Activation mechanisms of three types of industrial by …
Steel slag (SS) and granulated blast furnace slag (GBFS) are solid wastes with cementitious properties from the metallurgical industry. After hot disintegrating process, the f-CaO reacted with water vapour to generate Ca(OH) 2 and improve the soundness problem of SS [14].The existance of GBFS could also react with the Ca(OH) 2 generated …
A novel synergistic method on potential green and high …
In this paper, a novel conceptual design of 13X zeolite and hydrotalcite-like compound production process by utilizing blast furnace slag was proposed. In the leaching process, the major influence factors were focused on the slag particle size, hydrochloric acid concentration and reaction temperature.
Improving methane mitigating functionality of blast furnace …
Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as main …
An Overview of Use of Linz-Donawitz (LD) Steel …
Physical and chemical and mineralogical characteristics of LD steel slag. It has been found that the density of LD slag lies between 3.3-3.6g/cm. 3 Due to its high Fe content, steel slag looks in appearance a loose collection, …
Recent trends in slag management & utilization in the steel …
Fig.4: Blast Furnace (BF) Fig.5: Air Cooled BF Slag Fig.6: Granulated BF Slag T able 4: Blast Furnace & BOF Converter Slag Composition Plant CaO SiO 2 Al 2 O3 MgO FeO MnO S Basicity
Improving methane mitigating functionality of blast furnace slag …
1. Introduction. Blast furnace slag (BFS), a byproduct of the iron-production process, is generally composed of silicate (SiO 2) and aluminum oxide (Al 2 O 3) from the primary iron ore and calcium oxide (CaO) from the added lime (Horii et al., 2015; Piatak et al., 2015).BFS belonged to non-hazardous waste (Proctor et al., 2000; Hybská et al., …
Steel Slag Utilization — Overview in Indian …
Process of slag Generation (epa.gov) During the process of reducing iron ore through coke in a blast furnace, blast furnace slag is generated while steel making slag is generated in the process of ...
FactSage Studies to Identify the Optimum Slag Regime for Blast Furnace …
Decreasing the slag rate can lead to a lower fuel rate and higher productivity in the blast furnace (BF). Indian iron ore is known to have adverse alumina–silica ratio. Therefore, to reduce the slag rate there is a need to either remove alumina from the iron ore or to add more silica to dilute the effect of alumina in slag. The latter would increase the …
Improving methane mitigating functionality of blast furnace slag …
Abstract. Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as main components and iron and manganese as electron acceptors. This amendment improves soil productivity and mitigates methane (CH 4) emissions.
Cropping With Slag to Address Soil, Environment, and Food …
Notably, steel-making slag and blast furnace slag have been extensively utilized as raw materials for fertilizer production, mostly in Japan, Korea, and China. Fertilizers made of slag are categorized as slag silicate fertilizer, lime fertilizer, slag phosphate fertilizer, and iron matter of special fertilizer ( Ito, 2015 ).
Green and High Efficiency Preparation of Silicon Fertilizer …
In view of the high content of silica in fly ash and abundant heat in blast furnace slag, high efficiency silicon fertilizer was prepared by mixing blast furnace …
Improving methane mitigating functionality of blast furnace slag …
Blast furnace slag (BFS), a byproduct of iron-producing process, has been applied as silicate fertilizer in rice paddy. Silicate fertilizer contains lime and silicate as main components and iron and manganese as electron acceptors. This amendment improves soil productivity and mitigates methane (CH 4) emissions.However, its …
Mechanism of slag-based silicate fertilizer suppressing …
The addition of electron acceptors to boost soil microbes competitive to methanogens could minimize methane (CH 4) emissions from paddy soils.To study the microbiological mechanisms underlying the suppression of CH 4 emissions, silicate fertilizer made from blast furnace slag that contains electron acceptors, such as Fe, …
Performance study of alkali-activated phosphate slag-granulated blast
Ordinary Portland cement (OPC) is an important material in infrastructure construction. According to statistics, the annual production of OPC in China can reach 2.2 billion tons [].However, OPC not only consumes a lot of energy in the production process but also emits CO 2 into the air. Studies have shown that the cement industry is the third …
Synergistic preparation of high-performance composite blast furnace …
Blast furnace slag (BFS) is a byproduct generated during the ironmaking process in a blast furnace. It mainly consists of silicates and aluminosilicates, with a high content of amorphous structure. BFS is commonly used in the cement and construction industries [1], [2]. However, high-quality BFS is in short supply because of the great …
Creating new value of blast furnace slag as soil
Blast furnace slag (BFS), a by-product of iron making, has been utilized as silicate fertilizer in Korean and Japanese rice paddy. Silicate fertilizer, which has high contents of active iron and ...
Fertilizers : Iron and steel slag products : NIPPON SLAG …
Because blast furnace slag contains fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as calcium silicate fertilizer.In addition to these three components, steelmaking slag also contains components such as FeO, MnO, and P 2 O 5, and is used for a broad range of agricultural purposes, including dry field farming and pastures in …
Steelmaking Slag for Fertilizer Usage
Both blast furnace slag and steelmaking slag have been utilized as raw materials for fertilizer. Fertilizers made of blast furnace slag or steelmaking slag are categorized in …
Green and High Efficiency Preparation of Silicon Fertilizer with Blast …
In view of the high content of silica in fly ash and abundant heat in blast furnace slag, high efficiency silicon fertilizer was prepared by mixing blast furnace slag with fly ash directly. When the fly ash and blast furnace slag were mixed with a mass ratio of 7.76:92.24, the effective silicon content in silicon fertilizer was highest after the …
Steelmaking Slag for Fertilizer Usage
cate fertilizer made from blast furnace slag began to decrease sharply in the early 1970s. According to Nippon Slag Association's statistics on the use of slag in 2012, the total consumption. ndment was 260 000 tons.2.2 Fertilizers made from blast furnace slag and steelmaking sl. gIron and steel slag can largely be divided into blast furnace ...
Uses of Blast Furnace Slag as Complex Fertilizer
The paper presents the basic characteristics of slag, analyses and it's modification by incorporating some essential plant nutrients and the possibility of its application as …
Treating sulfate-bearing soil by using sodium silicate and …
In order to reduce the swelling caused by the formation of ettringite, industrial by-products had been used as substitutes for lime and cement, such as ground granulated blast-furnace slag (GGBS) [7, 38, 55, 56, 58].However, GGBS needed alkali activation to produce calcium silicate hydrate (CSH), calcium aluminate hydrate (CAH), and calcium …
Synthesis of foliar and Ca‐S‐Si compound fertilizers from …
The effects of the process conditions on the dissolution rates of iron, titanium, and magnesium were investigated through the experiment. The results showed that the optimal synthesis process conditions for foliar fertilizer are 560°C for 12 min, with the mass ratio of potassium bisulfate to titanium-bearing blast furnace slag at 6:1.
Investigation of Phosphate Removal Capability of Blast Furnace Slag …
Blast Furnace Slag (BFS) is a by-product of iron making with a potential to be used in different applications. ... energy consumption 3 and production costs 2,4. One of these potential ...
Improving methane mitigating functionality of blast furnace …
Silicate fertilizer made of blast furnace slag decreased seasonal CH 4 flux by 20% over the control. Adding a small amount of iron rust as an electron acceptor …
Life cycle assessment of a novel blast furnace slag
1. Introduction. Resource utilization of solid waste was a crucial means to realize circular economy. As the main by-product of iron and steel industry, blast furnace slag (BFS) was produced approximately 300 million tons per year in China [1, 2].Although the utilization rate of slag had been significantly improved, there was still a considerable …
Full article: Silicon elution from three types of steel slag
Water-cooled blast furnace slag is called granulated blast furnace slag. Production of slag silicate fertilizer in Japan peaked at 1,400,000 t per year in 1968 (Kato Citation 2002) ... X-ray diffraction of granulated blast furnace slag fertilizer is shown in Fig. 8 a. A broad peak in X-ray diffraction means that this fertilizer has an amorphous ...
Euroslag
Ferrous slag is the by-product of iron and steel manufacturing. It arises from the conversion of ores to iron, hot iron to steel, from melting scrap in an electric arc furnace or from the subsequent treatment of crude steel. Each year, about 45 million tonnes of ferrous slag (iron and steel slag) is generated in Europe. ... Fertilizer; News.
Blast Furnace Slag: Production, Types, Composition, …
Blast furnace slag (also called fine granulated blast furnace slag [GGBFS]) is a material that we call as one of the supplementary cementitious materials. Ground granulated blast furnace slag is the glassy material formed from molten slag produced in blast furnaces as an industrial by-product from the production of iron used …
Review: alkali-activated blast furnace slag for eco-friendly …
Blast furnace slag (BFS) is by-products during the production of pig iron at high temperature (about 1300–1500 °C) in a blast furnace [].BFS is formed during the melting of iron ore, flux (i.e., limestone and dolomite) and inorganic parts from the fuel combustion [].The chemical composition of BFS can generally be described in the …