total byproducts and wastes combined (Son, 2000). Depending on the cooling method applied to blast furnace slag, the slag is divided into two types: air-cooled blast furnace slag and GBFS.

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Blast Furnace Slag Cement (Application, Pros & Cons)

Blast Furnace Slag (BFS) cement is the combination of Ordinary Portland Cement (OPC) and fine Granulated Blast Furnace Slag (GBFS) gained as a byproduct in the steel making manufacturer with below 70% to that of cement. Ground Granulated Blast Furnace Slag (GGBFS) is a fine glassy granule which encompasses cementitious possessions.

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Blast Furnance Slag - User Guideline - Embankment or Fill ...

Corrosivity: Blast furnace slag is mildly alkaline, with a pH in nonstagnant water mixtures in the range of 8 to 10. Despite the fact that blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate is slightly alkaline and does not present a …

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Slag recycling - recovery

The three most important trends for slag recycling relate to further investments in granulation plants for blast furnace slag, the increase in slag trading with separate slag grinding plants and the increasing use of steelworks slag as an additive for the concrete industry.

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Recycling of Blast Furnace Slag and Fluorite Tailings into ...

Downloadable! Diopside-based glass-ceramics are successfully produced by recycling blast furnace slag and fluorite tailing with the addition of supplementary elements such as TiO 2, Fe 2 O 3 and Cr 2 O 3 as nucleation agents, using a conventional melting method. The effects of various nucleating agents on the phase components and structure of the prepared glass-ceramics were evaluated by a ...

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Characteristics of Mortars with Blast Furnace Slag Powder ...

Recently, interest in environmentally friendly development has increased worldwide, especially in the construction industry. In this study, blast furnace slag powder (BFSP) and mixed steel fine aggregates were applied to cement mortars to reduce the environmental damage caused by the extraction of natural aggregate and to increase the recycling rate of steel by-products in the construction ...

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Recycling of industrial waste and performance of steel ...

Influence of slag and steel slag composite on properties of high content slag concrete [J]. New Building Materials, 2004, 20(7): 13–15. (in Chinese) Google Scholar [14] TANG Wei-jun, REN Z, ZHU Jian-hui. Study on activation of micro-powder mixture of granulated blast-furnace slag and steel slag [J].

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Blast Furnace Slag - User Guideline - Granular Base - User ...

Gradation: Blast furnace slag should be crushed and screened to produce a material that satisfies the grading requirements of granular base and subbase specifications, such as AASHTO M147. Compacted Density : The compacted density varies with size and grading of the slag, method of measuring, and bulk specific gravity of the slag.

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"Recycling of ladle furnace slags" by Sima Aminorroaya ...

Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980's, the relatively low ...

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iron slag recycling process machinery

The SLAG-REC® project for an innovative direct dry granulation of . Electric Arc Furnace Slag, Dry Granulation, EAF Slag Recycling The present paper describes a new system, the SLAG-REC® machine, for the direct dry The industrial processes involved in …

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(PDF) Uses of Blast Furnace Slag as Complex Fertilizer ...

Uses of Blast Furnace Slag as Complex Fertilizer. Maghchiche Abdelhak. IntroductionSlags are the final wastes from the steel industry. Although they are, in fact, classified as wastes, they have been widely reused for various purposes for a long time.BFS (blast-furnace slag) is a by-product in the production of iron and steel manufacturing, its ...

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What Are the Uses of Blast Furnace Slag (BFS)? - FTM Machinery

The output of blast furnace slag can not be ignored. If it can be used reasonably, it will save a lot of energy and resources. BFS ouput of several countries. How to process blast furnace slag? Of course, with the latest trend of recycling society, the effective utilization of blast furnace slag has already attracted people's attention.

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Recycling of Blast Furnace Slag and Fluorite Tailings into ...

Diopside-based glass-ceramics are successfully produced by recycling blast furnace slag and fluorite tailing with the addition of supplementary elements such as TiO2, Fe2O3 and Cr2O3 as nucleation agents, using a conventional melting method. The effects of various nucleating agents on the phase components and structure of the prepared glass-ceramics were evaluated by a differential scanning ...

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Recycling and environmental issues of metallurgical slags ...

Thus crystallized blast furnace slag has little or no value as a cementing component. Crushed BF slag for use as aggregate, ballast and light-weight building material has been an important industry for many years. The concrete made of BF slag as aggregate has the similar properties compared to the conventional aggregates.

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Recycling of Blast Furnace Slag and Fluorite Tailings into ...

In the paper very important the technology of recycling area was presented. In the article the information of diopside-based glass-ceramics are produced by recycling blast furnace slag and fluorite tailing with adding additional elements of TiO2, Fe2O3 and Cr2O3 as nucleation agents using a conventional melting method was presented.

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Treatments and Recycling of Metallurgical Slags | IntechOpen

The addition of blast furnace slag into cement avoids a part of limestone and coal extraction and makes it possible to diminish the CO 2 emissions that cause environment pollution. It is important to have in mind that blast furnace slags present particular hydraulic properties.

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ITP Steel: Recycling and Reuse of Basic Oxygen Furnace ...

The recycling of blast furnace (BF) slag has made significant progress in past years with much of the material being utilized as construction aggregate and in cementitious applications. However, the recycling of BOF/BOP slag still faces many technical, economical, and environmental challenges. Previous efforts have

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Scrap and recycling - Home | ArcelorMittal

Blast furnace slag and the waste gases from various stages in the steelmaking process already have a wide range of uses. For example, we have a partnership with Ecocem at our Dunkirk and Fos sites in France. Ecocem granulates blast furnace slag to create a partial replacement for Portland cement.

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Strategy Paper On Resource Efficiency in Steel Sector ...

Steelmaking process are generally classified under two heads, namely, Blast 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

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