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recycling of blast furnace slag

Recycling of steel slag as an alkali activator for blast

2022年12月17日  The recycling–utilization rate of steel slag in China is less than 30%. Steel slag is rich in CaO and can produce the Ca(OH)2 after hydration, which are expected to activate the pozzolanic activity of blast furnace slag. This work recycled steel slag as an

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Recycling of blast furnace slag to prepare calcium silicate

2022年9月1日  1. Introduction. Blast furnace slag (BFS), one of the typical bulk industrial solid wastes, is generated during the iron making process due to the chemical reaction

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Sustainability Free Full-Text Recycling of Blast Furnace

2021年10月9日  Diopside-based glass-ceramics are successfully produced by recycling blast furnace slag and fluorite tailing with the addition of supplementary elements such as

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Sustainability for Blast Furnace Slag: Use of Some

2015年7月3日  Blast furnace slag is a by-product from blast furnaces which is used to produce iron. Blast furnace slag has been used extensively as a successful replacement

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Treatments and Recycling of Metallurgical Slags

2018年11月7日  Blast furnace slag is obtained at 1300–1400°C; viscosity is around 0.4–1.0 poise; the chemical composition mainly includes FeO, CaO, MgO, SiO 2, Al 2 O 3, TiO 2, S, and C; the alkalinity (CaO/SiO 2) is 1.2;

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Discussion of blast furnace slag recycling of a factory IEEE ...

A large amount of solid waste slag is generated in the production process in iron and steel enterprises. As for enterprise which takes blast furnace as the process, blast furnace

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Slag recycling - recovery

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 granulation and 14 % was air-cooled BFS.

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(PDF) Recycling of Blast Furnace and Coal Slags in Aided ...

2021年7月16日  methods using novel or yet not used soil amendments, such as blast furnace slag (BFS) and coal slag (CS), with Dactylis glomerata L. as a test plant. (2)

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UG-Mat Blast Furnace Slag Recycled Materials

Blast furnace slag is a nonmetallic coproduct produced in the process. It consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. The molten slag, which absorbs much of the sulfur from the

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Decarbonising the iron and steel sector for a 2 °C target

2022年1月13日  In a pathway based on energy recovery and resource recycling of glassy blast furnace slag and crystalline steel slag, we show that a reduction of 28.5 ± 5.7% CO 2 emissions to the sectoral 2 °C ...

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Recycling of steel slag as an alkali activator for blast

2022年12月17日  The recycling–utilization rate of steel slag in China is less than 30%. Steel slag is rich in CaO and can produce the Ca(OH)2 after hydration, which are expected to activate the pozzolanic activity of blast furnace slag. This work recycled steel slag as an alkali activator for the activation of blast furnace slag and prepared a steel slag-blast

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A Review on Recycling and Reutilization of Blast Furnace

2021年6月3日  A large amount of dust is formed as one of the primary by-products during the blast furnace ironmaking process. Besides iron and carbon, it contains a variety of valuable metals such as zinc, lead, and indium widely applied in many industry fields. However, it is difficult to recycle and reutilize blast furnace dust (BFD) due to complex

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A Review on Reclamation and Reutilization of Ironmaking

2018年12月12日  This review aims to provide fundamental works on slag recycling and application to the ironmaking and steelmaking slags and the potentials of future use for enhanced sustainability of the industry. ... Mendoza G, Mancha H, Méndez J (2001) Reactivity of blast-furnace slag in Portland cement blends hydrated under different

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Minerals Free Full-Text Blast Furnace Slag,

2022年4月14日  Blast Furnace Slag is used in the construction industry as a mineral amendment or aggregate. Their use in Earth Construction, due to their post-industrial origin, may be associated with increased levels of

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Critical Review for Utilization of Blast Furnace Slag in

2020年9月12日  In last 5 years, an enhancement of over 18% for blast furnace slag and basic oxygen furnace slag has been achieved (GOI 2013–2014). By continuing thrust on solid waste consumption at the integrated iron and steel plants, total solid waste utilization has increased from 77% in the 2007–2008 to 86%; an increase of 9% over the last 5

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CO2 mineral sequestration by using blast furnace slag:

2020年10月13日  Blast furnace slag is an important industrial solid waste produced in the blast furnace ironmaking process [1], which is primarily used to produce building materials with low added values, such as ...

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(PDF) Recycling of Blast Furnace and Coal Slags in Aided ...

2021年7月16日  methods using novel or yet not used soil amendments, such as blast furnace slag (BFS) and coal slag (CS), with Dactylis glomerata L. as a test plant. (2) Methods: The experiment was conducted on post-

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Recycling of steel slag powder in green ultra-high strength

2 天之前  The metallurgical slag has been utilized to prepare concrete materials. For instance, blast furnace slag is typical metallurgical slag, which now has been widely used in the concrete sector [4]. Also, scholars attempted to use electric furnace slag to replace natural aggregate in concrete with considerable compressive strength [5].

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Recycle of ground granulated blast furnace slag and fly

2020年3月4日  In this research, blast furnace slag was recycled to progressively replace the fine fraction of flint clay at 0, 5, 10, 15, and 20 wt% in laboratory-scale conventional refractory castable samples ...

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86 IRON AND STEEL SLAG - USGS

2020年2月7日  Blast furnace slag was about 50% of the tonnage sold and accounted for 88% of the total value of slag, ... Recycling: Following removal of entrained metal, slag can be returned to the blast and steel furnaces as ferrous and flux feed, but data on these returns are incomplete. Entrained metal, particularly in steel slag, is routinely recovered

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IRON AND STEEL SLAG - USGS

2022年1月31日  Blast furnace slag was about 49% of the tonnage sold and accounted for 87% of the total value of slag, most of which was granulated. ... Recycling: Following removal of entrained metal, slag can be returned to the blast and steel furnaces as ferrous and flux feed, but data on these returns are incomplete. Entrained metal, particularly in

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Discussion of blast furnace slag recycling of a factory IEEE ...

A large amount of solid waste slag is generated in the production process in iron and steel enterprises. As for enterprise which takes blast furnace as the process, blast furnace slag accounts for more than 50%. Blast furnace slag disposal has experienced the following development: as a waste treatment, use in subgrade and foundation engineering, to the

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Recycling of steel slag powder in green ultra-high strength

2 天之前  The metallurgical slag has been utilized to prepare concrete materials. For instance, blast furnace slag is typical metallurgical slag, which now has been widely used in the concrete sector [4]. Also, scholars attempted to use electric furnace slag to replace natural aggregate in concrete with considerable compressive strength [5].

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Characteristics and environmental aspects of slag: a review

Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements to water. This chapter reviews the characteristics of both ferrous (steel and blast furnace Fe) and non ...

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Minerals Free Full-Text Effect of High Temperature

2022年12月30日  This study investigates the pattern of influence of blast furnace slag tempering on the composition and structure of steel slag. The chemical composition, equilibrium phase composition, microscopic morphological characteristics and elemental composition of microscopic regions of steel slag and blast furnace slag modified by high

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Recycling of blast furnace sludge by briquetting with

Steel plants generate significant amounts of wastes such as sludge, slag, and dust. Blast furnace sludge is a fine-grained waste characterized as hazardous and affecting the environment negatively. Briquetting is one of the possible ways of recycling of this waste while the formed briquettes serve as a feed material to the blast furnace.

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Effects of phosphogypsum substitution on the

2023年3月25日  Considering that PG can provide Ca 2+ and SO 4 2− to a reaction system, this study develops an economic and environmental approach for optimizing the performance of PG-based alkali-activated binders (PGAABs) based on the combined use of PG, ground granulated blast furnace slag (GGBFS) and fly ash as precursors.

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Effect of Waste Ceramic Powder on Properties of Alkali

2021年8月22日  Every year, ceramic tile factories and the iron smelting industry produce huge amounts of waste ceramic tiles and blast furnace slag (BFS), respectively. In the field of construction materials, this waste can be used as a raw material for binders, thus reducing landfill waste and mitigating environmental pollution. The purpose of this study was to

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Blast Furnace Slag – Tarmac

16 小时之前  Blast furnace slag is a secondary aggregate used widely in construction because of its performance attributes and durability. Slag aggregates produced by Tarmac are supplied as CE marked products under the Factory production control process of ISO 9001:2008 for the production of products to BS EN 12342 - Aggregates for Unbound and

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