On Fertilizer Production Blast Furnace Slag

KR20240095982A

The siliceous fertilizer composition of the present invention includes granulated blast furnace slag and cattle manure combustion ash. ... blast furnace furnace slag weight fertilizer composition combustion ash Prior art date Application number KR1020220178158A

Alkali activation of blast furnace slag using a carbonate …

The utilization of calcium carbide residue (CCR) as alkali activator is promising to reduce production cost and ensure production safety. In this study, CCR/carbonates system and Ca(OH) 2 /carbonates system were used to replace the NaOH and KOH to activated blast furnace slag developing cemented paste backfill (CPB), and the difference of reaction …

Study on Preparation of Silicon Fertilizer from Water-quenched Blast

Study on Preparation of Silicon Fertilizer from Water-quenched Blast Furnace Slag[J]. Multipurpose Utilization of Mineral Resources, 2019, (5): 116-120. doi: 10.3969/j.issn.1000-6532.2019.05.025 ... Liu Yang, Zhang Chunxia. Study on Preparation of Silicon Fertilizer from Water-quenched Blast Furnace Slag[J]. Multipurpose Utilization of …

Cropping With Slag to Address Soil, Environment, …

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 …

Si-BASED FERTILIZER FROM BLAST FURNACE SLAG

The present invention relates to a siliceous fertilizer manufacturing method using the blast furnace slag, the slag generated in the blast furnace, and the step of weighing the water glass in the ratio of 70 ~ 80:20 ~ 30 by weight in each hopper; Charging the weighed blast furnace slag and water glass into a blender and mixing them; Charging the mixed mixture to a molding …

Slag products

Converter slag. Converter slag is used in the cement industry. Ladle slag. Is used as an additive in the blast furnace. Used in the cement industry and the manufacture of rock wool as a calcium-containing and aluminum-containing …

Fertilizer

Fertilizer. The use of fertilizers and materials produced from blast furnace and steel slags has a long tradition. For example Thomasphosphate had been used for more than hundred years. ... Converter lime from basic oxygen furnace slag as well as from ladle slag from the production of non-alloyed steel is suitable for all kinds of soils ...

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 slag silicate …

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 …

Elution of Plant Nutrition Elements from Steel Slag …

Three types of slag fertilizers (granulated blast furnace slag, de-phosphorization slag, and decarburization slag) were prepared for the static test in a paddy field. In each case, the slag …

POSCO: Fe-enhanced slag silicate fertilizer: How …

Silicate fertilizer can be a solution for these two obstacles. Since 1973, we have supplied 14 million tonnes of blast furnace (BF) slag, a core ingredient of silicate fertilizer, to the farming industry.

The Use of Secondary Metallurgy Slag as Soil Corrective …

Silicate fertilizers, made by blast furnace slag, are currently in use both in Japan and U.S., under specific regulations.[36] Furthermore, materials made by iron- and steel-making slag (blast, converter, and ladle furnaces) were included …

Production and recycling of blast furnace slag: A life cycle …

This article investigated the cradle‐to‐gate environmental impact of granulated blast furnace slag (GBFS) produced in the steel industry and replacement of blast furnace (BF) slag (50%) in place of clinker in Portland slag cement using GaBi software (Indian extension database). In case of GBFS production, maximum burden on the environment is due to BF …

Increase of soil organic carbon stock by iron slag-based …

In addition, silicate fertilizer made from blast furnace slag (BFS), an industrial byproduct in iron and steel production processes, is widely used to lime Asian rice paddies, particularly in Korea and Japan (Ali et al., 2009, Makabe-Sasaki et al., 2014, Takahashi, 1981).

Ground Granulated Blast Furnace Slag(GGBS)

We are the stalwarts in the domain of manufacturing, supplying, wholesaling, and exporting Ground Granulated Blast Furnace Slag(GGBS) These flavor grade chemicals are processed using pure and accurate ingredients that are procured from reliable and trusted vendors of the market. Our range is available in the market at leading prices in packs of different quantities.

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 amount of BFS unused …

High-performance glass-ceramics based on blast and arc furnace slag …

This work aims to take advantage of some solid industrial wastes, represented in blast furnaces and arc furnace slags, in the production of high-performance and cheap glass-ceramic materials, as well as protecting and cleaning the environment from these harmful wastes. 2. ... which mainly depends on blast furnace slag, were found to be melted ...

Research on Non-fired Bricks by Blast Furnace Slag and …

Changing phosphate tailings into wealth is not only the inevitable requirement for sustainable development, but also the long-term strategy for building a harmonious society.The production of new non-fired brick made by phosphate tailings, steel slag, blast furnace slag, phosphogypsum and limestone can ease the pressure on resources and reduce ...

Uses of Blast Furnace Slag as Complex Fertilizer

Production of fertilizers from steel manufacturing by-products such as LD slag, semi-calcined dolomite and ammonium sulphate and their application in agricultural systems, viz. pasture …

Development of Slag Flowability Prediction Formula for …

tical blast furnace slag during the cooling stage (1 600 K–1 800 K). sion method with R2 = 0.93. In this study, two regression Eqs. (4) and (5) are obtained by using the two-stage linear regression method as shown in Fig. 3 with the proposed slag deformation temperature as …

Recent trends in slag management & utilization in the steel …

The GPC was incorporated with rice husk ash (RHA) and ground granulated blast furnace slag (GGBFS), which may have potential in the construction industry to replace Portland limestone cement (PLC ...

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, and appears …

Blast furnace slag

Blast furnace slag is formed during the production of hot metal by thermo-chemical reduction in a blast furnace. During this continuous process, iron ore or pellets as well as fluxes (lime[stone] and/or dolomite) are heated under reducing conditions in the presence of heated air. Coke and other reducing agents (e.g. injected coal) are combusted to produce […]

Iron and steel slag products : NIPPON SLAG ASSOCIATION

Approximately 60% of blast furnace slag is used as a raw material for this purpose. ... Because blast furnace slag includes fertilizer components CaO, SiO 2, and MgO, it is used in rice cultivation as a calcium silicate fertilizer. To make rock wool used as thermal insulation, molten slag is formed into fibers, and then processed into sheets or ...

The development of compressive strength of ground granulated blast

The ground blast furnace slag employed is a latent hydraulic product, which can be activated by suitable activators. Without an activation, the development of the strength of the GGBS is extremely slow and the development of the slag necessitates a pH ⩾ 12 [7]. GGBS plays an important role in the development of the compressive strength.

Synergistic treatment of blast furnace slag and basic oxygen furnace …

1. Introduction. In 2022, global crude steel production reached 1,885,738 million tons, marking increase of 0.2 % compared to 2020 [1].Basicity oxygen furnace (BOF) slag and blast furnace slag (BFS), as prominent solid wastes in the steel industry, have seen rising emissions, which negatively affects the development of the steel industry [2].Notably, the …

Production and recycling of blast furnace slag: A life cycle …

This article investigated the cradle-to-gate environmental impact of granulated blast furnace slag (GBFS) produced in the steel industry and replacement of blast furnace (BF) slag (50%) in place of clinker in Portland slag cement using …

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 addition to rice cultivation.

Design of a Novel Fertilizer Made of Steelmaking Slag Using …

In Japan, Thomas phosphatic fertilizer was temporarily manufactured in the 1920s. Silicate fertilizer is a popular fertilizer made from blast furnace slag, which is currently applied …

Synthesis of foliar and Ca‐S‐Si compound

The synthesis of foliar and Ca‐S‐Si compound fertilizers using titanium‐bearing blast furnace slag, potassium bisulfate, citric acid, carbamide, and magnesia as raw materials is reported for the first time. This synthesis enhances the solubility of the slag and transforms the nutritional elements into such forms as to be more readily absorbed by plants.